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seal leak
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  1. Allison OEM
    Hey guys, I bought my truck about 4 months ago no complaints runs great done a few repairs with the power steering. It’s a 2001 2500hd 8.1 w/ Allison 5spd with 170k now( had 166k when I bought it) ever since I bought the truck it’s had a very slow leak from the rear main seal and it is trans...
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