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Had to tighten the bolts around the bellhousing slowly and methodically going around it doing each one a little each time. Be careful, the item they are threaded into is aluminum, and the bolts are steel. Get 4 bolts about 3" long, cut the heads off of them, then take a zip saw and cut...

I don't wish to turn this into an oil debate either. Allison has a pdf called "mechanic tips" for the mtb 600 series of trans. There is an oil spec chart on page 5 that shows the C4 rating approved fluids. Basically, you choose what weight fluid depending on your use of the vehicle(on road or...

Let us know what you find out simp. I talked to Joe at eastern Surplus a couple weeks ago, he says there is no difference, that the torque converters are all the same between the A1 and A2 trucks. I just installed one of my 3 new ones, and it works perfectly in my A1 truck. All 3 have the...

Thanks for the advice country. so are you saying that the flywheel and ring are physically different to the point of not being able to fit/bolt together an 8.3l torque converter to an nhc250 flex plate ring gear? Is it possible to install an 8.3l setup to a nhc250, and the truck still...

Interested in this very topic as well. Rumor has it the torque converters are different, each engine having it's own unique converter made to match the torque curve of the engine. I am currently replacing my transmission in a M923 with NHC-250 engine, and have 3 trans to choose from. Hope one...