The Stovebolt Site Forums The Shop Area Engine Shop brake shoe size

I may have posted this before but I forget(easily). I bought brake shoes for my 49 front and rear. Raybestos 141PG. The four shoes in one box had linings longer than the other. As the 49 shoes are the same on both sides of the axle I could always put the longer set on the front and the shorter on the rear. Someone said I should split the difference and put the longer lined shoes on the backing plate facing the front of the truck (front and rear) and someone suggested the longer lined shoes should go on the backing plates facing the rear of the truck. I am easily confused. I think this might apply on bendix brakes where one shoe is longer.

blu - on the TF trucks [bendix] one shoe in each wheel is longer - the one on the rearward side of each, which is called the secondary shoe, and does more of the braking - if you have the 'huck brakes' it might be different, and maybe they gave you the wrong parts - don't think you wanna make it so any wheel has 2 longer shoes

Bill

Bill, the brakes are Huck style and the shoes/linings on each wheel are equal length. They can in fact be reversed if there is wear on one. Having a box of shoes which is about one inch longer than the other box, both same part number, perhaps I can put the longer shoes entirerly on the front.

On huck brakes the front shoe is going to do most of the braking. I would put the long shoe in front.

Wrenchbender you are mistaken. Here is a link to Raybestos counterman training page. http://www.raybestos.com/OnLineTraining/cpt-007.htm
The larger shoe will go in the rear position.

Hope this clears things up for you!

So Bendix brakes are self-energizing... Are Huck brakes self energizing? I am pretty sure that my 54 had Bendix brakes on it.

Gord. In 54 it did. My 53 has them.

OK I went to your training center sight. It shows that 70% of the brakeing is on the front shoe on non-servo brakes which is what huck brakes are. I believe I would want the most braking on the longest shoe. Huck brakes were used on 1/2 tons 1950 on back.

I think that it is incorrect to have unequal length linings on the Huck brakes. Have you compared the metal part of the shoes to your old ones? If they are for Bendix brakes, the metal form will be different.

The front brakes on 49 or at least on MY 49 are "huck" brakes or NON Servo brakes. However my rear brakes are Servo style.

Now if I understand the original post "The four shoes in one box had linings longer than the other."
Olblu49 has 2 sets of brake shoes. One set of four is longer then the other set of 4.

If it were me I would put the longer set on the front brakes. As they do most of the braking. I would not mix and match lengths between the boxes.


Good luck

Brian if you have servo type brakes on the rear they have been changed at sometime because they didn,t come out that way. It,s true the linings should be the same length. Old blue you might take that back to the supplyer & check with them.

Brian you have my post right. Two boxes of shoes, 4 shoes with 1 3/4" wide by 11 1/4" long lining and the second set of 4 shoes with linings that are 1 3/4" by 10 1/2" long. Both are from Raybestos p/n 141PG. If I keep them I will put the longer linings on the front wheels. The shoes themself are identical. Now another thing has come up. I want extra friction (FF)linings and the edge code on the shoes should show it in a serial/compound number. These shows show nothing. After more inquiries it was suggested that these may be counterfeit shoes! More research to come.