Are 960 transmissions interchangeable?

YTJOHN · Post by **YTJOHN** » 11 Oct 2018, 20:38

I'm looking for a used replacement transmission for the AW30-40/43LE unit in my '96 965. The salvage yards list the same interchange part # for all 960 transmissions: 400-59809B. However, some recyclers also say that the torque converter used pre-96 is different than the one on 96-97 transmissions. My goal is to get a tranny that's an exact swap for my car and its control module. Does anyone know whether transmissions from other model year cars will work in a '96?

Post by **jimmy57** » 11 Oct 2018, 21:02

The stall speed, also called K factor< may be different slightly but the fit and connectors are the same. I thought the difference was 94 down and 95 up though. The rear axle ratio was 3.31 on 92-94 and 3.73 on 95-98. My recollection was that the TC changed to better match trans to the rear axle ratio.

YTJOHN · Post by **YTJOHN** » 13 Oct 2018, 07:31

Thanks Jimmy57. Your explanation makes sense to me.