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Part fits the following years: 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971

GTO Differential, Limited Slip High-Performance Series (10-Bolt) 8.2, 3.36 & Up, by Auburn Gear

Part# G221570

Mfg# 5420113

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SAVE: $42.96 Retail: $472.95

OPGI Price: $429.99

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Brand: Auburn Gear
Part Type: (P) High Performance, designed to improve performance
Years: Sold As: EACH
2015 GTO Catalog Page: 215
2016 GTO Catalog Page: 220

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For 10-bolt

  • NOTES
  • 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 use an innovative cone-shaped clutch, which engages the differential case, coupled to a beveled side gear providing max 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, while the Pro Series uses much higher spring preload for instantaneous torque sensing traction.

Make & ModelYear RangeApplication Details
Pontiac GTO1964-1971 8.2, 3.36 & Up
Pontiac LeMans1964-1971 8.2, 3.36 & Up
Pontiac Tempest1964-1971 8.2, 3.36 & Up
Pontiac Grand Prix1969-1972 8.2, 3.36 & Up
Olds Cutlass/4421964-1971 10-Bolt, 8.2, 3.36 & Up
Buick Skylark1964-1971 8.2, 3.36 & Up
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