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Looks fabulous. We acquired a 211 last summer. It belonged to a fire department who replaced it with a bigger unit. It sat behind the fire hall for 15 yrs. It has 13,000 mi. on it. I got it running and drove it around a little. After tuning it a little, the engine and every thing but...

RE: tranny fluid Am new to all this but am trying to come up to speed. Haven't had any experience with the M series till last winter, but I restore old GMC trucks and am being called on to work on these trucks now too. I notice there is little consensus on oil types for the Hydro-Matic (of...

RE: exhaust manifolds A friend of mine who worked in the motor pool when he was in the Army told me the biggest problem with broken manifolds was when a truck was turned in it had to be washed. Cold water was sprayed on the still hot manifolds. He said you could hear them pop when they broke...

I am an old GMC (civilian) truck fanatic, having grown up around and with these trucks. I am also a user, being an ex-trucker who owned CCKW's as loader trucks. Last winter we resurected an M-135, put a 5 yd. gravel box on it to haul sewer sand up a river on the ice to a house building site...