Mopar 8 3 4 Posi Unit8 3/4 Mopar Complete Built To Order (489 case) …. All Parts Include 1 Year Manufacturers Warranty. 75 8 3/4 WORM GEAR POSI FITS ALL CASES TRU TRAC NEW GREAT DEAL Brand New C $842. 00 Chrysler 8-3/4" / Ring & Pinon Gear. Top center: Reinstall the carrier, the adjusters, and the bearing caps paying close attention to your positional marks you applied during disassembly. Clutch Style Posi Unit. 7 results for mopar 8 3/4 posi unit. 8 3/4 Mopar Complete Built To Order (489 case) Center Section $1,369. the differential is contained in a removable carrier assembly which is extracted from the axle housing toward the front of the car. For this unit the manufacturer recommends 8-10 inch pounds of rotational torque. For this unit the manufacturer recommends 8-10 inch pounds of rotational torque. All 8-3/4" carrier assemblies can be identified externally by the casting numbers. Click Here Have a New Product Idea? Have a new product idea? Please tell us about it. 00 Chrysler 8-3/4" / Ring & Pinon Gear Set / 742 Case / 10 Spline Pinion 0 Review (s) Your Price: $168. 75 Differential applications. Optional Upgrade to Solid Pinion Spacer (489 Case Only) Fits 742 (Early) Case OR 489 (Late) Case. 185WK - WAVETRAC Fits HAG215 Rear Axle $1,295. 8-3/4 MOPAR 489 NODULAR IRON CENTER SECTIONS. The Chrysler 8-3/4″ rear axle assembly was introduced in 1957. 00 68lo23 (1,160) 100% Buy It Now. Cubic Inch Liters Rod Ratio Horsepower Transmission Ratio RPM Tire Height Redeem Your Yukon Trailsac Find A Distributor Positractions and Lockers Yes Plan Registration Contact Us Get in touch with the RANDYS team. Chrysler 8-3/4" (C8. Complete M0875 MOPAR 8 3/4" MUSCLE PAK All components are new manufactured items (No remanufactured, refurbished or rebuilt components). 489 Rear Diff Convert to Posi. Moser Engineering is well known for providing enthusiasts and racers with new, high-performance parts for differentials and rearends, and now they’re building brand new replacement 8-3/4-inch housings for Mopars. Mopar Performance P4529484 8 3/4 Sure Grip …. 75 8 3/4 Powr Lok Posi Sure ">Dodge CHRYSLER Plymouth Mopar 8. New Chrysler clutch and steel plate kit allows you to rebuild your existing clutch-type Sure Grip unit. The axle has an 8-3/4″ diameter ring gear. Moser Engineering">3RD MEMBERS/CARRIERS/GEARS/FLUIDS. Does this unit require No-Slip additive? Asked by: paint sniffer 8 3/4 Mopar (0) $550. 30 spline posi unit. Complete 8 3/4 Centersections Mancini Racing offers you a complete professionally remanufactured centersection - Units come with 7290 yokes, Units with 7260 yokes are. 75" / Posi / Gears / Bearing Kit / Package">Chrysler 8. 75) 489 Case Third Member. 00 Moser Engineering Details Chrysler 8. the differential is contained in a removable carrier assembly which is extracted from the axle housing toward the front of the car. 8 3/4" bearing rebuild kit $85. 75" Note: Requires Timken 25590/25520 bearing and race (not included) Specifications: Part Type Differential Quantity Sold individually Aftermarket Carrier Style Limited slip Axle Shaft Spline Quantity 30 Carrier Material Ductile iron. 75" Ring & Pinion (your choice of ratio) Chrysler 8. These stamped housings are made with all brand new parts, welded in-house at their facility in Indiana. 00 Chrysler 8-3/4" / Ring & Pinon Gear Set / 489 Case / 29 Spline Pinion 0 Review (s) Your Price: $168. Thankfully, most 8 3/4 differentials can be rebuilt, and many new parts are available. 3rd Members, Carriers & Gears. I am wanting the make the car (75 Duster) a bit more friendly on the. 88 5% off or Best Offer Free shipping Free returns Sponsored Cuda Challenger GTX Pinion Thrust Spacer Kit 8 3/4 Mopar Sure Grip Rear Brand New $27. 73 & Up Gear Ratios View Details View Price In Cart (1) Estimated to ship direct from manufacturer in 24hrs FREE Shipping Lowest Price Guarantee Add To Cart Eaton 19663-010 Part Number: 362-19663-010. It is relatively easy to determine which axle your car currently has and then determine which one it was equipped with from the factory. Classic Mopar Tech 1962 - 1965 Mopars Posi-unit Allen Romine Oct 25, 2020 Oct 25, 2020 #1 A Allen Romine Member Local time 4:31 AM Joined Jan 29, 2020 Messages 5 Reaction score 2 Location Atwood, Il Just wondering what a posi-unit from a 489 case in a 65 8 3/4 rear end might be worth. Fully assembled 8-3/4 center sections. Mopar Performance P4529484 8 3/4 Sure Grip Rebuild Kit 19. This unit has New Yukon Aggressive clutches in it. Package includes; New Heavy Duty MO875 (8 3/4" MOPAR) Made in the U. 008" backlash, this sets the carrier bearing preload and the backlash. 75" Chrysler Mopar Ring & Pinion Gears - 4. 75" Opens in a new window or tab. Find many great new & used options and get the best deals for Dodge CHRYSLER Plymouth Mopar 8. 00 Add To Cart 5W9F31 - 9" Ford 31 Spline WAVETRAC (Manufacture # 56. mopar 8 3/4 sure grip 489 for sale. the differential is contained in a removable carrier assembly. Moser Engineering 542051 - 8 3/4 Mopar Add To Cart ★★★★★ (0) $550. The majority of cars equipped with a Dana 60 rear axle. Posi Differential 1971-89 GM Car/Truck Rear 1977-91 GM Tuck Front 28-Spline Axles 8. Axle Pkg Stock Length Mopar 5X4 1/2" Bolt Pattern (pair) $298. 88 5% off or Best Offer Free shipping 4 watchers Sponsored MOPAR 8 3/4, 8. 00 Chrysler 8-3/4" / Ring & Pinon Gear Set / 742 Case / 10 Spline Pinion 0 Review (s) Your Price: $168. Above right: The finished center section is also painted with Seymour’s with extra care given to make sure the gears do not get any overspray. 8 3/4 MOPAR Complete Built to Order Fabricated Housing & Axle Package Mopar fanatics…your wait for the strongest 8 3/4" rear end is finally over. Chunky Monkey: 8¾ Rear End Center Section Rebuild. Mopar fanatics…your wait for the strongest 8 3/4" rear end is finally over. 75 Rear Differential Identifiers. 75 Powr-Lok Sure-Grip Posi - Power Lock - 30 Spline - NEW Heavy-Duty Clutch-Style Posi Traction Unit - Mopar Condition: New Quantity: 4 available / 261 sold Price: US $415. 8 3/4 Mopar Complete Built To Order (489 case) Center Section 875 Unit will ship within two business days of completed transaction. For Chrysler Mopar 8-3/4" Sure-Grip / Power-Lock Posi Unit - 30 Spline 8. It has all original internals in excellent condition. SKU N/A Category THIRD MEMBERS Tags center section, ford 9", rear end, third member. 75 Powr-Lok Sure-Grip Posi - Power Lock - 30 Spline - NEW Heavy-Duty Clutch-Style Posi Traction Unit - Mopar Condition: New Quantity: 4 available / 261 sold Price: US $415. 00 DIFFERENTIAL FLUID: YES, INCLUDE 3-QTS OF LUCAS OIL SAE 80W-90 PLUS HEAVY DUTY GEAR OIL (LUC-10043) (Add $27. 00 Add To Cart 5W9F33 - 9" Ford 33 Spline WAVETRAC (Manufacture # 56. 75 Powr-Lok Sure-Grip Posi 30 Spline $319. 75 8 3/4 Powr Lok Posi Sure. Chrysler 8-3/4 - 8. 00 Chrysler 8-3/4" / Ring & Pinon Gear Set / 489 Case / 29 Spline Pinion 0 Review (s) Your Price: $168. 75" Mopar Center Section- 3rd Member- 489 - 3. Posi Traction Differential. 00 Mopar 8 3/4" 489, 741, or 742 case bearing rebuild kit Green Bearings (PAIR) $68. 75" Sure-Grip / Powr Lock Posi Unit (30 Spline) Chrysler 8. 75) Featured Products Chrysler 8-3/4" / Sure Grip / Power Lock / Posi Unit / 30 Spline 0 Review (s) Your Price: $415. 75 Powr-Lok Sure-Grip Posi 30 Spline New Limited Slip Lock For Chrysler 8-3/4 8. 750 in ">JEGS 62820: Posi Traction Differential for Chrysler 8. Chrysler 8-3/4" (C8. Complete 8 3/4 Centersections Mancini Racing offers you a complete professionally remanufactured centersection - Units come with 7290 yokes, Units with 7260 yokes are built to order. Classic Mopar Tech Engine, Trans & Driveline 8 3/4 posi unit upgrade Baklash555 Oct 29, 2020 Oct 29, 2020 #1 B Baklash555 Well-Known Member Local time 9:07 PM Joined Nov 2, 2018 Messages 74 Reaction score 27 Location moulton alabama I have a 68 charger that has an open 742 rear end. Accepts Stock 30 Spline Axle Shafts. 8 3/4 MOPAR Complete Built to Order Fabricated Housing & Axle Package Mopar fanatics…your wait for the strongest 8 3/4" rear end is finally over. 75 8 3/4 WORM GEAR POSI FITS ALL CASES TRU TRAC NEW GREAT DEAL Brand New C $842. I have a complete rear end out of a D200 with a 489 case that has the gears, but it does not have Posi. Like all good upgrade or changeover parts, it's not just for Mopar use. Heavy Duty 2 Piece Case with 6 Forged Internal Gears. 89 or Best Offer from United States Sponsored 8-3/4" 8. It is a banjo-type (Hotchkiss) axle, ie. 88 10% off or Best Offer Free shipping Free returns Sponsored Chrysler Mopar 8-3/4" 8. It is a banjo-type (Hotchkiss) axle, ie. 8 3/4 MOPAR Complete Built to Order Fabricated Housing & Axle Package. *Powder coating service will add an 2 - 3 days to the process. The most common casting numbers for the 8 3/4 centersections end in the numbers 741, 742, and 489, with the 741 case being the least desirable due to its small diameter pinion bearing. Technical mopar 8 3/4 differential. YOKE Refurbished 4 product ratings $1,599. Fabricated Housing, with OEM located mounting provisions, seamless steel tubing (3" O. 88 10% off or Best Offer Free shipping Free returns Sponsored. 45 for 12 months with PayPal Credit* Buy It Now Add to cart Add to Watchlist Additional service available 2-year protection plan from Allstate - $70. 75 8 3/4 Powr Lok Posi Sure Grip Clutch Type at the best online prices at eBay! Free shipping for many products!. Posi Traction Differential for Chrysler 8. I currently have an 8 3/4 with a 489 case with a set of 3. Classic Mopar Tech Engine, Trans & Driveline 8 3/4 posi unit upgrade Baklash555 Oct 29, 2020 Oct 29, 2020 #1 B Baklash555 Well-Known Member Local time 9:07 PM Joined Nov 2, 2018 Messages 74 Reaction score 27 Location moulton alabama I have a 68 charger that has an open 742 rear end. 75" Sure-Grip / Powr Lock Posi Unit (30 Spline) Chrysler 8. I am wanting the make the car (75 Duster) a bit more friendly on the highway by installing a set of 3. Originally created by Chrysler in 1957, the 8 3/4-inch rear was used in many Chrysler cars and Dodge trucks through about 1974. 75) Featured Products Chrysler 8-3/4" / Sure Grip / Power Lock / Posi Unit / 30 Spline 0 Review (s) Your Price: $415. Classic Mopar Tech Engine, Trans & Driveline 8 3/4 posi unit upgrade Baklash555 Oct 29, 2020 Oct 29, 2020 #1 B Baklash555 Well-Known Member Local time. The line of differentials is highlighted by the Yukon HD and Eaton clutch units for Mopar 8. 75) Featured Products Chrysler 8-3/4" / Sure Grip / Power Lock / Posi Unit / 30 Spline 0 Review (s) Your Price: $415. I currently have an 8 3/4 with a 489 case with a set of 3. 30 spline posi unit; 1350 pinion yoke; choice of gear ratio $ gear ratio: Clear: 8-3/4 MOPAR 489 NODULAR IRON CENTER SECTIONS quantity. NOTE: In 1972, Dana went from the 4-pinion Powr Lok to the 2-pinion Trac Lok type of. Moser Engineering produces the only fabricated housing made to work with a MOPAR center section – The MO875. 58 drivelineworks (691) 100% Buy It Now +C $68. Yukon Gear & Axle: Hardcore Gear Sets, Axles, Lockers, Posi's. mopar 8 3/4 posi unit: Search Result. 86 Ratio - 489 Case - 29 Spl Brand New C $318. 75 Powr-Lok Sure-Grip Posi - Power Lock - 30 Spline - NEW Heavy-Duty Clutch-Style Posi Traction Unit - Mopar. 00 Mopar Green Bearings for 8 3/4" and Dana 60 rearends Availability: In stock 8 3/4" Ring and Pinion $195. 8-3/4 Sure-Grip rebuild kit. 26167 For 1966-1970 Plymouth and Dodge B-bodies there were three basic rear end assemblies that were available: the 8¼, the 8¾, and the 9¾ Dana 60. 30 spline posi unit; 1350 pinion yoke; choice of gear ratio $ gear ratio: Clear: 8-3/4 MOPAR 489 NODULAR IRON CENTER SECTIONS quantity. All centersections are built using all new parts using precision gears, national bearings and races, BCA seals and Auburn posi units. There are three basic types available distinguished by their drive pinion stem diameter. Chrysler 8-3/4" (C8. Tech Install: Custom Ordering Moser’s 8. 00 Mopar 8 3/4" 489, 741, or 742 case bearing rebuild kit Green Bearings (PAIR) $68. 8 3/4 Mopar posi rear third member Pre-Owned $695. 91- Posi- NEW Nodular Case - Third Member - 100% Brand New Brand New. 75) Featured Products Chrysler 8-3/4" / Sure Grip / Power Lock / Posi Unit / 30 Spline 0 Review (s) Your Price: $415. Chrysler 8-3/4" (C8. Fully assembled 8-3/4 center sections. It all worked out pretty well and I’m excited to finally be able to slide th. Like all good upgrade or changeover parts, it's not just for Mopar use. Rebuilding a Mopar 8. diameter, 10-bolt ring gear differentials with 26-spline rear axlesCombines an exclusive JEGS yellow 4-spring pack and Raybestos composite clutches for better traction and more controlled power transferFully rebuildable and assembled with state-of-the-art technology and real-world testing. A quick look at what we did to install the posi unit and 3. Fits 741, 742 & 489 3rd Member Cases. These differentials have a removable carrier, which, like the Ford 9-incher, unbolts from the front. 8 3/4" bearing rebuild kit $85. 30-Spline [All Ratios] Part Number: 555-62820. A quick look at what we did to install the posi unit and 3. 00 Reproduction 8 3/4" clutch sure-grip ("powr-lok") includes upgraded 1 piece 30 spline side gears and 4340 cr-mo. 75 Differential applications. Clutch Style Posi Unit; Fits 741, 742 & 489 3rd Member Cases; Accepts Stock 30 Spline Axle Shafts; Heavy Duty 2 Piece Case with 6 Forged Internal Gears; Fully Re-buildable; Requires 25590 Bearing / 25520 Race. The casting numbers are cast onto an ID pad on the driver's side of the carrier just behind the 'snout' of the case where the yoke attaches to the pinion. 8 3/4 Mopar Complete Built To Order (489 case) Center Section $1,369. 00 8 3/4" ring and pinions for 741, 742, or 489 cases. It all worked out pretty well. Chrysler 8-3/4 / Sure Grip / Power Lock / Posi Unit / 30 Spline-Clutch Style Posi UnitFits 741, 742 & 489 3rd Member CasesAccepts Stock 30 Spline. My Account: 0 item(s) View Cart: Home: My Account: Tech Info: Chrysler 8-3/4" Sure Grip / Power Lock. 61 Top Rated Seller Buy It Now +C $58. 8-3/4 MOPAR 489 NODULAR IRON CENTER SECTIONS. Classic Mopar Tech Engine, Trans & Driveline 8 3/4 posi unit upgrade Baklash555 Oct 29, 2020 Oct 29, 2020 #1 B Baklash555 Well-Known Member Local time 8:40 PM Joined Nov 2, 2018 Messages 74 Reaction score 27 Location moulton alabama I have a 68 charger that has an open 742 rear end. The Chrysler 8-3/4" rear axle assembly was introduced in 1957. 30 spline posi unit. Mopar 8 3/4 8. It is a banjo-type (Hotchkiss) axle, ie. JEGS Posi Traction Differential for Chrysler 8. Review this item: Price: Your Price: $415. Now turn the gear tooth side adjuster until you have. 489,741 or 742, the Difference?. Rebuilding a Mopar 8. 55 gears in the 8. Find many great new & used options and get the best deals for Dodge CHRYSLER Plymouth Mopar 8. 1961-1973 Chrysler, Dodge, Plymouth Vehicles. I have a complete rear end out of a D200 with a 489 case that has the gears, but it does. 00 DIFFERENTIAL FLUID: YES, INCLUDE 3-QTS OF LUCAS OIL SAE 80W-90 PLUS HEAVY DUTY GEAR OIL (LUC-10043) (Add $27. 25 | Installing a posi + a ring & pinion - YouTube A quick look at what we did to install the posi unit and 3. NOTE: In 1972, Dana went from the 4-pinion Powr Lok to the 2-pinion Trac Lok type of differential and the clutches are not interchangeable between the two. 5dzz0jj6fm (106) 100% or Best Offer Free local pickup 22 watchers Sponsored For Chrysler Mopar 8-3/4" Sure-Grip / Power-Lock Posi Unit - 30 Spline 8. Posi's & Differentials. 00 Chrysler 8-3/4" / Ring & Pinon Gear Set / 742 Case / 10 Spline Pinion 0 Review (s) Your Price: $168. Designed specifically for early MOPAR vehicles including; A, B, & E Body cars. Now while holing tension on the carrier (needs tension to leave a good clean mark) turn the yoke in both directions to get a good reading. I currently have an 8 3/4 with a 489 case with a set of 3. Complete 8 3/4 Centersections. 8 3/4 Mopar Complete Built To Order (489 case) Center Section 875 Unit will ship within two business days of completed transaction. New Chrysler clutch and steel plate kit allows you to rebuild your existing clutch-type Sure Grip unit. Differential options include excellent choices for street/strip, circle track and offroad applications. Moser Engineering 8-3/4-Inch. Everything is torqued down to factory specs using the Fsm. SOLD] Dodge Chrysler Plymouth Mopar 8. The Chrysler 8-3/4" rear axle assembly was introduced in 1957. The line of differentials is highlighted by the Yukon HD and Eaton clutch units for Mopar 8. 8-3/4 MOPAR 489 NODULAR IRON CENTER SECTIONS. 8 3/4 Mopar Complete Built To Order (489 case) Center Section $1,369. Originally created by Chrysler in 1957, the 8 3/4-inch rear was used in many Chrysler cars and Dodge trucks through about 1974. item 3 New Limited Slip Lock For Chrysler 8-3/4 8. Since we needed a solid rear for our '71 Road Runner, we contacted Randy's Ring and Pinion to check out. The axle has an 8-3/4" diameter ring gear. Dodge CHRYSLER Plymouth Mopar 8. This Unit is dated 3/7/68. 00 Mopar Green Bearings for 8 3/4" and Dana 60 rearends Availability: In stock 8 3/4" Ring and Pinion. 91 gears and a posi unit installed. The line of differentials is highlighted by the Yukon HD and Eaton clutch units for Mopar 8. Detroit Locker 350S79 - No-Spin Rockwell Differential Universal. It all worked out pretty well and I'm excited to finally be able to slide th. Posi Differential 1971-89 GM Car/Truck Rear 1977-91 GM Tuck Front 28-Spline Axles 8. mopar 8 3/4 posi for sale. Continually rock the gears as you tighten the adjusters. Moser Engineering 542051 - 8 3/4 Mopar Add To Cart ★★★★★ (0) $550. All centersections are built using all new parts using precision gears, national bearings and races, BCA seals and Auburn posi units. Strange Engineering offers a wide variety of posi units and differentials to suit the Mopar 8. 75 8 3/4 Powr lok 4 pinion Sure Grip Posi Carrier. , 1/4" wall), custom alloy 30 spline bolt-in axles, bearings, studs, seals, heavy duty. 75" Ring & Pinion (your choice of ratio) Chrysler 8. 75" / Posi / Gears / Bearing Kit / Package. I am wanting the make the car (75 Duster) a bit more friendly on the highway by installing a set of 3. Originally created by Chrysler in 1957, the 8 3/4-inch rear was used in many Chrysler. 75) Ring and Pinion for 741, 742, or …. Posi Traction Differential. I have for sale a very good used Dodge Chrysler Plymouth Mopar 8. Strange Engineering offers a wide variety of posi units and differentials to suit the Mopar 8. For Chrysler Mopar 8-3/4" Sure-Grip / Power-Lock Posi Unit - 30 Spline 8. 75 8 3/4 Powr Lok Posi Sure Grip Clutch Type at the best online prices at eBay! Free shipping for many products!. For this unit the manufacturer recommends 8-10 inch pounds of rotational torque. *Powder coating service will add an 2 - 3 days to the process. Everything You Ever Wanted To Know About The 8 3/4 Axle. Clutch Style Posi Unit; Fits 741, 742 & 489 3rd Member Cases; Accepts Stock 30 Spline Axle Shafts; Heavy Duty 2 Piece Case with 6 Forged Internal Gears; Fully Re-buildable; Requires 25590 Bearing / 25520 Race. Thankfully, most 8 3/4 differentials can be rebuilt, and many new parts are available. Mopar 8 3/4 8. 75 Powr-Lok Sure-Grip Posi - Power Lock - 30 Spline - NEW Heavy-Duty Clutch-Style Posi Traction Unit - Mopar Condition: New Quantity: 4 available / 261 sold Price: US $415. It is retained by 10 nuts on studs in the housing. 75" Master Bearing/Installation Kit - Timken - 489 Case LM10949 Carrier Bearings -- 2. 73 391 NEW GEAR SURETRAC POSI third memb dodg. The Chrysler 8-3/4" rear axle assembly was introduced in 1957. Chrysler 8-3/4 - 8. Mopar ">Chunky Monkey: 8¾ Rear End Center Section Rebuild. Since we needed a solid rear for our '71 Road Runner, we contacted Randy's. 75 Rear Differential Identifiers ">Gallery: '66. 8 3/4 Mopar Fabricated Housing & Axle Package">8 3/4 Mopar Fabricated Housing & Axle Package. Cubic Inch Liters Rod Ratio Horsepower Transmission Ratio RPM Tire Height Redeem Your Yukon Trailsac Find A Distributor Positractions and Lockers Yes Plan Registration Contact Us Get in touch with the RANDYS team. Chrysler 8-3/4 - 8. Description. Complete 8 3/4 Centersections Mancini Racing offers you a complete professionally remanufactured centersection - Units come with 7290 yokes, Units with 7260 yokes are built to order. Strange Engineering offers a wide variety of posi units and differentials to suit the Mopar 8. 8-3/4 Sure-Grip rebuild kit. 95 shipping from United States 5 watchers Sponsored Results matching fewer words Chrysler 8-3/4" - 8. 00 Chrysler 8-3/4" / Ring & Pinon Gear Set / 489 Case / 29 Spline Pinion 0 Review (s) Your Price: $168. 8 3/4 Mopar Complete Built To Order (489 case) Center Section 875 Unit will ship within two business days of completed transaction. Choose Options: New Carrier Bearings: No. My first attempt looked terrible haha. Thankfully, most 8 3/4 differentials can be rebuilt, and many new parts are available. 23 742 ALL NEW 3rd memb dropout dodge pumpkin chunk add posi. 8 3/4 Mopar Complete Built To Order (489 case) Center Section Center Section. Mopar 8 3/4" 489, 741, or 742 case bearing rebuild kit 8 3/4" Clutch Type Sure-Grip ("Powr-lok") $395. In addition to the casting numbers:. Classic Mopar Tech 1962 - 1965 Mopars Posi-unit Allen Romine Oct 25, 2020 Oct 25, 2020 #1 A Allen Romine Member Local time 4:31 AM Joined Jan 29, 2020. 8 3/4 Mopar posi rear third member Pre-Owned $695. 8 3/4 Mopar Complete Built To Order (489 case) Center Section 875 Unit will ship within two business days of completed transaction. Classic Mopar Tech 1968 -1970 Mopars 489 Rear Diff Convert to Posi Go Fly Mar 21, 2019 Mar 21, 2019 #1 Go Fly FBBO Gold Member FBBO Gold Member Local time 9:59 AM Joined Apr 19, 2016 Messages 104 Reaction score 25 i have an open 489 and would like to convert to posi if possible or cost effective. The Chrysler 8-3/4" rear axle assembly was introduced in 1957. Auburn Positractions Limited. For travel on rain, ice, and snow to muddy trails and back roads, Auburn Positraction units provide a full range of limited-slip differentials. 30 or 35 spline, 5 X 4 1/2" bolt pattern axle package for 8 3/4" or Dana 60 with lug studs and Green sealed wheel bearings INSTALLED. For Chrysler Mopar 8-3/4" Sure-Grip / Power-Lock Posi Unit - 30 Spline 8. These positraction units are designed to transfer torque quickly and smoothly in any driving condition. 5dzz0jj6fm (106) 100% or Best Offer Free local pickup 22 watchers Sponsored For Chrysler Mopar 8-3/4" Sure. Posi's ">Yukon Gear & Axle: Hardcore Gear Sets, Axles, Lockers, Posi's. 91 gears and a posi unit installed. 52 shipping from United States 7 watchers Sponsored. from United States Last one 12 sold Sponsored Mopar 8 3/4 3:55 Posi 489 case rusty gears Pre-Owned C $557.