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Old 07-07-2014, 08:59 PM   #186
COS399
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Join Date: Dec 2013
Location: Northern, MT
Posts: 569
Re: 89 GMC Cummins conversion

Quote:
Originally Posted by Hankster View Post
Uh oh.. I'm not real good with tansmission or transfercases.. but that can't be good?
I think it will be more labor than parts.

Quote:
Originally Posted by MTCK View Post
That's a bummer. I didn't know the transmission had a thermostat... Guess I had better get educated.
The aftermarket transmission cooler mounted up front has a thermostat that turns the cooling fan on and off, not the transmission.
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1987 GMC R2500 SC 454 T400
1988 Chevy R30 CC DRW 12 valve Cummins NV4500 GearVendors
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