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GM 7.5/7.625-Inch 10-Bolt Posi Differential Kit – 26 Spline, 3.73 Ratio — Northline Parts

GM 7.5/7.625-Inch 10-Bolt Posi Differential Kit – 26 Spline, 3.73 Ratio

SKU: NLT2S01449
$1,271.39 In Stock
$1,271.39
Sale price  $1,271.39 Regular price 
Ships for free in 2–4 business days.
This posi differential, ring-and-pinion and bearing kit is intended for compatible GM 7.5-inch and 7.625-inch 10-bolt rear axles. It uses a 3.73:1 gear ratio and the specified 26-spline axle configuration.
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • GM 7.5-inch / 7.625-inch 10-bolt rear axles configured for 26-spline shafts
  • exact year/case generation must be checked

Product Overview

A limited-slip differential upgrade can improve how torque is delivered to the rear wheels. Rebuilding the axle also requires careful ring-and-pinion setup, bearing preload and backlash adjustment; an incorrect carrier or spline count will not work.

Key Features & Performance

  • Limited-slip carrier, 3.73 gear set and bearing/install kit as specified by supplied package

Replaces / Cross-References

  • GM7.5-373

Common Reasons for Replacement

Traction upgrade, damaged carrier, worn differential bearings or axle-gear ratio change.

Fitment Notes

Measure ring gear diameter; verify carrier series, axle splines, ABS/tone ring, housing year and pinion details.

Frequently Asked Questions

Is this an OEM part? No. This listing is for an aftermarket replacement or upgrade component unless explicitly identified as genuine OEM. Brand names and original-equipment numbers identify applications, not manufacturer affiliation.

How do I confirm fitment? Measure ring gear diameter; verify carrier series, axle splines, ABS/tone ring, housing year and pinion details.

Part Summary

Keywords: GM 7.5/7.625-Inch 10-Bolt Posi Differential Kit – 26 Spline, 3.73 Ratio, GM7.5-373, GM 7.5-inch / 7.625-inch 10-bolt rear axles configured for 26-spline shafts, exact year/case generation must be checked.

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

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