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jdauel 04-14-2006 03:15 PM

76 Trans Am Transmission question...
I'm ordering a 400 Turbo transmission for my 6.6 L '76 Pontiac Trans Am. It gives me the option to order a 4" or 9" tail shaft. My car didn't come with a transmission so I don't have anything to go by. This is my first rebuild car and would appreciate any help.

curtis73 04-14-2006 03:44 PM

If it originally came with a 400 you can measure from the block mating surface back to the driveshaft yoke (where its polished from the seal). Compare that measurement to the overall measurements of TH400s found on this site:

If it didn't come with a TH400 originally, pick which ever one you want because you'll need to shorten your driveshaft and use a different yoke anyway.

jdauel 04-14-2006 03:54 PM

Okay, you pretty much cleared up that question...THANKS!

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