[Tom]

Originally Posted by geezer#99

So you’ve got a rompin’ Stompin’ 600 horse 427 that’s not gonna want to run nicely anywhere below 2500 rpm and you want to use a tranny that has likely all the wrong gear ratios plus o/d and you wanna change the rear gear too.
If you don’t mind running around in 3rd most of the time and carry those other 3 gears for a top end run, then it might work okay.

Originally Posted by nikwho

Also figured that I could get away with lower axle gearing and have more fun in lower gears.

So yeah, he's got that figured out already.

My only thing to consider is how you'll have enough traction on a street truck to enjoy 600hp big block and super low gearing. I'd imagine you'll just burn the tires off all the time. Otherwise its a great idea! You can always go with a M series munice plus gear vendors as well.