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CentipedePerformance · 09-12-2012, 10:53 AM

I think the main issue was hit on early in the thread. 3.08 gears with a 33" tire is probably going to take the steam out of almost any mild motor. Stock is *I believe* a 275/35/15, a 33" tall tire is roughly 14% larger. With the increase in tire size, that's like putting 2.65 rear gears in the truck. Not to mention the extra rotating mass of the taller, wider, and knobbier tires. First gear on the 700r4 is 3.06:1 which is pretty low for an automatic, which is why first gear still feels ok, but it will do darn near 50 mph in first gear. I have found gear sets for pretty cheap, so I am considering throwing some in, but we will see. The truck is OK for now, just a bit disappointing.

09-12-2012, 10:53 AM	#35
CentipedePerformance Registered User Join Date: Oct 2011 Location: Tucson, AZ Posts: 55	Re: 84 K10 is still gutless after cam heads intake I think the main issue was hit on early in the thread. 3.08 gears with a 33" tire is probably going to take the steam out of almost any mild motor. Stock is I believe a 275/35/15, a 33" tall tire is roughly 14% larger. With the increase in tire size, that's like putting 2.65 rear gears in the truck. Not to mention the extra rotating mass of the taller, wider, and knobbier tires. First gear on the 700r4 is 3.06:1 which is pretty low for an automatic, which is why first gear still feels ok, but it will do darn near 50 mph in first gear. I have found gear sets for pretty cheap, so I am considering throwing some in, but we will see. The truck is OK for now, just a bit disappointing.