14 bolt drum + 715 springs?

[alosix]

Ok,

We've got the 14 bolt sitting under the truck. Going to finish up welding the perches on this weekend.

The backing plates look TIGHT.

Is anyone running a 14 bolt with drums on their truck?

That 14 bolt disk thread got me thinking.

Jason

Jason

[brute4c]

It has been posted several times by people playing with that swap that the drums wont clear in the rear. I think the disc setup even requires some work with the caliper angle to get it on and to clear...one member at least mounted the rear calipers upside down.

[alosix]

thanks, new search function helps out a bunch. now

What gets me is the 14 bolt we have , the drum/backing plates DO clear the springs. Not by much, but they do. I'll know better by the end of tomorrow.

Jason

[brute4c]

I remember talk of a "standard" width and a much desired 4 inch "wider" width axle...though I dont know the applications on those.

[kaiserkoski]

i have a dana 70 rear out of a 78 chevy dually and its measurements are almost identical to the factory dana 70 out of the m715. now i just need money for gears, locker, brakes, blaa, blaa, blaa. but when its done it will be nice.

[2ndA]

Spent the afternoon measuring. 14 bolt is 52" between the plates and the pads are 49.75" wide. The 715 springs/pads sit at 52.5" max. The flange width for both appears to be about the same at 55", but the 14 bolt plates roll back first from the flanges about an inch, then lumps and rolls it's way back at the outer edge to the above noted 52". Just a smaller drum/less convoluted backing plate would cure the cklearance problem entirely. Only needs a quarter inch on each side.

[alosix]

ok, that sounds like mine. Almost looks like it will fit, but likely won't. The 14bolt needed a brake overhaul anyway, and I hate working on drums

Jason