Overheating rear end

I had the same type issue after my 8 3/4 swap.

• Do you have power brakes?
• I assume this did not happen with the old not true axles

All of your temps are not that outrageous but being different side to side is concerning. BUT if one side was working better than the other... (air in the line, shoes not adjusted enough)


Next time,

drive for 5-10 minutes somewhere you can stop without using the brake (and try not using the brake along the way) like a slight uphill coast to a stop and

1. measure the housing right behind where the backing plate attaches IE where the bearing sits in the housing on both sides
2. measure the drum its self both sides, pick a spot the same on both sides
3. measure the center of the axle visible with the hubcaps off

Some odd things that can happen

1. the housing is bent up / down OR fore / aft.
2. the bearings should not rotate completely freely, they are sealed bearings and are permanently lubed. if they are dry or damaged that will generate a lot of heat
3. when you insert the axles do they seat fully or do the nuts pull them in? if there was an issue with axle length you might be pinching the bearing so to speak

in my case the shoes were 10" (new) while my drums were at or slightly over max, the adjusters would work fine but would end up too tight. I put the old shoes back in and everything is good now.