i have a 92 rs with drum and i have a entire 88 roc rear end with disc what exacty do i need and what needs to done to swap the rear ends i heard something about a porpatinal vale and the brake booster not sure please help

 

Some folks swap proportioning valve for one from a rear disc car to keep the right proportion of brake fluid pressure to front/rear as it should be. Alot of folks don't bother and don't have any issues. I think that the rear disc brakes require less pressure than a rear drum brake to get the same stopping power - worse case scenerio is that you'll mash the brake in an emergency and the rears will lock before the front - which is good - locking fronts means no steering.

No need to change booster. Swap that sucker in there! Probably has better gears and posi as well if it's a disc brake rear!

 

yea its 3.27s posi all right how are the brake lines that come from the body do those hook straight up to the rear since im goin from drum to disc

 

Some do, some don't - there are some differnces is brake line fiting sizes over the years - worse case is that you have to cut the end off with a small pipe cutter, add the right size fitting one side or the other, and reflare it with a flaring tool.

 

Master, no. For best brake performance, use the appropriate combination valve as there are different biases. More info can be found in the FAQ:

https://www.thirdgen.org/forums/tran...-10-bolts.html

JamesC

 

thats for 10 bolts the 88 rear end is a 9 bolt the one in 92 im pretty sure is a 9 bolt too? confused

 

You are swapping in a 9-bolt. So you will need the Proportioning valve and the Parking brake cables.

 

The braking systems between the 9- and 10-bolt are the same. If the rear in the 92 is a 9-bolt, it isn't original to the car.

JamesC