12bolts stopped being put in trucks in 1981. If you want one get one out of a pre-81 truck. I don't think I would worry about it too much unless you are planting slicks on the track. We ran a 82 truck with a 454 putting out about 450hp and sprayed 250 shot of NO2 to it and the tranny went south first. The truck wouldn't/couldn't hook the tires up. What are you doing for traction to hook all of this up?
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Chris Lucas
1973 Chevy C-10
1978 GMC Jimmy (2WD) - SOLD
1987 R10 twin turbo LS
1991 R3500 SRW CrewCab
1985 K5 diesel swapped project
1989 K5 2WD conversion w/ Vette susp Project
Captkaos Customs
73-87chevytrucks.com
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