10 Or 11 Inch Brakes

How can I tell what size my back drum brakes are? cj5 72-75 dana 44, Any numbers on the backing plate and where would they be. Can i measure the backing plate.I do not have the old brakes to compare with

 

11 inch if they are stock

 

when I measure the backing plates and they are 11'' then are the brakes 10''

 

Inside diameter of the drum is the relevant measurement. 10" brakes ended in 1971 for the CJs. Take the drum off and measure. Post a pic if you are unsure.

 

Yes if the backing plate measures 11" across they are 10" brakes.

 

I'm with the general consensus that 72 thru 75 had 11 inch brakes.

 

Here are 2 pictures 1 of the backing plate and the drum,do I have the right parts for 11 inch brakes,also are the brakes on correct,thanks in advance

 

Appear to be 11" brakes.

 

Those are Bendix brakes. 11" brakes were Bendix. The earlier 10" brakes are different, with links not a cable IIRC.

Look at figures 9-22 and 9-23 here. http://oljeep.com/gw/74_tsm/9-BrakesWheels.pdf This is the left side; the right side is the mirror image of the left.

There are left and right hand adjusters. Make sure the brakes tighten when the self-adjusters tighten. Pull on the cable and the lever will climb the star wheel. Then release, and the lever will turn the star wheel. This turning must tighten the brakes, ie the adjuster must lengthen and the shoes move apart.

The finned drums were used in '74 and '75. They'll work on a '72 or '73, which came with a plain drum.

 

Another question. How long are the wheel cylinder links be. I lost all 4 of mine got a replacements but not sure if they are the correct ones