Lightning conversion

TwinTurbo4vGT

Slowest GT alive :)
Established Member
Joined
Jan 31, 2007
Messages
10,890
Location
Staten Island, NY
what 4r70w trannies are you using? Your wasting money if you used Pre 2000 transmissions as those suck ass, 2000-up 4R70W trannies handle 650hp no problem.
 

Brahmus

SVT Cajun
Established Member
Joined
Apr 28, 2005
Messages
250
Location
Delcambre, LA
what 4r70w trannies are you using? Your wasting money if you used Pre 2000 transmissions as those suck ass, 2000-up 4R70W trannies handle 650hp no problem.

I've been running a rebuilt 99 4r70W with 14+psi into 38x15.50R20 tires for 45+K miles without issue. They can be built to handle it. You just have to do your homework.
 

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