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Here is the info on using the 3/4 ton hub with the wide drums on the outside: the proper backing plate needs 2 1/2" standoff from the flange. IMHO: given the weight of the drum, the heat generated, etc. using JB aint in the cards, weld up and cut to put the step in is doable. However...

Don, The 1 ton hub has two steps on the outside of the flange, one for the drum, (slightly larger diameter), and a second one for the wheel. The 3/4 ton hub has only one for the wheel, the centering step for the hub is on the inside. I see two possibilities here, 1--weld up and cut the...

Differences I found in housing, backing plate flange in different location on the housing, backing plate has different offset. Shaft collar extension rear bearing inside diameter different and inner bearing step in different location. Hub differences, drum flange in different location on hub...

Well guys, this won't work without lots of extra bucks. Hub inner bearing ID is different, location within the hub is different. Outer is the same. End result, hub outer face is not in the same place so a different axle would be required, and a spacer ring behind the lock ring. All in...

Couple of tid bits, my hubs had been changed over to the woodruff key retainer nut style. What a breeze to do. Seal races are worn less than a thou, can barely feel where they run after cleanup, no shims. Axle splines show only slight polish, no grooving or edging. E brake cable goes thru...

Sorry meant to say backing plate offset DIFFERENCE is 1"

Thanks War, I'll tag the links. Well I'm pooped. This stuff is HEAVY! Backing plate offset is right at 1" and as Don said earlier the backing plate is against the U Bolts when the center hits the mounting flange. Gotta move it out 1 1/8" to get the shoes to line up with the drum. That's...

Here is an update: Got the truck blocked up, one axle out and one drum assembly off. (Good thing too--shoes getting thin), step on existing hub smaller than hole diameter of wide drum--------BUT---- Wide drum on the hub that came with it, (used a couple of lug nuts to secure it), measured...

When hydroplaning brakes don't work anyway. Saw a write up about brake testing, I think here somewhere. Pressure gauges on front and rear. Part of the 'fix' for the burb maybe?? Anyway, as I remember it, F and R track to about 600 psi then the valve kicks in and the rear holds there or...

Thought I might tell you guys why I am doing this. Not as simple as "bigger brakes are better" cause that's not always true. Don't know about you guys but I have been on slippery roads with too much front brake. If you are in a turn of any kind the front end pushes to the outside. RH turn...

Yep bosses are there, both are drilled for what we would normally call 'left'. Looking at the cable routing for my 3/4, RH cable comes from left side across the diff and arcs forward and in. Should be long enough to arc back and in, if not the cable that came with is a bit longer. Haven't...

OK Don, I took the backing plates apart and thought I had a problem. As it turns out I have what we would normally think of as two of the same side. The E brake cable comes out the same direction on both plates. Apparrently, the 3 1/2" wide 1 ton brakes use a different E brake cable that...

I just looked at the pic of the two hubs, able to blow it up. Looks to me like there is a step on the outside of the flange, hopefully it just needs to be dressed up a bit.

Still early here, gotta have my coffee. Am hoping that the existing hubs have enough meat to cut the step on the outside of the flange. That's what I will look for. Gonna just pull the wheel and slip the big drums on backwards to see how they fit over the lugs and against the flange. Worst...

Made the run yesterday to pick up parts. Match turned pair of near new drums, hubs and backing plates from a '96 3500. Guy runs Precision in Redding Ca. The hubs were the same as the ones Don posted pics of. I noticed a step on the hub where the drum sits for centering the drum itself...

Yep, I noticed that too, yours looks shorter overall, might be the burb version, dunno. I should be heading out tomorrow to pick up the parts. Will pay attention to the hubs he has. He is 200 miles away so I don't want to do any running back and forth. I might not change hubs, just put the...

BTW Don, saw your sig, I have same year FJ. Whipple/AutoRotor SC with bypass and electric clutch, lift kit, 33x12's, unleaded valves, seats and guides at 200k along with full balance, aussie in rear, electric in front, disconnector links, air bags with leveler. Wife calls it the "rockababy"...

NVW is correct, besides, that would have been way too simple for the brainiacs to figure out.

Thanks Don, you know what they say about pic's. Just from "looking" the stock backing plate has only about an inch of offset. It also answers my Q about the wheel cylinder location, it mounts to an offset in the backing plate. Here is the pic of the two hubs side by side.

Per the maint. log from the PO, meticulous, brakes 34k ago, about half used except for the sticky caliper. Prolly new pins and sleeves at that time. I agree, need to check everything.