Rear Disc Brake Conversion

matrix5089 · 02-05-2003

I was wondering if anyone knows a cheap way to switch over to rear disc brakes on a 88 with a 4 lug rear. Threres someone on ebay selling caliper brackets for 89.00 he says all you have to do is get rotors from a turbo coupe and calipers from a cadilac seville. Or can i get a whole set up off a lsc that has rear disc brakes from around that year? Does this have the brackets i need on it? I have to swap my rearend and my new one needs brakes so i either stay with the drums or try to find a affordable way to go with disc brakes, they look so much better with my rims, and i really dont have the extra cash right now to spring for a conversion kit.

Jarrett · 02-05-2003

The easiest and cheapest way is to find an 87-88 turbo coupe rear axle. This will give you a trac-loc rear with 3.55's (if the coupe is 5 speed), or 3.73's if it was an auto. It will also give you all the calipers and brackets you need to convert to 4 wheel disc.
If you look hard enough you will find one, and it is cheaper to do it this way than it would have cost to buy the 3.73's alone.
The TC rear is 3/4" wider per side than the mustang, but the LSC is 1.5" wider per side.

matrix5089 · 02-05-2003

Jarret do you know if the lsc brakes can be taken off it and added to my 8.8 i just bought it and dont really want to go out and buy another

Jarrett · 02-06-2003

The LSC is 5 lug though, the turbo coupe is 4.

One_Quik_Pony · 02-11-2003

The Lincoln rear is 1 1/2" wider than the mustangs, and so are the sn95s.

BackinBlack · 02-12-2003

I thought the Turbo coupes had a 7.5 rear and not the 8.8? I am I wrong?

Jarrett · 02-12-2003

87-88 Turbo Coupes are 8.8, the earlier ones are 7.5

One_Quik_Pony · 02-13-2003

The turbo coupe 8.8's are 1 1/2 inches wider, same as the lincoln.

Check for tire clearance!

Fordgazm · 03-16-2003

Quote:

Originally posted by matrix5089
Jarret do you know if the sc brakes can be taken off it and added to my 8.8 i just bought it and dont really want to go out and buy another

I would also like to know if you can just swap the brake parts . Do you need to use a different master cylinder as well ? Or a proportioning valve ?

Jarrett · 03-17-2003

I replaced the MC with one from an 86 SVO, and modified the prop valve with the motorsport plug to allow for the increased fluid required for the rear discs.

Fordgazm · 03-17-2003

But can you just take the brakes off the turbo coupe and bolt them onto your stang ?

One_Quik_Pony · 03-17-2003

Nooo, the axle shafts are longer. You can pull the axles out, of the housing, if it's an 8.8, and put axles, calipers, brackets, and rotors in your stang. Beware...it will be 1 1/2" wider now, and you will have to change the proportioning valve, at the VERY LEAST, and should change the master cylinder. Might as well swap the whole axle, unless you have oodles of money tied up in gears and lsd (not the drug).

In case you are interested, the route I am taking is using the Lincoln MKIIV rotors and calipers (5 lug), and flipping the mounting brackets around to compensate for the wider axle.

Fordgazm · 03-17-2003

Wont work for me then cause I have a LOT of $$$$ in my rearend already just put in pro 5.0 3.90 gears , an eaton posi , moser 31 spline 4-lug axles and moser c-clip elims . I was just wondering about the swap . Thanks for the help/info anyways .

One_Quik_Pony · 03-17-2003

I was thinking, you should be able to use the MKIIV calipers and brackets, flip the brackets over to make up the 3/4" (the lincoln is 1 1/2" wider on each side), and use the appropriate diameter 4-lug rotor.

I think that might work!

Or just let loose with some $$ and get the motorsport kit...after building that rearend, it would be a drop in the bucket!

Fordgazm · 03-17-2003

Quote:

[i]Originally posted by One_Quik_Pony

Or just let loose with some $$ and get the motorsport kit...after building that rearend, it would be a drop in the bucket!

[/b]

Yea but that would take away from my stroker fundage ! What 4-lug rotors would work ? off of what ?