rear disc brakes

Moderator: Moderators

Re: rear disc brakes

Postby 80 MONZTA » Wed Nov 04, 2009 12:27 am

I guess the pic kinda distort's the rotor, it is a 2 wd rotor. I hope it is as the rear it's off of measures 54 1/4" wheel mounting surface to wheel mounting surface with the rotors on. I paid more for it too, cause they are kinda rare to find. Rotor is 2 1/16" from where wheel mounts to where the brake pad touches.
LeRoy
1980 Monza, 305/Th350 removed for LS1/T-56 swap, can't wait to :burn: My Project
User avatar
80 MONZTA
 
Posts: 734
Joined: Mon Jun 26, 2006 3:48 pm
Location: Iowa

1980 Chevrolet Monza 2+2


Re: rear disc brakes

Postby spencerforhire » Wed Nov 04, 2009 6:58 am

I've just re-read this entire thread(for the 2nd time), and I'm still confused; are the rear calipers and their brackets from a 4wd S-10 the same as he ones on a 2wd? I was trying to buy a rearend 300 miles away, and initially was told it was 2wd and I could have it for $100; now I find out it's in a 4wd and the price has gone up to $200. The rotors are rusty anyway, so I might be able to get just the calipers, but without the e-brake backing plates, I'm guessing it's not worth it.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
User avatar
spencerforhire
 
Posts: 2442
Joined: Mon Jul 03, 2006 9:02 pm
Location: Halifax, Nova Scotia

1972 Chevrolet Vega Hatchback

Re: rear disc brakes

Postby cosworth0135 » Wed Nov 04, 2009 8:24 am

the brackets are the same, as are the calipers and the dust covers ,,the axles are different and so are the rotors, look for a pull your part spencer they would be cheaper, you can't use disc axle shafts, and if all you find is 4wd's you don't need to pay for the rotors either, that way you only pay for what you can use, the calipers,the mounting bracket(the one bolted to the housing with 4 bolts), the dust covers(sheet metal backing plate) , the caliper bracket (2bolts hold it to mounting bracket an holds the caliper) I'm not certain on the axles but from measurements it looks like I will still use the 2 wd drum axles.I can't get to my pick your part till tomorrow.I just noticed you were north of the border.If I was you I would wait for me to get the axles sorted out before you purchase those but the other parts carry the same part numbers for 2 and 4 wd and you will be using 2wd rotors,Timmy
i currently drive a geo metro,insert silly joke here,, but i'll pass you while your getting gas
If you don't have time/money to do it right the first time,how will you have time/money to do it again. Timmy
User avatar
cosworth0135
 
Posts: 850
Joined: Tue Jul 14, 2009 11:36 pm

Re: rear disc brakes

Postby cosvega76 » Wed Nov 04, 2009 10:07 am

I've been doing my own research for a while and have been watching this thread. I'm interested in seeing one of these S-10 setups actually installed on the vehicle. From what I have been finding, most any caliper installed with an OE-style "deep" rotor - one with a height of around 2 - 2-1/2" - on a stock-width axle will have a clearance issue with the stiffener support straddling the unibody above the axle. I see, Nic, that you have removed yours, but it looks like you have fortified the area somewhat.

I have been looking into Baer's Iron Sport setup. It's basically the '99-'04 Mustang Cobra :shock: rear disc kit from Ford Motorsport with the correct mounting bracket of Baer's design to fit the axle, along with redrilled rotors. I was going to substitute rotors from an '05 and newer Mustang, which are really shallow, to gain some more clearance for the chassis and shock absorber. Maybe it will be a winter project to see how it all fits together.

Chuck
cosvega76
 
Posts: 2739
Joined: Mon Jul 03, 2006 8:36 am
Location: Moscow Mills, MO

1973 Chevrolet Vega GT

Re: rear disc brakes

Postby cosworth0135 » Wed Nov 04, 2009 4:11 pm

the 2wd drum axles are still 1/8 short so I am gonna run a 1/8 wheel spacer between the disc and axle,it ill leave the disc in the right spot and is cheaper than moser custom axles, any ideas?Moser axles are $315 a set what ever length you need
Last edited by cosworth0135 on Fri Nov 06, 2009 3:16 pm, edited 1 time in total.
i currently drive a geo metro,insert silly joke here,, but i'll pass you while your getting gas
If you don't have time/money to do it right the first time,how will you have time/money to do it again. Timmy
User avatar
cosworth0135
 
Posts: 850
Joined: Tue Jul 14, 2009 11:36 pm

Re: rear disc brakes

Postby NixVegaGT » Wed Nov 04, 2009 4:19 pm

This is great. Thanks guys. I'm not going to be able to weigh my rotors/calipers for a day or so. I'm betting it's pretty close though. The rotor feels pretty heavy.
- Nic '73 Vega GT "DogBoxx" Batwing LS1
http://www.cardomain.com/ride/2357894
User avatar
NixVegaGT
 
Posts: 2196
Joined: Sat Nov 11, 2006 2:24 am
Location: Minnesota

1973 Chevrolet Vega GT

Re: rear disc brakes

Postby hammerdown7 » Wed Nov 04, 2009 4:58 pm

cosworth0135 wrote:the 2wd drum axles are still 1/4-3/8 short so I am gonna run a 3/8 wheel spacer between the disc and axle,it ill leave the disc in the right spot and is cheaper than moser custom axles, any ideas?


Will this still allow the disc to be hub centered or will it be lug centered?

Dick
User avatar
hammerdown7
 
Posts: 3805
Joined: Mon Jun 26, 2006 7:53 pm
Location: Clawson, MI

1976 Chevrolet Vega Cosworth

Re: rear disc brakes

Postby cosworth0135 » Wed Nov 04, 2009 5:13 pm

it would be lug centered is that bad?
Last edited by cosworth0135 on Fri Nov 06, 2009 3:13 pm, edited 1 time in total.
i currently drive a geo metro,insert silly joke here,, but i'll pass you while your getting gas
If you don't have time/money to do it right the first time,how will you have time/money to do it again. Timmy
User avatar
cosworth0135
 
Posts: 850
Joined: Tue Jul 14, 2009 11:36 pm

Re: rear disc brakes

Postby hammerdown7 » Wed Nov 04, 2009 5:23 pm

From an experience point of view I don't know but when I put larger brakes on my Fiero the supplier said to make sure to put the hub-centering rings on. The Fiero isn't finished to the point of driving it yet. Maybe someone else has some experience.

Dick
User avatar
hammerdown7
 
Posts: 3805
Joined: Mon Jun 26, 2006 7:53 pm
Location: Clawson, MI

1976 Chevrolet Vega Cosworth

Re: rear disc brakes

Postby cosworth0135 » Wed Nov 04, 2009 5:43 pm

Moser engineering said don't worry about the spacer because it would all be sandwiched together and held in place from the force of the lug nuts :D
They bolted right up just as I thought so here goes a parts list, please bare in mind that this was done to a spare cosworth housing and i am awaiting the final parts to arrive (5/16,3/16,and 1/8 inch wheel spacers) so no drive time involved
parts i used:
s-10 series disc brake mounting bracket, bolts to housing w/ 4 bolts 2 or 4 wd ok X2
" " dust cover/ e brake shoe, 2 or 4 wd ok X2
" " caliper bracket, bolts to mounting bracket w/2 bolts 2or 4wd ok X2
" " calipers, 2 or 4wd ok X2
" " 2 wd Rear rotors they are 43.99 @ autozone no core charge look for a 2001 2wd s-10 blazer
" " 2wd drum brake axles 9/16th" too short (won't reach the rotor)I might add here your gonna need longer studs too still researching this though will add what I used later(I used 1/2" longer wheel studs from local NAPA, pretty cheap)
" " 9/16th inch wheel spacers ( measure yours before purchasing they are available in 1/8,3/16,1/4,and 5/16 for less than 12 bucks via ebay)X2
" " wheel studs approx half inch longer napa in my area has best selection but autozone has them too 1.99-2.49 each X10
" " Disc/ Disc master cylinder 2 or 4wd ok,kinda pricey without the core I pulled one from the bone yard and there were 3 others there too
Now what i know that doesn't work 4wd rotors,disc axles of either(2wd too short to get the C-lip in 4wd too long) i will add more when I put them on the car, on my car the top bolt holding the caliper on on the drivers side will need some cleareance I am going to use an adjustable panhard bar to pull it over about 1 inch but a holesaw and a sawzall would work to (drill hole, cut bottom out to look like an upside down U ) but it's 3 layers of metal gonna take a minute to do
Last edited by cosworth0135 on Wed Feb 17, 2010 8:49 pm, edited 4 times in total.
i currently drive a geo metro,insert silly joke here,, but i'll pass you while your getting gas
If you don't have time/money to do it right the first time,how will you have time/money to do it again. Timmy
User avatar
cosworth0135
 
Posts: 850
Joined: Tue Jul 14, 2009 11:36 pm

Re: rear disc brakes

Postby monzaaddict » Fri Nov 06, 2009 11:31 am

look halfway down for blazer disc swap info. looks like there is a spacer between disc and axle

http://h-body.org/dave/Building%20the%2 ... H-body.htm

gary derian's email iis gderian at cybergate.net

he is also on the yahoo message boards http://autos.groups.yahoo.com/group/cos ... ages/14620
monzaaddict
 
Posts: 2599
Joined: Sun Jul 02, 2006 3:04 pm

Re: rear disc brakes

Postby cosworth0135 » Fri Nov 06, 2009 3:12 pm

Thats where I have to place my spacer too,I have to do this because the axle comes up short
i currently drive a geo metro,insert silly joke here,, but i'll pass you while your getting gas
If you don't have time/money to do it right the first time,how will you have time/money to do it again. Timmy
User avatar
cosworth0135
 
Posts: 850
Joined: Tue Jul 14, 2009 11:36 pm

Re: rear disc brakes

Postby 454spyder » Tue Nov 10, 2009 11:32 pm

I have a monza rear narrowed for mini tubs with 2000 SS camaro brakes and zexel torsion 3.23 diff complete with moser axles. Its been sandblasted and painted satin black. Perfect condition

ready to ship for $500

Todd
Todd Allen
'77 Monza Spyder
7.4L EFI, Glide, T-Brake, Wet NOS, Mini-tubbed, and on and on and on...
http://www.cardomain.com/ride/2035660
User avatar
454spyder
 
Posts: 274
Joined: Fri Oct 27, 2006 1:07 am
Location: Houston, TX

1977 Chevrolet Monza Spyder

Re: rear disc brakes

Postby cosworth0135 » Tue Nov 24, 2009 11:29 am

I have the disc brake rear set up on my 76 wagon and I will need minor clearancing on the drivers side for the top bolt head holding the caliper to the bracket if I had an adjustable panhard bar I could center the housing and not have a problem at all. As my housing sits about an inch off center to the passenger side. The actual caliper doesn't contact the brace mentioned, I will try to upload some pictures this evening but the swap does work and to date I have total of $211 dollars invested in it(including the $43.99 Rotors and $19.99semi metallic brake pads from autozone), used all GM stuff thats off the shelf and didn't fab anything total spacer (between the axle face and the disc rotor) was 7/16th was perfect for my stuff but you should measure your own and the rotor does catch just a little of the centering hub on the axle. I used 1/2 in longer wheel studs available at my local NAPA for a buck or so each,good luck if you do it It can be a reasonable swap for not so much money. Timmy
i currently drive a geo metro,insert silly joke here,, but i'll pass you while your getting gas
If you don't have time/money to do it right the first time,how will you have time/money to do it again. Timmy
User avatar
cosworth0135
 
Posts: 850
Joined: Tue Jul 14, 2009 11:36 pm

Re: rear disc brakes

Postby 454spyder » Sun Nov 29, 2009 12:49 pm

Mine required clearance also. I cut a notch into the "frame rail" or inner wheel tub.
Todd Allen
'77 Monza Spyder
7.4L EFI, Glide, T-Brake, Wet NOS, Mini-tubbed, and on and on and on...
http://www.cardomain.com/ride/2035660
User avatar
454spyder
 
Posts: 274
Joined: Fri Oct 27, 2006 1:07 am
Location: Houston, TX

1977 Chevrolet Monza Spyder

PreviousNext

Return to Suspension, Steering, & Brakes Tech

Who is online

Users browsing this forum: No registered users and 5 guests