<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by GONEGOLFING:
What size and brand of tire/rims are you running? Do you have a charger? I've been very interested in a lift and larger tires but just don't want to loose the take off. What brand of ring and pinion did you go with? Congrats on the install. </div></BLOCKQUOTE>
I went with the Mazzi Hulks in 20's. The tires were Toyo Open Country 38-15.5/20's. I recently sold a Yukon with 12" of lift and 36's. I had 4.56 gears in it also.
Point is, the 6.0 would run circles around my Yukon so I was hoping that the bigger tires (though they are 38's, they really measure 36.5") wouldn't affect it that much.
Unfortunately I was wrong. The 140 lb. a piece tires is too much drag on the engine. That's alot of rotating mass. The truck was having problems maintaining 70mph on any kind of incline. It was constanting shifting and my gas mileage went down to around 9 mpg.
With the 4.56's, I'm back to 10-11 mpg and the transmission isn't searching contantly. I'm holding off on the supercharger right now but I did order the Volant air intake, Superchip and Magnaflow catback. Hopefully, all these will at least make a noticeable difference.
BTW, I bought YUKON gears. I bought both front and rear ring and pinions, two minor install kits and pinion bearings for less than 700 bucks.
They fit well, they didn't take but one 9mm shim for backlash.
Mark
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