Need help please!! Narrowed rearend.

[01somta]

What is the correct order of narrowing you rearend? I have my wheels and tires (18x12 5.25 BS) mounted and balanced. Do I need to have my brakes to ensure that there is no suprises after I have the rearend built and brakes put on. I will be using the 12.2 willwood setup.
Dustin

[Apogee]

The only thing outside of the axle shafts are the rotors (besides the wheels)...you know what brakes you intend to run, so call Wilwood and ask how thick the hat of their rotors are. Most of the Wilwood stuff I've worked with have been right at .250". This equates to being roughly 1/8" wider than a drum setup per side.

[01somta]

The only thing outside of the axle shafts are the rotors (besides the wheels)...you know what brakes you intend to run, so call Wilwood and ask how thick the hat of their rotors are. Most of the Wilwood stuff I've worked with have been right at .250". This equates to being roughly 1/8" wider than a drum setup per side.

I guess if it is only 1/8" per side then if it is too close then I could just role the fender lip.

[ProdigyCustoms]

Your actual width of you Wilwood rotor on the set up you are buying is 3/16", actually it is .18 which is a teenie under 3/16" The shop simply needs to mock the tires in the exact place they will ride being certain to measure front and rear on the tires to be sure they are not toed in or out, and are sitting square in the openings. Then measure between the hubs, deduct 3/8" for your rear flange to flange and you will be dead nuts. The next trick will be sure the axle has the proper offset for the brakes, or vice versa. If you are narrowing your existing rear the should try to set the axle to flange distance at 2.50". Or if you buying a new rear, we can dial all that in for you.

[ProdigyCustoms]

LOL, Is this your order I just got? Did not coordinate screen names and e mails.

[01somta]

LOL, Is this your order I just got? Did not coordinate screen names and e mails.

sure is

[01somta]

Your actual width of you Wilwood rotor on the set up you are buying is 3/16", actually it is .18 which is a teenie under 3/16" The shop simply needs to mock the tires in the exact place they will ride being certain to measure front and rear on the tires to be sure they are not toed in or out, and are sitting square in the openings. Then measure between the hubs, deduct 3/8" for your rear flange to flange and you will be dead nuts. The next trick will be sure the axle has the proper offset for the brakes, or vice versa. If you are narrowing your existing rear the should try to set the axle to flange distance at 2.50". Or if you buying a new rear, we can dial all that in for you.

If they used aerospace rotors then that should get us pretty close, it may be off by a hair. Even if it is the whole 3/16" per side, I should still be able to roller the fender lip to make up the difference if needed. I know for sure the offset is 2.50". Is this theory ok?

[ProdigyCustoms]

Yeah, I cannot imagine the difference in AeroSpace and Wilwood thickness is enough to sweat. But I do not have a clue what the Aero Space thickness is, so I would suggest you have them measure their rotor they used.