Help with rear disk brakes

[gdouaire]

I bought this 3.73/posi/7.5 differential and it came with an unfinished rear disk brake setup. Looks like a fourth-gen disk drake (LT-1), but I'm not 100% sure yet.

As you can see, the caliper bracket (with the two red bolts) is located in front of the wheel.

I have read about clearance issues with the chassis with this setup. Any more details on that?

Also - the bracket itself is made of a 1/4" plain steel plate that was welded to the differential. Would this be sturdy enough in your opinion?

 

[pontiacgp]

we use something like this on our circle track cars.....you can mount the caliper facing any way you want

 

[gdouaire]

we use something like this on our circle track cars.....you can mount the caliper facing any way you want

That's interesting!

Wouldnt that poentially cause bleeding issues if your bleeder is facing the wrong direction?

 

[pontiacgp]

in a street car you need to keep the bleeder on the top part of the caliper. We use brake fluid recirculators on the race car so there is no bleeders on the caliper.

I used the F body caliper bracket on my 67 chevelle rear end and relocated the holes so I can place both on the back side. I used the 1980 Seville rear calipers since they are more compact then the the F body caliper and still have the parking brake

 

[L92 OLDS]

we use something like this on our circle track cars.....you can mount the caliper facing any way you want

Pontiacgp....Where can I buy this bracket and which calipers bolt to it?

Thanks

 

[pontiacgp]

UB Machine makes them...
http://www.poske.com/detail_it.htm?groupid=1218

You can go to any circle track store and they'll have them there

 

[FE3X CLONE]

One thing to note, if you try to put the caliper on the front side of the rear end housing you're going to run into the frame. That is if you have a stock width rear that you're adding disc brakes to.
It's also very likely you make run into the frame in the rear as well. My rear frame is notched and the LS1 rear calipers were still very, very close. Shocks will have to be relocated inboard slightly as well.



Flynbye.com makes a bolt-on bracket for 11" thru 13" rear rotors using an LT1 style caliper as well.

http://flynbye.com/catalog/i182.html

 

[L92 OLDS]

UB Machine makes them...
http://www.poske.com/detail_it.htm?groupid=1218

You can go to any circle track store and they'll have them there

Thanks...I like UB machine stuff and have bought from them before.

 

[gdouaire]

Flynbye.com makes a bolt-on bracket for 11" thru 13" rear rotors using an LT1 style caliper as well.

http://flynbye.com/catalog/i182.html

Thanks for the info, very useful.

The flynbye bracket - does that clear the gbody chassis?

 

[gdouaire]

i will probably :

1) Cut/grind off that bracket the previous owner soldered to the axle;
2) I will end up locating the caliper in the rear of the axle;
3) And playing with the caliper angle (using one of these "circle track" brackets) to make it work, keeping the bleeder up;
4) This probably means I will need to interchange disk calipers L and R (?) and see if the parking brake cable will still work;