rear disc brakes

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Re: rear disc brakes

Postby cosvega76 » Wed Sep 10, 2014 8:05 am


I got the car back on the road about a month ago, so now I've had some time to evaluate the swap. I had prepared a power brake booster to use with this setup, but I hit the sweet spot with all of my brake cylinder sizing so I won't need it. :th:

I'm using standard (non-HD) late-C4 (PBR) front calipers, Windstar rear calipers and a 15/16" master. After setting the brake bias with the adjustable valve, the brakes are AWESOME now compared to what they used to be!

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Location: Moscow Mills, MO

1973 Chevrolet Vega GT

Re: rear disc brakes

Postby b_pappy » Sun Nov 30, 2014 9:29 pm

Hey guys, not sure I'm understanding this entire thread.
I see lots of great ideas, but I'm having a tough time following everything.
I "think" I want later 2wd S-10 front spindles and read end, with disc brakes all around. Do I weld my Vega mounts to the new S-10 rear end, or do I stuff those rear end gears in my Vega rear? Or will either way work?
Also, then laterin the thread it sounds like the rear calipers hit the Vega frame.
Initially I was going to use a narrowed 10 bolt, but sounds like the S-10 fits right in.
For power I'm using a 383, and a 700R4 trans. I want to use GM parts whereever I can.
Hopefully you guys can straighten me out on this.
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Joined: Mon Nov 17, 2014 9:30 pm

Re: rear disc brakes

Postby Diesel Dan » Fri Dec 12, 2014 10:43 am

So to recap the most common setup is using:
-1998-2005 S-10 rear caliper assemblies(2or4wd)
-1998-2005 2wd s10 rear rotors
-early 2wd s10 drum brake axle shafts

-2nd gen Camaro/firebird rear disc setups
-8.8" ford axle assembly

Where does the 4th gen(96-02) F-body parts fall in? Pro/cons
One thing different from the Camaro to the S10 is the bolt pattern.
S10 is 5 on 4.75"(121mm)
F-body is 5 on 118mm
2000 Chevy Classic crewcab, 6.5TD
1980 Monza Town Coupe, 36K miles
Past rides:
-1980 Monza Spyder 2.5L/4spd
-1976 Monza Town Coupe 4.3L V8/4sp
Diesel Dan
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Location: Columbia, TN

Re: rear disc brakes

Postby b_pappy » Fri Mar 27, 2015 10:22 pm

Got the rear figured out, thank you all. I used a S-10 ZR-2 rear end. It is 3.73 LSD, and uses the 8.5" ring gear and has disc brakes, plus larger wheel bearings. Turns out it is also 2" wider than a regular S-10. To fit my wheels we narrowed it 3.75" per side. The shop did a great job narrowing it and getting new axles, another shop transferred all the mounts. Fits like OE!
On to the next challenge...
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Joined: Mon Nov 17, 2014 9:30 pm

Re: rear disc brakes

Postby MonzaRacer » Wed Jun 10, 2015 11:08 pm

Yes well , as my pro- touring project Monza has been stalled way too long.
Finally got couple oversized wrist pins so can use eBay pistons, I had.
Also guy at work made me great deal onZR2 rear end, should be 3.73 gotta wait for delivery to see if its got gov loc.
BUT according to my measuring and math and using tire comparer let me see that a Corvette 18x9.5 56mm offset with 275/35/18 will fit in place of my 275/60/15 on 15x8.5 3.5 bs outlaw IIs.
Then I matched my old 225/50/15s on 15x 7 3.5 bs match up to a 215/40/17 but comparer only let's me match to an 17x8 not 8.5 wheel.
My biggest issue on front is deciding if I run spacers or decide to extend the upper and lower control arm length on the car to reduce my need for spacer/adapters.
But ZR2 axle let's me do something different. Guess I need to price narrowing some Vette wheels for up front.
Now if I decide to run 17" rears they just end up at 275/40/17, but matching wheels up tends to be hard since most Vette wheels tend to run in 17/18 sets or 18/19 etc.
But hey S10 disc conversion is pretty easy, I even have spare set of 4 WD caliper brackets, this lets calipers sit on top of rotor, where 2wd sit at 3 or 9 o'clock.
My luck is that my ZR 2 rear nets me 8.5 rear, so when my twin turbo setup is finished I got a rear end that's stronger than 7.5.
Now I just gotta save for Fays2 watts link and finish my 3/4 link conversion crossmember finished.
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Location: Burns City Indiana

Re: rear disc brakes

Postby frenchmonza » Thu Jun 11, 2015 1:06 am

Just for the info : I fitted one of those "right stuff" kit (ref AFXRD01) on a stock axle with 5-lug arms.
They are cheap, but quality is OK for the price.

Caliper position has to be upper-rear. Fits perfectly on the axle, caliper and pads are standard GM, easy to find. Brakes very strongly (even a bit too much !). Bleeding fluid procedure on this car is a pain, but this is another story.

I had to cut some steel to make them fit. When the suspension collapses, caliper would hit the barrier, behind the wheel arch (which is not very wide). So you have to make some room to ensure the suspension will work properly.
Thankfully, there is some room to cut, just watch for the panhard bar mount, left side.
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Joined: Mon May 11, 2015 1:45 am

Re: rear disc brakes

Postby vegajeff » Fri Dec 11, 2015 2:49 pm

Just curious, What parking brake cable are you guys using with the S 10 rear disk conversion? I'm going to have to wrap the cable around the axle to work.
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Joined: Mon Jun 11, 2012 10:38 am

1975 Chevrolet Vega Kammback

Re: rear disc brakes

Postby vegajeff » Sat Dec 12, 2015 2:54 pm

Posts: 4
Joined: Mon Jun 11, 2012 10:38 am

1975 Chevrolet Vega Kammback

Re: rear disc brakes

Postby 3Hz » Tue Feb 06, 2018 1:11 am

cosvega76 wrote:Those are oooooooold H-body Bilsteins. I've had them for a lot of years.

good to see an old H-body Bilstein still being used
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