Chassis - Fiero Front Brakes to a 12" 85 corvette

 

Here they are 12 " front brakes from 85 corvette fitted to Fiero front spindles in an easy to read insturctions from Joe Grenier
Installation
Start by undoing the brake hose be sure to pinch it off with Vise Grips to keep from letting all the fuid from running out into your work area
Remove the rotor and then remove the old caliper bracket using a 19mm socket and rachet and remove the backing plate
The area I'm pointing to must be smoothed and leveled using a grinder or heavy file. This is to make a surface for the adapter to bolt to and drill out the old holes to 12mm (17/32) as the old threads are no longer used
This is a comparison of the two setups the stock on the bottom and the Vette on top the rotors are 88 and the calipers and brakets are 84 to 87
This is how the finished spindle should look after drilling and leveling out and a little cleaning
install the cut hub and new rotor then bolt the adaptor to the brake bracket as seen above using 12mmX1.75 cap screws
With the adapter and bracket together slip the pieces over the rotor in the fashion displayed in these 3 pic and the rotate it into the bolting position

Bolt it up with the same 12mmX1.75 cap screws then install the pads as you normaly would
 


Consentic rings front outside diam. 2.785 inside diam. 2.240

rear outside diam.2.785 inside diam. 2.255


drill spindels to 7/16

tap drill size 13/32 for use with the 12mm 1.75 x 30mm long cap screws

Block dimentions 1"x 2.5' x 4.5' long 7/8" thick nothing less or the adapters are no good and caliper brackets will rub this uses no washers to line things up
Bolt Spacing - Here you go boys the diamentions for the brake adapter
Newest parts to be added Large 12 inch brakes from an 85 Corvette and its is the easest brake swap any one can do if you have a drill press
These pieces are all you need to do the swap 2 consentric rings for the rotors to keep them centered
and 2 1X4.5x2.5 piece of 7/8 inch mild steel for the coliper adapter
use this link to go to my site to see more on big brakes and hub conversion to 5 X 4/34 bolt circle

http://www.fortunecity.com/skyscraper/switch/67/id20.htm

 

 

 
This entire Website is copyright © 2002-2005 by Ron Fletcher. All rights reserved.
Although my information comes from various builders and sources, if you want any information contact me. The photographs used on this site are used with permission, if you want to use any, contact them through the various links on this site. I did and you can see the results!