Ring and Pinion Install Kits
Circle Track Ring and Pinion Install Kits at JJ Motorsports
Simplify gear upgrades and ensure proper setup with comprehensive ring and pinion install kits from JJ Motorsports. These kits include bearings, shims, seals, crush sleeves, and hardware for precise backlash adjustment, reduced wear, and optimal performance in demanding IMCA, USMTS, and dirt oval racing for late models, modifieds, and street stocks.
Shop trusted brands like Allstar Performance for Ford 9in kits, Motive Gear for master install sets, and Yukon Gear and Axle for durable components. Explore related categories such as Circle Track Differentials and Rear End Components for complete assemblies or Circle Track Differential Bearings for individual upgrades.
Top Circle Track Ring and Pinion Install Kits
- Allstar Performance Bearing Kit Ford 9 3.062 Bearing ALL68512 – Differential Installation Kit with Bearings, Crush Sleeve, Gaskets, Hardware, Seals, Shims, Thread Locker for Ford 9 in.
- Allstar Performance Bearing Kit Ford 9 2.893 Bearing ALL68511 – Differential Installation Kit with Bearings, Crush Sleeve, Gaskets, Hardware, Seals, Shims, Thread Locker for Ford 9 in.
- BK FORD 8.8in 81-10 R8.8RMKT – Master Differential Installation Kit with Bearings, Crush Sleeve, Gaskets, Hardware, Seals, Shims, Thread Locker for Ford 8.8 in.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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- Qty in Cart
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- Price
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Allstar Performance Bearing Kit Ford 9 3.062 Bearing ALL68512
ALLSTAR PERFORMANCE
$110.99A worn or improperly installed differential bearing setup will compromise your Ford 9-inch's reliability under load and kill your lap times. This Allstar Performance kit eliminates guesswork by bundling every critical component needed for a proper...ALL68512- SKU:
- ALL68512
- Availability:
- Ships Same Business Day
- Weight:
- 5.18 LBS
- MFG Part #:
- ALL68512
$110.99 -
Allstar Performance Bearing Kit Ford 9 2.893 Bearing ALL68511
ALLSTAR PERFORMANCE
$109.99A properly installed differential bearing kit is essential for maintaining consistent gear mesh, reducing backlash, and preventing premature wear in high-stress racing applications. This Allstar Performance kit provides everything needed for a complete...ALL68511- SKU:
- ALL68511
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- MFG Part #:
- ALL68511
$109.99 -
BK FORD 8.8in 81-10 R8.8RMKT
MOTIVE GEAR
$140.99A Ford 8.8-inch differential rebuild requires precision components that work together seamlessly—this master installation kit includes everything you need to properly set bearing preload, backlash, and crush sleeve specifications without guesswork...MOTR8.8RMKT- SKU:
- MOTR8.8RMKT
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
$140.99 -
Master Install Kit 8.5in w/Eaton or Auburn Unit R10REMKT
MOTIVE GEAR
$169.99Rebuilding or servicing a differential demands precision—and this master install kit eliminates guesswork by bundling every component you need to properly assemble an 8.5-inch GM 10-bolt differential. Whether you're refreshing worn bearings, installing a...MOTR10REMKT- SKU:
- MOTR10REMKT
- Availability:
- Ships Same Business Day
- Weight:
- 5.65 LBS
$169.99 -
Ford 8in Master Bearing Kit RA310RMK
MOTIVE GEAR
$145.99A worn or improperly set up Ford 8-inch differential will destroy performance and create costly failures—this master bearing kit gives you everything needed for a complete, factory-correct rebuild or upgrade. Whether you're refreshing a classic build or...MOTRA310RMK- SKU:
- MOTRA310RMK
- Availability:
- Ships Same Business Day
- Weight:
- 4.61 LBS
$145.99 -
GM 10 Bolt 8.6in Bearing Kit R10RLMK
MOTIVE GEAR
$148.99A quality differential installation requires precision-engineered bearings and properly matched components—this master kit eliminates guesswork by including everything you need for a complete, professional-grade rebuild. Whether you're refreshing worn...MOTR10RLMK- SKU:
- MOTR10RLMK
- Availability:
- Ships Same Business Day
- Weight:
- 6.04 LBS
$148.99 -
8.5 GM Master Bearing Kit R10REMK
MOTIVE GEAR
$118.99A properly installed differential is the foundation of reliable rear-end performance, and worn bearings or damaged crush sleeves will compromise handling and accelerate component wear. The 8.5 GM Master Bearing Kit R10REMK gives you everything needed for...MOTR10REMK- SKU:
- MOTR10REMK
- Availability:
- Ships Same Business Day
- Weight:
- 5.70 LBS
$118.99 -
Install Kit GM 8.5in Rearend Early GM8.5IK
MOTIVE GEAR
$61.99A complete differential installation kit is essential when rebuilding or servicing your GM 8.5-inch rearend—it ensures proper sealing, correct bearing preload, and reliable operation without leaks or premature wear. This kit consolidates all the...MOTGM8.5IK- SKU:
- MOTGM8.5IK
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
$61.99 -
Install Kit Ford 9in Rearend F9IK
MOTIVE GEAR
$49.99A properly installed differential is the foundation of reliable rear-end performance, and this Ford 9-inch install kit eliminates guesswork by providing all critical components in one package. Whether you're assembling a fresh rearend or refreshing an...MOTF9IK- SKU:
- MOTF9IK
- Availability:
- Ships Same Business Day
- Weight:
- 1.66 LBS
$49.99 -
Install Kit Ford 8.8in Rearend F8.8IK
MOTIVE GEAR
$52.99A properly installed Ford 8.8 differential requires precision assembly with OEM-spec components—this kit gives you everything needed to do it right the first time. Whether you're rebuilding a stock unit or upgrading to a performance diff, having the...MOTF8.8IK- SKU:
- MOTF8.8IK
- Availability:
- Ships Same Business Day
- Weight:
- 2.08 LBS
$52.99 -
Master Overhaul Kit GM 8.5 Rear YKNYKGM8.5
YUKON GEAR AND AXLE
$259.89A worn differential is a ticking time bomb on the track or trail—inadequate bearings and seals lead to catastrophic failure when you need reliability most. This Master Overhaul Kit gives you everything needed for a complete rebuild of your GM 8.5 rear...YKNYKGM8.5- SKU:
- YKNYKGM8.5
- Availability:
- Ships Same Business Day
- Weight:
- 6.23 LBS
- MFG Part #:
- YK GM8.5
$259.89 -
Master Overhaul Kit GM 12 Bolt Car YKNYKGM12P
YUKON GEAR AND AXLE
$310.89A worn differential is the silent killer of rear-end performance—it compromises handling, increases wear on drivetrain components, and can strand you mid-race. This master overhaul kit gives you everything needed to restore your GM 12-bolt to factory...YKNYKGM12P- SKU:
- YKNYKGM12P
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- MFG Part #:
- YK GM12P
$310.89 -
Winters Aluminum Spool Setup Checking Bearing 2.031 in ID Steel WIN5294
WINTERS
$35.99Setting up a Winters aluminum spool requires precision—and this checking bearing eliminates guesswork during the critical shim adjustment phase. By using this dedicated setup tool, you can dial in your spool's preload and endplay before pressing on final...WIN5294- SKU:
- WIN5294
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- 5294
$35.99 -
GM 8.5 10 Bolt Car Mega Installation Kit 83-1021-M
RICHMOND
$198.99A differential rebuild demands precision—misaligned bearings, improper crush sleeve installation, or missing seals can quickly turn a fresh build into catastrophic failure. This comprehensive installation kit eliminates guesswork by bundling every...RIC83-1021-M- SKU:
- RIC83-1021-M
- Availability:
- Ships Same Business Day
- Weight:
- 7.13 LBS
- MFG Part #:
- 83-1021-M
$198.99 -
Complete Kit GM 8.5in w/ Eaton / Auburn Posi 366K
RATECH
$129.99A differential rebuild requires precision components and proper assembly—this complete kit eliminates guesswork by including every bearing, seal, and shim needed for a bulletproof installation. Whether you're refreshing a tired 8.5-inch GM axle or...RAT366K- SKU:
- RAT366K
- Availability:
- Ships Same Business Day
- Weight:
- 5.75 LBS
- MFG Part #:
- 366K
$129.99 -
Bearing Kit Ford 9in 216B
RATECH
$86.99A worn or failing differential bearing kit compromises the precision and reliability of your Ford 9-inch rear end, leading to excessive play, noise, and potential catastrophic failure under load. This complete bearing kit restores proper carrier and...RAT216B- SKU:
- RAT216B
- Availability:
- Ships Same Business Day
- Weight:
- 3.72 LBS
- MFG Part #:
- 216B
$86.99 -
Allstar Performance Bearing Kit for Ford 9" 3.250" Carrier Bearing with Daytona 28-Spline Pinion Support and Solid Spacer ALL68543
ALLSTAR PERFORMANCE
$129.99A Ford 9-inch rear end is only as reliable as its differential assembly, and this Allstar Performance bearing kit eliminates guesswork by providing every component you need in one package. Whether you're rebuilding after a track session or starting fresh...ALL68543- SKU:
- ALL68543
- Availability:
- Ships Same Business Day
- Weight:
- 6.08 LBS
- MFG Part #:
- ALL68543
$129.99 -
Allstar Performance Bearing Kit for Ford 9in 3.250 Carrier Bearing 28-Spline Pinion Support ALL68542
ALLSTAR PERFORMANCE
$119.99If you're running a Ford 9-inch rear axle at the track or in serious street duty, the integrity of your carrier and pinion support directly impacts both performance and reliability. This Allstar Performance Bearing Kit consolidates the critical...ALL68542- SKU:
- ALL68542
- Availability:
- Ships Same Business Day
- Weight:
- 6.03 LBS
- MFG Part #:
- ALL68542
$119.99 -
Allstar Performance Bearing Kit for Ford 9in 3.250 Carrier Bearing with 35-Spline Pinion Support ALL68541
ALLSTAR PERFORMANCE
$142.99A properly spec'd bearing kit is non-negotiable when rebuilding a Ford 9-inch differential—cheap or incomplete kits lead to premature wear, noise, and catastrophic failure under boost or sustained load. This Allstar Performance kit supplies everything...ALL68541- SKU:
- ALL68541
- Availability:
- Ships Same Business Day
- Weight:
- 5.84 LBS
- MFG Part #:
- ALL68541
$142.99 -
Allstar Performance Bearing Kit for Ford 9" 3.250" Carrier Bearing with MW or Strange 28-Spline Pinion Support No Spacer or Crush Sleeve ALL68540
ALLSTAR PERFORMANCE
$129.99If you're running a Ford 9-inch rear axle with a MW or Strange 28-spline pinion support, this Allstar Performance Bearing Kit is essential for maintaining precise carrier geometry and supporting heavy loads during acceleration and cornering. A properly...ALL68540- SKU:
- ALL68540
- Availability:
- Ships Same Business Day
- Weight:
- 5.85 LBS
- MFG Part #:
- ALL68540
$129.99
