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Part fits the following years:1971, 1972, 1973, 1974, 1975, 1976, 1977

Auburn Gear

1971-77 Chevelle Differential, ECTED

Part# C240039


Mfg# 545003

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SAVE: $75.96 Retail: $835.95

OPGI Price: $759.99


Part Type: (P) High Performance, designed to improve performance
Years: Sold As: EACH
2017 Chevelle Catalog Page: 535
2018 Chevelle Catalog Page: 464


’71-77 Chevelle and El Camino

Get the best of both types of differentials

  • NOTE1: This high-performance item is not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item is SPECIAL ORDER and will be drop-shipped from the manufacturer. more info

ECTED, the dual-purpose differential. It stands for Electronically Controlled Traction Enhancing Differential. This is the most advanced differential available today; in normal driving situations it acts like a standard limited slip differential, but when the switch is flipped to "on", the advanced electromagnet is activated and it turns the differential into a full-on locker style differential. This is outstanding for a dual purpose street/strip vehicle, because in normal street driving it's a regular cone/clutch-type limited slip, while at the track you flip the switch on and it acts like a locker with equal power to both rear wheels at all times, no matter what. Leave it to Auburn to come out with this heavy-duty, advanced ECTED differential for Chevrolet rear ends.

Fits 10-bolt with 8.5"/8.6" ring gear, 2.73 and up gears, with a 28-tooth Side Gear

Make & ModelYear RangeApplication Details
Chevrolet Chevelle1971-1977
Chevrolet Malibu1978-1988
Chevrolet El Camino1971-1977
Chevrolet El Camino1978-1988
Chevrolet Monte Carlo1970-1977
Chevrolet Monte Carlo1978-1988
Buick Regal1983-1987
Buick T-Type1983-1987
Buick Grand National1983-1987
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