Th400/700r4 conversion 70 gto - Pontiac GTO Forum
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post #1 of 2 (permalink) Old 06-27-2015, 02:18 PM Thread Starter
 
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Th400/700r4 conversion 70 gto

I need to order a crossmember for this conversion. I believe the GTO has a
BOXED frame which dictates crossmember required but not sure. Has anyone
done this conversion? Would like to know problems that may be encountered.
Thanks for any help,
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post #2 of 2 (permalink) Old 06-27-2015, 07:12 PM
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Generally, you'll only find fully boxed frames on convertibles. A stock 700r4 doesn't have the torque handling capacity of a TH 400, so make sure you put out the coin for a tranny that's been built to stand up to ever how much torque you're making.

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