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Yukon Gear 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 28 Spline 3.73 Ratio

SKU: YUKYGK2337

Ring and Pinion and Differential Combos

YUK Gear Sets - GM...

Yukon Gear 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 28 Spline 3.73 Ratio

SKU: YUKYGK2337

Ring and Pinion and Differential Combos

YUK Gear Sets - GM...

Sale ends in Calculating...

A$3,414.78 A$3,676.16
IN STOCK! Est Ship 4-7 days. In stock at 1 location (7 available)

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Description

Exclusive Yukon Gear & Axle flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Yukon Gear & Axle part numbers. There's never been a better time to buy your Yukon Gear & Axle upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

Yukon Gear 70-96 Chevrolet Caprice Limited Slip & Re-Gear Kit - 8.5in Diff 28 Spline 3.73 Ratio

Yukon Gear & Axle(R) provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring and pinions, positractions, lockers, axle upgrades, rebuild kits, hubs, driveshafts, diff covers, and more. Proven at King of the Hammers and the granite crags of Moab, Yukon products are built for abuse so enthusiasts can gear up and wheel with confidence.

Additional Information

This kit dramatically improves traction and durability by adding a Yukon Dura Grip LSD and an upgraded ring and pinion set to your diff. It’s also an opportunity to generate next-level acceleration by moving to a more aggressive gear ratio.

Part Type

Differential Ring and Pinion Kit

Additional Application Notes
• 8.5 in. GM; Gear and Install Kit Package; Includes 3.73 Ratio Gear Set, Master Install Kit, 28 Spline Dura Grip Limited Slip Carrier and 2.25 in. O.D. Axle Bearings with Seals
• 8.5 in. Gm 3.73 Rear and Up Gear Ratio; w/28 Spline; 2.25 in. O.D.
• 8.5 in. GM; Gear and Install Kit Package; Includes 3.73 Ratio Gear Set, Master Install Kit, 28 Spline Dura Grip Limited Slip Carrier and 2.25 in. O.D. Axle Bearings with Seals 8.5 in. Gm 3.73 Rear and Up Gear Ratio; w/28 Spline; 2.25 in. O.D.

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:04:32

Data: v4.2 - Upd: 2026-11-11 11:11:24

Features

  • 10 bolt ring gear
  • 2.25 in. OD Bearings
  • 2.25" OD bearings
  • 3.73 ratio
  • 30 spline pinion gear
  • Coverage Incl. 70 To 81 Firebird Trans Am; 70 To 77 GTO; 25 Other Models; Or Anything Hot-Rodded w/A GM 8.5 in. Diff
  • Coverage includes ’70 to ’81 Firebird Trans Am, ’70 to ’77 GTO, 25 other models, or anything hot-rodded with a GM 8.5” diff
  • Fits GM 8.5 in. differential
  • Fits GM 8.5” differential
  • Incl. Dura Grip Positraction LSD; 28 Spline
  • Incl. Positraction Unit; Ring And Pinion Gear Set; And All Required Bearings And Installation Hardware
  • Includes Dura Grip positraction LSD, 28 spline
  • Includes positraction unit, ring and pinion gear set, and all required bearings and installation hardware

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

AAP Selling Package Quantity UOM:EA
Package UOMEA
Package Qty1
Description:Kit contains a ring and pinion set; positraction unit; and installation parts
Part Number:yukYGK2337
Title:Yukon Muscle Car Limited Slip & Re-Gear Kit for GM 8.5”, 30 spline, 3.73 ratio

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Yukon Gear & Axle, YUKON GEAR AND AXLE, Yukon Gear And Axle (randys)
StreetFX SKU yukYGK2337
SFX Item ID 4492625
Accounting SKU yuk-YGK2337
Manufacturer SKU YGK2337
Manufacturer UPC 883584126287
Alternative References YGA-12628

Ring and Pinion Gears and Installation Kit, 8.5" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI & AK 1563 AXLE BRGS (2.25" OD)

Yukon Gear & Axle ring and pinion and differential combos save time and money by including everything you need in one simple part number. Pro Kits feature a premium Yukon ring and pinion gear set, Yukon Master install kit with high-quality Timken bearings, and required small parts to get vehicles back on the road quickly. The gear and install kits include axle bearings and seals. Many of these combo kits include Dura Grip differentials, depending on application. Order the Yukon Gear & Axle ring and pinion gear and differential combo designed to fit your application.

Product Attributes
BrandYukon Gear & Axle
Manufacturer's Part NumberYGK2337
Part TypeRing and Pinion and Differential Combos
Product LineYukon Gear & Axle Ring and Pinion Gear and Differential Combos
UPC883584126287
Differential Case Design TypeGM 8.5 in.
Aftermarket Carrier StyleClutch-type
Axle Shaft Spline Quantity28
Ring and Pinion Ratio3.73:1
Cover Bolts10
Ring Gear Bolts10
Pinion Spline Count30
Ring Gear RotationStandard
Ring Gear Teeth41
Pinion Gear Teeth11
Ring Gear Diameter (in.)8.500 in.
Pinion Shaft Diameter (in.)1.313 in./1.626 in.
Cover Gasket IncludedYes
Pinion Shims IncludedYes
Carrier Shims IncludedYes
Crush Sleeve IncludedYes
Pinion Seal IncludedYes
Pinion Nut IncludedYes
Ring Gear Bolts IncludedYes
Head Bearing IncludedYes
Tail Bearing IncludedYes
Carrier Bearings IncludedYes
Axle Seals IncludedYes
Axle Bearings IncludedYes
Friction Modifier IncludedYes
Differential Oil IncludedNo
QuantitySold as a kit.

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