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blazemaro 01-31-2007, 12:15 AM Hey everyone, I was wondering if there were changes made to the turbos on the 6.5 td's. I have a 95 k2500 and all the boneyards around here tell me they dont have any for a '95. What will work? Thanks! billybobjethro 01-31-2007, 12:20 AM 94-95 uses GM 4. 4DR4X4 01-31-2007, 08:13 AM I thought they were all interchangeable? what difference is there? gmctd 01-31-2007, 08:47 AM Welcome to the forum, Blazemaro........ '96-'97 uses GM-5 '97-'98-up uses GM8 All interchange, with -8 being best of the lot. GM-5 is same as -8, but -8 has improved wastegate assembly blazemaro 01-31-2007, 02:39 PM great! thanks for the info, very appreciated notbob 01-31-2007, 03:47 PM i've got a 97, how can i tell if mine is a gm-5 or a gm-8? baddiesel 01-31-2007, 03:52 PM there should be a tag on the front of the turbo telling you which one you have right near the air inlet | ||