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TH400 Swap in C4

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Old Apr 29, 2002 | 01:33 PM
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From: Volcano, HI
Default TH400 Swap in C4

I'm about to swap a TH400 into my C4 and I have a couple of questions. The trans that I found has a bolt in yoke. Can I swap out that tail section/yoke, and what should I use? Would it be possible for me to bolt in the tail section from my 700R4?

Thanks!
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Old Apr 29, 2002 | 10:29 PM
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Default Re: TH400 Swap in C4 (Mojo)

The th400 tailshaft has a different mounting bolt pattern than that of the 700r4. The th350 and the 700r4 shate the same bolt pattern and the tailshafts are interchangeable. I would suggest a th350. I installed one in my car and even with 650 hp it's still going strong. If you have to use the th400, some fab work will have to be done to get it ounted to the torque arm.
Good luck
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Old Apr 30, 2002 | 12:21 PM
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Default Re: TH400 Swap in C4 (11sec84)

The th400 tailshaft has a different mounting bolt pattern than that of the 700r4. The th350 and the 700r4 shate the same bolt pattern and the tailshafts are interchangeable.
Darn! I was hoping the TH400 would work... I just grabbed one for almost free at an estate sale. Oh well, I'm sure I can trade it off for a TH350....

How is yours built?
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