thanks for the replys, what through me off was that both of the 50's are 3/4 tons. don't figure why one had huck and the other bendix. thought maybe someone had did a swap before but everything looks stock. will still bring up the 4100 and take a look at the huck setup on that one before i change everything over, the brakes look good just need a spring and one ajuster side for the back. will let you know that outcome.. thanks for the feed back
