This is a giant step up from the weld on caliper bracket you have all seen that is available in 3/16" only, the difference is that this one is made out of 3/8" plate and cut for a 3.5" axle tube. The caliper is the 75-87 Chevy 3/4 ton front axle using the 8x6.5 12.5" rotor diameter, they are very easy to find and it is cheap to buy. For 6 lug applications you will have to source a rotor of similar diameter or slightly smaller, then trim the bracket down to center the pads on the rotor before welding to the axle tube. For 5x5.5 rotor application we recommend using the Ford 9" weld on brake brackets and the 11.75" diameter Bronco rotors listed under that application. This is the cleanest way to build an axle, cut off that old drum flange and weld on the bracket, no bolts to check on, lighter weight, easy mounting.
Sold in pairs.
SRW applications requires steel wheel 15" with a maximum 4" back spacing. DRW you will need at least a 17" wheel, different manufactures have different offsets so you will have to test fit to make sure there are no clearance issues
NAPA part numbers for '73-'87 3/4 ton front, 4x4, Chevy calipers and rotors:
Caliper ONLY: LH - N4674, RH - N4673 - Both of these are LATER year part numbers
OR
LH - N4597, RH - N4596 - Both of these are EARLIER year part numbers
Carl Mueller (Evansville, IN, US) | May 25th, 2017
I love these brackets it took less than an hour to have them installed and painted. I have already started planning for an upgrade on my friends truck using these brackets
Verified Buyer
Extreme Duty Parts
★★★★★5
james potter (Burnsville, MN - Minnesota, US) | June 10th, 2016
Customer service was outstanding, shipped immediately, pleasure to do business with.
These brackets have 4 times the integrity as any other big gm caliper bracket that I've looked at. Clearly the other other guys don't get that these brackets will have 2000 plus ft-lbs of torque on them with full pressure to 2.94" diameter pistons. The Ruff Stuff brackets fit the calipers like a glove with perfect clearance. This means that the caliper casting is taking the thrust load instead of the pins. Top shelf materials and quality craftsmanship all the way.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov. 