I am pretty sure the left one is the J-20 bracket. It appears that both have the same spacing between the caliper mount bolts. The left bracket is now with the axle in NC while the right one (which I assumed was the wrong one) is here in VA.Stuka wrote:Those plates are different for a J20, as are the caliper brackets. J20's are 8 lug and have larger front rotors.
The 6 bolt pattern for the dust guard is the same I think, as you can swap 6 lug to 8 lug outers (I was referencing the brake rotors, caliper brackets, and pads above). But the J20 3/4 ton front did have larger rotors, which would require a larger shield. But maybe its not enough to matter? Its certainly worth trying.jpswapmohn wrote:I am pretty sure the left one is the J-20 bracket. It appears that both have the same spacing between the caliper mount bolts. The left bracket is now with the axle in NC while the right one (which I assumed was the wrong one) is here in VA.Stuka wrote:Those plates are different for a J20, as are the caliper brackets. J20's are 8 lug and have larger front rotors.
I have the JB7 upgraded calipers in the garage. If they will mount to both, does that mean both will work? I know there is a potential for lateral spacing.
Maybe I will have to go hunting for a set from a K20.
Anyone know if a set from a wagoneer will work with the 3/4 ton calipers/rotors?
bingo!rocklaurence wrote:The important thing is that the 1/2 ton bracket is .5" shorter. The 3/4 ton bracket allows the use of a 1" larger rotor. I dont think a 1/2 ton bracket will allow you to run the larger rotor.
I figured somebody would know the exact size difference. I knew they were larger, just wasn't sure how much.rocklaurence wrote:The important thing is that the 1/2 ton bracket is .5" shorter. The 3/4 ton bracket allows the use of a 1" larger rotor. I dont think a 1/2 ton bracket will allow you to run the larger rotor.