This is the posi diff. It has to be a posi or else it would never handle the nitrous or the rock crusher. I don't fool around. When I'm catwalking I ... Show morewanna make sure I'm gonna go in a straight line. Not catwalk in circles or something dumb like that. This truck makes so much power I can even catwalk in reverse, so the posi diff has to be used.
Next mods to come will be another set of 4 bolt mains for more power, and bore the intake .30 over. If I have enough money I might bore the distributor .60 over, but that would be pretty much overkill. We'll see. I heard that if you bore the spark plug holes out for bigger spark plugs you can make about 50 more horse to the wheels. I think I can do better than that since my rock crusher is getting bored over soon. I'll also have to beef up the front suspension from all the weight of the truck coming down after a high speed catwalk.
UPDATE: I just got a new forged crank and 3/4 cam and the truck has so much power it scares me. I was racing this f-150 and the front end started to lift and I couldn't steer, and the guy in the f-150 got scared and forfeit the race. It's not even fun anymore, the truck has so much power they won't even let me run it at the track, so I might sell it or just park it in the bush. Show Less
This is my 1985 GMC Wrangler the day I got it for 500 bucks. It had a 305 v8 and a 700r4 auto trans. That has since changed.
It's now the Wrascal. I put ... Show morea 454 chevy motor in it, and one of those rock crusher 4 speed transmissions. The crank is bored .30 over. The cam is bored .60 over. The Holley 750 cfm carb is bored .30 over. It catwalks. It's got those 4 bolt mains, and it runs on nitrous. The 4 bolt mains alone add about 350 horse I think.
I tinted the windows double 5% and put Cragar rims on it for that old school look. I had to lock the sliding rear window because girls kept jumping in the box and trying to climb in through the window. It's those 4 bolt mains, I just know it. It hooks better anyways if there's 5 or 6 girls sitting in the box, if they could get in the cab all I'd do was spin. They usually roll up against the tailgate once the truck starts catwalking, unless they hold onto the front of the box. They keep coming back for more, though.
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