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Old 06-19-2014, 12:05 AM   #15
Chevy3+3
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Join Date: Oct 2013
Location: Winfield KS
Posts: 489
Re: 77 gmc k3500 crew

Quote:
Originally Posted by 4x4k30 View Post
I used a oem turbo 400 203 adapter it has to be milled a little in the front of the adapter for the 205 case to bolt up .also if you use a 4l80e transmission out of a 2 wheel drive the rear output shaft has to be cut off about 2 inches so the 205 case will bolt up
What had to be milled exactly on the 400/203 spacer? Also what did you use for a computer to control the transmission? What harness shop did you use?
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88' Chevy V30 3+3 4x4 Dually 454 TBI/NV4500/NP205
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