84-87 12" Corvette Brake Swap... (Page 11/28)
1986GTV8 MAY 06, 02:48 PM
Yes, it looks like that is what it is going to take.

I just presumed that tohers that did the swap would have remembered.

Thanks.
Steven Snyder MAY 06, 03:38 PM

quote
Originally posted by 1986GTV8:

Yes, new rotors.

I guess that I have a 50/50 chance of getting it right the first time.

SO, just what is the diffrence between the front and rear rotors?

There must be as we are asked to get both front & rear rotors. Hmmmm.

John



Difference is ~7mm of offset. The front rotor offset is higher (the rotors are further toward the center of the car).
1fastcaddy MAY 16, 11:32 AM
bump

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85 black gt-being converted to isuzu and duke
85/86 2m4-parts car to swap isuzu into gt

1986GTV8 MAY 25, 09:48 PM
Thank you Steven Snyder. A (+) for you.

I hope that this info helps others doing this swap.

John
bubbajoexxx JUL 10, 10:24 PM

quote
Originally posted by HellYes:

Rear adapter


This drawing is incomplete. Anyone have the rest of the dimensions?

One if these 2 dimensions are needed to make a part from this print.




the piece is 7 .125 long
bubbajoexxx JUL 10, 10:26 PM

quote
Originally posted by kru:

This is an EXCELLENT thread. There are a couple other good threads as well. I have read and re-read them many times. I'm certainly not trying to knock any of them, but I do feel like a more complete parts/advice document is in order. Something that can be printed out for parts sourcing, if nothing else.

I spent the last couple hours putting together the following document regarding this brake upgrade. There are still several question marks that I would like to fill in, so if anyone can supply the answers, that would be great. I'd especially like to hear from some of you who have performed this upgrade. Especially if I've got anything wrong here. I'd like to update this document and have it available for people wanting to undertake this project. (Even though its not car radio related, I may even find a place to 'hide' it on my website: www.ReplacementRadios.com )

I think this particular thread is the best 'build' thread I've seen, so I don't plan to go into the step by step build process but, rather, provide a more complete parts list, some brief highlights (and possible hang-ups), as well as some links to this thread and other sites of relative interest.

I've got this saved as a Word document if anyone wants it. (Yep. I can be pretty anal sometimes.) Here goes...

**************************Start of document***************************

First, keep in mind that I have not yet performed this swap, so I can't speak for the performance or safety results. In other words, just like me, you should be performing this upgrade at your own risk. This document is just a compilation of information found in various places regarding this project.

Estimated total cost = @ $800, assuming mostly new or rebuilt parts (Detailed below.)

Parts list:

New 1988-96 Corvette 12” rotors (front for front, rear for rear) Try eBay for variety.
New Fiero Store stainless steel brake lines
New 1967-80 Corvette master cylinder (Try Rock Auto for good prices.)
Qty 4: New 10mm x 1 banjo bolts (Most auto stores.)
1984–87 Corvette front calipers (O’Reilly's reman #s: 18-4183 & 18-4184)
1984–87 Corvette front brackets (GM discontinued. Part#? Try Arts Corvette for used.)
*1988–96 Corvette rear calipers for e-brake*. (O’Reilly's reman #s 18-4323 & 18-4324)
*1988–96 Corvette rear brackets (GM# 10112652. EYE12652 at Arts) for 88-96 caliper
Alternative for rear: 1984–87 Corvette rear calipers for no e-brake (Part #s ??)
Alternative for rear: 1984–87 Corvette rear brackets for 84-87 caliper (Part #s ??)
Adapters & concentric rings. See bubbajoe’s site for specs or Cheetah’s site to order.
Qty 10: Long wheel stud. Front (Rear optional) Dorman 610-323. Advance Auto 98501
Qty 8: 12M 1.75 x 30mm hex head cap screws for front. (Hardware/fastener store)
Qty 8: 12M 1.75 x 20mm hex head cap screws for rear. (Hardware/fastener store)
New brake tubing (diameter or length ??)
Hubs (Original 84-87 Fiero rotors with the ‘disc’ portion ‘turned’ off.)
New brake pads of your choice for the calipers you selected.

‘Special’ Tools needed:

tubing bender
flare tool
12M 1.75 tap
grinder
hex bit/socket for caliper pins (size?)
A 'real' jack
jackstands

‘Special’ Instructions/Notes:

Rear spindles will need drilled and tapped to 12M 1.75 (Front already 12M 1.75?)
Grind off small ‘ear’ on front edge of rear spindles.
Have Corvette rotors drilled for 5x100 bolt pattern
Custom bend and flare brake lines. (Re-use existing fittings.)
Make custom e-brake 'loop' if you use 88-96 rear calipers and want e-brake.
It’s probably a good idea to replace bearings and seals while you have everything apart.
High-temp paint recommended for calipers. (Tape off pistons first.)
Minimum wheel size is 16". (Although some 16s may have clearance problems.)
May not be compatible w/ custom tubular control arms.
For 1984 to 1987 Fieros only. (Base, SE or GT.)

Links:

Bubbajoe’s website = http://members.fortunecity.com/bubbajoexx/id215.htm
Art’s Corvette website = www.artscorvetteparts.com
Fiero Store website = www.fierostore.com
Rock Auto website = www.rockauto.com
Cheetah’s website = http://www.cheetahonline.com/j3030.html
Excellent ‘build’ thread = http://www.fiero.nl/forum/Forum2/HTML/063914.html
Informative Pennock’s thread = http://www.fiero.nl/forum/Forum2/HTML/061483.html
Great factory/OEM CD car radios = www.replacementradios.com (Couldn't resist )

-Kevin



info can be found here as well
http://www.fiero.nl/forum/Forum1/HTML/033676-9.html
fiero go fast JUL 17, 08:36 AM
Well I've almost fully finished completeing the swap, all I need to do is hook up the lines to the new master cylinder, bleed the brakes and figure out to connect the outersleeve of the ebrake cable to something. I understand how I should connect the core of the cable to the ebrake arm on the caliper, but what should I connect the actual ebrake outer sleeve to?

Matt
gryphon025 JUL 20, 02:21 AM
Just want to confirm that this swap will work on an 88 as I know that the brakes are a little different due to the different suspension.
Comealongway JUL 31, 12:50 AM
Jncomutt what brand of rotors did you purchase?
dguy OCT 27, 01:18 PM
I have a question regarding the front hub/rotor/rim fit which the photos on page one don't answer for me...

After machining off the friction surface of an old front rotor and installing the 'Vette rotor over top, does enough of the hub protrude through the rotor to center the rim properly, or does this conversion rely upon the assumption that lug nut-to-rim fit will center the rim as the nuts are tightened?