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Old 08-19-2009, 08:38 PM   #4
chevy454's Avatar
Drives: '69 Yenko Camaro - 11.73 @ 118
Join Date: Aug 2009
Location: Missouri
Posts: 178
Is the 6L80 similar to the 4L80? Ie, does it take the same parts to upgrade them both? I have a buddy in Michigan that did R&D on transmissions for Borg-Warner (until he was layed off last month) so he knows all the GM trannies in/out and has built race trannies of all breeds on the side for years...
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