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My kit had the 2 seals for the piston, a seal for the shaft going into the transfer case, 2 snap rings for the springs, 2 O rings that I could not figure out where they sent, and the two copper washers that were the wrong size.

Did you have the O rings too? I couldn't find any place to use them. Did you? Sorry about the posting error. The other forum I am used to posting on the threads disappear down the page so you have to post updates under a new thread.

I went and worked on the two five tons today. The one with the sprag issue turned out to be the air cylinder needed rebuilt. I took it apart and the rubber seals were hard and the piston fell out on the floor. I installed the new seal cups and the snap rings. I ended up with two O rings left...

Sprag Valve and Brake update I went and worked on the two five tons today. The one with the sprag issue turned out to be the air cylinder needed rebuilt. I took it apart and the rubber seals were hard and the piston fell out on the floor. I installed the new seal cups and the snap rings. I...

I got a complete valve from Memphis. When I called them I talked to the shop foreman. Seemed to be a very helpful guy. I told him what it was doing and he suggested that it was probably the air shift cylinder on the transfer case. He said that most likely the seal on it has a cut in it and...

Thanks for the replies. I am going to call down to the KS forest Service tommorrow and see what they have for parts and go from there. Thanks for the link to Chris's pictures. That gives me an idea what to look for.

I was working on one of our 5ton 6x6 firetrucks today and noticed that it had a substantial air leak under the cab by the gearshift. The truck is M818 tractor that we converted to a firetruck. I assume the air valve that shifts the sprag from forward to reverse is leaking. Are they...