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Discussion Starter #1
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!
 

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96' up uses GM 8

94-95 uses GM 4.
 

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I thought they were all interchangeable? what difference is there?
 

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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
 

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Discussion Starter #5
great! thanks for the info, very appreciated
 

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there should be a tag on the front of the turbo telling you which one you have right near the air inlet
 
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