If you have rebuilt a t56 step inside

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07-07-2012, 08:31 PM

ATX-Iroc

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Car: 87 Iroc-Z

Engine: 305 tpi

Transmission: 700-r4

Axle/Gears: 3.42

If you have rebuilt a t56 step inside

I have an lt1 t56 that has a cracked adapter plate so I order up a new plate and when I attempt to put it on its too tight without any shims. I measure it up to the original and notice the hole for the input shaft bearing race is .04 shallower. Is there any other place in the transmission I can lower the input shaft by .04. The original part number for the adapter plate is 13-86-172-903-g and the new part is the same numbers but with an e at the end

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07-08-2012, 12:44 AM

jmd

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Car: `86 SS / `87 SS

Engine: L69 w/ TPI on top / 305 4bbl

Transmission: `95 T56 \ `88 200-4R

Re: If you have rebuilt a t56 step inside

1993 had a shallower bearing race pocket than 94-up.

How did you identify the trans. to the place from where you ordered it?
What 1386-xxxxxxx number is on the tailhousing tag of the trans. or top decal?