Home Brew 12" Brake Rotor Install

Humvee modifications, sugestions, and ideas, official MWO's and unofficial field mods

Moderator: Kurt Lesser

Post Reply
User avatar
dilvoy
G-Lieutenant General
G-Lieutenant General
Posts: 5888
Joined: Tue May 18, 2004 5:28 pm
Location: San Francisco, Ca.

Home Brew 12" Brake Rotor Install

Post by dilvoy » Wed Dec 10, 2008 6:48 pm

Here are some fotos of the installation of the 12" Humvee Brake Rotos onto the front end of my "Classic" Humvee. They can't just be installed without some work, because they will contact the front of the rear of the two Forward Frame Crossmembers. On my Humvee, the Differenteal needed to be spaced 3/8" forward to stop any interfereance problems with the Rotors. I did this by making some spacers to use at the Pinion end of the Differential and by slotting the mounting holes of the supports that the Diff Brackets attach too. I made some reinforcment plates to support that area as well. I then had a bit of a problem installing the Left Front Brake Caliper. It just barely woulden't slip into place, because of interfearance with the back side of the Forward Frame Crossmember. I fixed this by pulling out the trusty old grinder and removing the raised boss that is part of the casting of the the caliper. This boss extends further out than the main body of the Caliper so I'm not worried about any diminished strength. The Right Hand Caliper had plenty of room because of Differentials angled positioning.


Overall foto.
Image

Showing Spacers at Pinion of Differential.
Image

Tight clearance at front face of rear crossmember and rotor.
Image

Showing caliper
Image
George D. Paxinos

M998's
M1044
M1123A2

User avatar
STUDENT-DRIVER
G-Brigadier General
G-Brigadier General
Posts: 2354
Joined: Sat Jul 22, 2006 9:18 am
Location: Germany
Contact:

Post by STUDENT-DRIVER » Thu Jan 08, 2009 11:08 am

What is that additional plug on the horn wiring harness for?

Image
I break it, I fix it!
Image

http://youtube.com/user/STUDENTDRIVER123" onclick="window.open(this.href);return false;

Playmate of the month April 2011 (HUMMER CAL.)

User avatar
dilvoy
G-Lieutenant General
G-Lieutenant General
Posts: 5888
Joined: Tue May 18, 2004 5:28 pm
Location: San Francisco, Ca.

Home Brew 12" Brake Rotor Install

Post by dilvoy » Fri Jan 09, 2009 12:14 pm

I don't know what that extra wire is for yet. It is part of the A2 main body harness so it must have a usage. When I power up the vehicle I'll be able to figure out if it is a ground or a hot wire and when it may be hot.
George D. Paxinos

M998's
M1044
M1123A2

User avatar
STUDENT-DRIVER
G-Brigadier General
G-Brigadier General
Posts: 2354
Joined: Sat Jul 22, 2006 9:18 am
Location: Germany
Contact:

Post by STUDENT-DRIVER » Fri Jan 09, 2009 12:39 pm

I have a ECV (A2) harness too but there is no third wire.
I break it, I fix it!
Image

http://youtube.com/user/STUDENTDRIVER123" onclick="window.open(this.href);return false;

Playmate of the month April 2011 (HUMMER CAL.)

User avatar
J.Rhapsody
G-Sergeant
G-Sergeant
Posts: 38
Joined: Mon May 01, 2006 10:52 am
Location: Louisville,KY
Contact:

Re: Home Brew 12" Brake Rotor Install

Post by J.Rhapsody » Tue Aug 04, 2009 2:25 pm

I didnt know they had inboard brakes.
Jax Rhapsody his life as a...
http://rhapsodiclaviathan.blogspot.com" onclick="window.open(this.href);return false;
Image

libbster29
G-Lieutenant Colonel
G-Lieutenant Colonel
Posts: 1064
Joined: Sun Sep 20, 2009 6:04 am
Location: MARYLAND

Re: Home Brew 12" Brake Rotor Install

Post by libbster29 » Sun Jul 31, 2011 10:15 am

can you use the old calipers on these 12" rotors??? or do u have to use the new 12k ones?? i my frame has the 12" rotors and brackets but no calipers..

User avatar
STUDENT-DRIVER
G-Brigadier General
G-Brigadier General
Posts: 2354
Joined: Sat Jul 22, 2006 9:18 am
Location: Germany
Contact:

Re: Home Brew 12" Brake Rotor Install

Post by STUDENT-DRIVER » Sun Jul 31, 2011 12:05 pm

You can use the same they fit…
I break it, I fix it!
Image

http://youtube.com/user/STUDENTDRIVER123" onclick="window.open(this.href);return false;

Playmate of the month April 2011 (HUMMER CAL.)

camoyj7
G-Sergeant First Class
G-Sergeant First Class
Posts: 75
Joined: Tue Jan 07, 2014 4:08 pm

Re: Home Brew 12" Brake Rotor Install

Post by camoyj7 » Mon Sep 05, 2016 6:34 am

What caliper brackets did you use?

User avatar
86humv
G-Major General
G-Major General
Posts: 2651
Joined: Sat Aug 20, 2005 12:54 pm
Location: Texas

Re: Home Brew 12" Brake Rotor Install

Post by 86humv » Mon Sep 05, 2016 7:24 pm

If he has 12" brakes, then he used the bracket in upper area....lower one is regular 10".
Image
86 Hmmwv
Lots A parts
M101A2 trailer
M1102 trailer

Post Reply

Return to “Humvee Modifications”

Who is online

Users browsing this forum: No registered users and 3 guests