what is the easiest rear swap for my 83. my current rear seems to be doing ok but i would like to get disk brakes and something strong enough for my current 400 to 425 hp engine. the engine will slowly increase in power as time goes on but i dont want to keep upgrading. thanks.

 

just installed a 12 bolt with 12" lt-1 rear discs, lt-1 alum. rear calipers and the lt-1 rear caliper brackets even bolted right up!

 

how did it work out with the torque arm. and the coil springs. did the LCA's bolt up?

 

You could find a late 80's 9 bolt with disk brakes and do a direct swap. It's stronger than a 10 bolt but parts are more expensive.

Using a ford 9" or chev 12 bolt means buying an aftermarket diff so that it can be a direct bolt-in. A complete diff is around $2000.

 

thanks for the help

 

I bought an already build rear out of the paper, cut off the old brackets and welded on the LCA brackets, coil spring perches but had to fabricate a bracket for my spohn adjustable torque arm. I can e-mail you some pics if you give me your address. Monica

 

its: camaro_1983_383@yahoo.com

Thanks alot. Also, to everyone with a 9-bolt, i am unfamiliar with them but i was looking through summit, jegs and year one and i cant find different gears for them...???

 

Here you go www.9bolt.com

Miles
Diff Solutions
www.9bolt.com

 

Go to www.amazingmechanical.com for another solution to the stock little diffies. Stronger housing, gears, posi, axles, yoke and cheaper than a 9" or 12 bolt and on go your brakes, no probs EEE

 

if you use a factory disc brake setup such as a 9-bolt rear, beware that due to the e-brake levers and what not, a 15 inch wheel will NOT fit on your car....so if you plan to do alot of drag racing and what some good sidewalls on your slicks, use an aftermarket setup that will clear or stick with the drums

 

How much do amazing mechanical 12 bolt rears cost?

 

Diffs come complete with tubular torque arms. The long style complete is $1850, the short-arm style is $2100 (and includes the cross-member needed to install it). All of our diffs are shipped as complete as possible for ease of installation, and accept all factory hardware

 

hey ian, is that 1850 canadian? cause if it is my check is in the mail lol, thats only 1200 american....

im just kidding, but for real,

how much would it cost for no torque arm provisions? and can you order it with any ratio, axle, and diff (i.e. posi, locker) combo you want?

 

You need to tell me what it is you are trying to do if you don't want the torque arm. I have put together the best 'bang for buck' combo that I could--not the cheapest, just the best. So exactly what do you want to change? You don't want the big axles, the posi, what? The only thing that I will change is ratio, unless you are looking for a spool,etc. The standard ratio I offer is 3.73 because that is what works best, typically, with a built engine and an over drive. Stocker engines and blower-engines can use a 3.42 pretty comfortably, but not many combos need more gear (remember your tire height). More than 3.73's and you're starting to blow off even a slick! Anyway, tell me what you are trying to accomplish and I'll work it out for you...we do aim to please! EEE
USD Price

 

if you read my signature below you will find that my car does not have a torque arm, the pinion angle is positively determinded by the south side machine lift bars (unreal traction)

The lift bars have their own cross member, and are welded to the rear axle housing, therefore eliminating the need for the torque arm. i have a pic of this below

the cam in motor is so radical that it REQUIRES 4.10s or deeper to operate within the powerband during shift at the race track.....it makes best power between 4400 and 7000rpm, the cam has .640 lift intake and exhaust and has more than 300 deg of duration.

the car has 3.73's in it now and it drops the motor out of the power band when its shifted (tremec tko 5-speed) the 10 bolt rear has richmond 3.73's, an ultimate 7.5 girdle cover, a power trax locker, and a strange c-clip eliminator kit. the car hooked up great on slicks for several passes until the axle snapped in two. the rest of the rear is fine, but if i put bigger axles in it, then the gears will break etc etc