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I have a J-200 Thrift side truck with 11" brakes. I also have a 5 lug Dayna 60-2 track loc rear end that I want to put in, it had 12" brakes. I built 1/2" thick adaptors for the 11" backing plate, and turned out the bore in the in the backing plate to fit the brarings. The problem I have is every thing is tight ( brakes and assorted springs) behind the axle flange to the backing plate. I want to take out the 1/2" spacer to get more working space. Has anyone downsized the 12" brakes to 11" on this axle? What parts did you use>
Try mounting the backing plates without the spacer and use a drum that's 1/2 deeper. Early 80's to 93 half ton Dodge could work, but the center register bore will need to be enlarged which is pretty straightforward lathe work. I was getting ready to mock up this setup to replace the disk conversion when my truck was hit.
Anybody who suggests ElDorado calipers has either never owned a set, is a pathological liar, or should be charged with attempted murder. They really are that bad.
Herk wrote:Anybody who suggests ElDorado calipers has either never owned a set, is a pathological liar, or should be charged with attempted murder. They really are that bad.
I have heard they are terrible to adjust, any better suggestion?
At this point I am going to try and modify some 88 ford f150 rear drums. I will need to enlarge the center bore and remove some of the inner lip on the drum. With this set I will remove the spacers I built. I also looked at dodge van/ truck drums, would be similar but I would have to remove even more on the backside of the drum lip.
I am hoping my lathe is large enough to turn the drums. I am currently building a fixture to turn out the center bore and cut the backside lip.
It looks like everything I looked at so far is going to require turning out the center bore.
I have thought about disk brakes however I am afraid disc brakes in the rear and drums in the front will continue to skid the back first and give me the scary ride I already have.
The 8 lug drums are still in production.
The 8 lug drum would fit if they had the correct lug pattern.
See where I'm going with this yet?
Get some drums from a J4700 or J4800 and redrilled them 5 lug. They're hub-centric anyway, so if the bolt pattern is slightly off or has an overlapped hole it's not that big of a deal.