I believe a good 12 bolt will take quite a bit of power if it is built for it. Maybe not in a car like BJUICES but for anything BOWHAY is going to throw at it it will be fine...my car has a 12 bolt with Strange spool axles etc behind a 540. .....(Watch, now that I opened my yap it will explode first time out this spring :? ).

but are you running power adders tod? seen some 12's let go when nos is used. im a chevy guy (bow ties runnng in veins) but also know where chevys weakness"s are and i hope you have no issuses

also based on what ive read unless i read wrong yours is "built" where as one in qusetion just has axle up grade. didnt see anything about c-clip eliminators so thats also what my opinion is also going off

im pretty sure im not gonna be breakin my rear with a 450 horse 383
it has rishmond gears, auburn posi and moser axles
i know there is better stuff out there but this is how i did it
and yea i know the truck is heavy but i love it lol

REAR
 

Tod,Think about this???
If you were going to REPLACE a 10 bolt?
Would you put in a 12 Bolt?I SURE HOPE NOT!!!
I KNOW I would NOT!Thats the POINT i'm trying to get accross?
But,Then again............?
Later
G 8)

10 Bolt go boom!
12 bolt go boom!
Fab 9 = No more boom! IMHO

bowhay with the wait and shock of nos hitting if you hooking will gernade gm rearend. jmo and what ive seen

Or maybe.... you change the stall speed, spray a little later, go w/a Dana 60 if you want to keep the family the same... I don't know, my Dana 60 is still together. Here's the thing- you have a long base p/u & spraying on the launch seems hard on the rear & hard to hook up @ the same time. You can only ask so much of a basically stock suspension p/u. I am certainly no expert, but it seems there is another way of improving your launch.

now he's gotta get the engine running again to tear up the rear end ,, welcome bowhay to the never ending world of hot rodding :lol:

x2 world of racing is adictive and a vicious circle