14bff rear disc clearance w/ wheels?

[87 Blue Beast]

is there anyone around here running rear disc on thier 14bff using the 3/4 ton calipers? will they clear a 15" steel wheel? i know for the front when running a d60 with 15" wheels you have to clearance alittle off the caliper... is this a problem with the rear also?

 

[smalltowncowboy]

I have the disk brake swap on mine with 15" steel wheels and no problems

 

[ratki]

Eaton 15" wheels on mine as well with no problems.

 

[shaun89]

yep, i have a 15x10" rim with 4.25 backspacing and clears fine.

 

[87 Blue Beast]

sweet, thanks alot guys. i have another question, just to clearify... with the calipers and rotors, from what i understand, you are supposed to use 2WD calipers and 4WD rotors correct?

 

[shaun89]

ya, just use front calipers off of a 1/2 or 3/4 ton 4wd.

 

[87 Blue Beast]

are the 2 and 4wd front calipers any different? the only reason im asking is because i can get a set of brand new 2wd 3/4 ton calipers for $30

 

[smalltowncowboy]

mine are 3/4 4wd rotors and calipers from the same year front axle. I also used 80's chevy chevette front rubber brake lines to go from my (self bent) new hard lines, to go to the calipers

 

[USSkoval]

are the 2 and 4wd front calipers any different? the only reason im asking is because i can get a set of brand new 2wd 3/4 ton calipers for $30

depends. I would assume the 3/4 calipers are the same between 2wheel and 4wheel, but some 1/2ton 2wd had light duty brakes with thinner rotors (and therefore skinnier calipers).

 

[Hogback Fabrication]

I'm using 1/2 ton D44 calipers on 3/4 ton front rotors (12.5").

I'm running 15" wheels with 3.5" backspacing, the calipers would hit the wheel if I had any more backspacing.

 

[87 Blue Beast]

so does anyone know for sure if the 2wd 3/4 ton calipers will work for a rear disc setup?

 

[BILTIT]

I'm using 1/2 ton D44 calipers on 3/4 ton front rotors (12.5").

I'm running 15" wheels with 3.5" backspacing, the calipers would hit the wheel if I had any more backspacing.

How bad would they hit? I have a 3/4ton and I bought the front rotors and calipers and run them on the rear with 15x10 4.25BS, light touch of the grinder was all I needed to avoid rubbing.

 

[Hogback Fabrication]

How bad would they hit? I have a 3/4ton and I bought the front rotors and calipers and run them on the rear with 15x10 4.25BS, light touch of the grinder was all I needed to avoid rubbing.

It would probably be exactly what you're describing, not tons of contact. Of course, there isn't nearly as much material in a D44 caliper as there is on a D60 caliper.

I ran 15"x8" wheels with 2.75" backspacing when I first had the disc'ed rear end, it cleared no problem.

When I put on the 15"x10" wheels with 3.5" backspacing I noticed that the caliper was close and that any more backspacing would create contact between the caliper and wheel.

 

[BILTIT]

Yup, the 60 takes alot of grinding!!!

 

[BILTIT]

2wd rotors will not work, see the link below, different part numbers.

http://www.lmctruck.com/icatalog/cc/full.aspx?Page=151


Notice how they have different calipers for the front depending on what size back brakes you have? Different brake packages?

 

[Hogback Fabrication]

Yup, the 60 takes alot of grinding!!!

1/2" bigger rotor (13" rather than 12.5") and bigger caliper means front 60's are certainly not meant to clear 15" wheels.

I've been through that ordeal a couple times now

 

[BILTIT]

No kidding, thank goodness someone did most of the grinding for me already!!

 

[87 Blue Beast]

does anyone know if you can clearance d60 calipers enough to clear 15" wheels with 4.25" backspacing?

 

[BILTIT]

I am sure you can. I can check as i have a 60 in the garage and some rims/tires. The 60 has already been clearanced and is sitting with 16'' rims on it but i will check the 15''s.

 

[BILTIT]

Some pics of my 60 that has been ground some. 15x10-4.25BS rims, the face is about 1/4'' from the sitting flat in the disc mounting face. The caliper itself should clear, might need alittle more grinding but its the mounting bracket that needs some clearancing.