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gmcrew · 03-15-2015, 05:44 PM

Nice truck! This is a little off topic, but do you happen to know what your RPM's are when you're running down the highway, un-laden and on the flat, say at 60 mph? I'm having issues with my 4l80e.

03-15-2015, 05:44 PM	#137
gmcrew Registered User Join Date: Jan 2014 Location: Kamloops BC Posts: 22	Re: 1991 V3500 Project Heavy Hauler Nice truck! This is a little off topic, but do you happen to know what your RPM's are when you're running down the highway, un-laden and on the flat, say at 60 mph? I'm having issues with my 4l80e.