I am upgrading my dana 44 to have 8 lug outers. i am using from the spindle out from an 81 k20 and i had a question about the brakes. The calipers i have are for the jd6 system and hte brake pads too. they dont seem to fit. the inside brake pad is too thick it seems and the caliper mounting holes arent as far apart as the mounting holes on the caliper bracket. should i get all the jd7 parts??? will it fit better yall think?? i was just stumped, thanks--Chad.