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Part fits the following years: 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972

Chevelle Differential, Limited Slip Pro Series 12-Bolt (3.07 - 3.73), by Auburn Gear

Part# CH25803

Mfg# 542033

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SAVE: $47.96 Retail: $527.95

OPGI Price: $479.99


Brand: Auburn Gear
Part Type: (P) High Performance, designed to improve performance
Years: Sold As: EACH
2015 Chevelle Catalog Page: 271
2016 Chevelle Catalog Page: 280


  • NOTE1: Only high-quality, Non-Synthetic 80W90 GL-5 spec gear oil, treated with GM or Ford limited slip additive—aka friction modifier—must be used with Auburn differentials.
  • NOTE2: These high-performance items are not eligible for any further discounts or promotional pricing.

Auburn's torque-sensing, limited slip differentials (LSD) use an innovative cone-shaped clutch, which engages the differential case coupled to a beveled side gear providing maximum traction. When the LSD senses one wheel spinning faster than the other, the cone clutch engages tighter and, through the use of springs and their preload, equalizes the torque bias to each wheel. The Auburn LSD's are available in two versions: One is the “Pro Series” for ultra-high-performance applications. The “High-Performance Series” has a standard spring preload for stock-type street use. The Pro Series uses a much higher spring preload for instantaneous torque-sensing traction.

High-performance SERIES

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