Well I finally scrapped off the crud and found the rear end code: BB 0624G1 E. Great a dang 2.56:1 posi. The previous owner who changed the rear end from the 3.08 peg leg thought it was a 3.08 posi. At least he put multi-leaf springs in! With a slightly built 327 doing around 300HP and a munci 4 spd no wonder this thing was a little slow off of the line. I would like to go to something around the 3.55 to 3.73 range.

Question now is do I change the carrier and gears (probably $600 - $800 including labor) or do I shop for a posi 12 bolt or 8.5 10 bolt with gears closer to what I'd like? All opinions gratefully accepted!!

Chief

The 8.5 from a '72 or later Nova will be a stronger rear end and cheaper than a 12 bolt. It should handle anything your 327 can put out. The posi units for the 8.5 are not hard to find in '71-'81 Camaros and Trans Ams. All later model 8.5 gears in the full size trucks will fit it. These usually have 3.42 or 3.73 gears in them. If you want to make it stronger you can use the new Eaton posi with 30 spline axles. This will make it almost as strong as the 12 bolt.

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'69 RS/SS396 pro street
427/4spd/9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead (http://www.lubedealer.com/biggearhead)

[This message has been edited by big gear head (edited 09-27-2002).]

hey biggearhead, sorry for taking away from original post, but i have a ford 9 inch rear out of a bronco that i had redrilled for chevy bolt pattern, with 7/16 studs, and have not welded the perches on, what do you think of landrums clamp style spring seats???for 3 inch tubes only you can weld once you have correct angle or you can use the set-screw, i thought these would be great cause you wouldn't need shims to get it right, then you could weld it or if you ever draged any you could change pinion angle for optimum drag performance, anyway let me know, thanks alot
Jake

Jake,
I am not familiar with these. Is this something ised in a dirt or asphalt oval track car? Sounds like a good set up, but will it work with un paralell springs like the Camaro has?

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'69 RS/SS396 pro street
427/4spd/9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead (http://www.lubedealer.com/biggearhead)

ive got a borg warner 9 bolt posi with 3.27 an rear disc if you need it its from a 87 iroc

hey biggearhead, detroit speed and engineering has a set they sell for 53 bucks and landrum spring has some on there sight, not sure of landrum sight but, www.detroitspeed.com (http://www.detroitspeed.com) and go to rear suspension products and you will see them , i emailed them but got nothing so i will call them to ask a bit more
check them out tell me what you think
Jake
here is landrums www.landrumspring.com (http://www.landrumspring.com)
check products out and it is a clamp spring seat i believe its part # lss501, thanks again, at landrum site go to motor sports, then enter, then drag race parts/ spring seats

[This message has been edited by BBCamaro (edited 09-28-2002).]

Jake,
I looked at them and I think they would be fine if you welded them in place after you made your adjustments. I don't think I would trust them if they were just clamped in place. I have seen too many welds break and I don't think these would clamp tight enough to holt the axle tube.

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'69 RS/SS396 pro street
427/4spd/9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead (http://www.lubedealer.com/biggearhead)

thanks, so i will use set screw just to test drive toi make sure i have no vibration at cruise and then weld to axle, i think you might have to drill and tap whole which set screw would go into, this probaly would be strong enough, but i think i will weld once i have proper angle, thanks alot
'jake