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Hello All, Last night I was driving my 71 m813 around town and during braking it made a "thump" sound under the floor, and then I heard gear clatter/grinding for about 3 or 4 seconds. I pushed the clutch in and the noise continued until I slowed down a bit and then it went away. A few miles...

Hello guys, I am new here but have been using your forums for information for a while. I have a 72 M813A1 and I am having a fuel system problem. The truck starts and runs great. BUT as soon as I drive down the road I get a major fuel leak from the lift pump area. When I run it in the driveway...