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Old 04-18-2007, 11:21 AM
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ring and pinion,,,,, opinions

ok i think i want to change my pinion gear out, ive got an '03 cc wit 7.3L w/a superchip, 4'' x-haust, K&N intake, ive got a 4.11 rear end, whats your guys opinions or going with a 3.73, 3.55, or maybe even a 3.08? really its a daily driver, i pull an 20' enclosed trailer wit motorcycles and maybe a camper at times. just wondered if anyone has any experience wit this, o and i do have to change the front also, correct? thanks tons, everyone on here is great!!:burnout
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Old 04-18-2007, 11:49 AM
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Quote:
Originally Posted by codman02 View Post
ok i think i want to change my pinion gear out, ive got an '03 cc wit 7.3L w/a superchip, 4'' x-haust, K&N intake, ive got a 4.11 rear end, whats your guys opinions or going with a 3.73, 3.55, or maybe even a 3.08? really its a daily driver, i pull an 20' enclosed trailer wit motorcycles and maybe a camper at times. just wondered if anyone has any experience wit this, o and i do have to change the front also, correct? thanks tons, everyone on here is great!!:burnout
Ok yes you would have to change out the front if you have a fourwheel drive. If you don't something will break. As for changing the gears. How often do you pull. The gear ratio you have is a better gear ratio for pulling. If however you were going to change them I would suggest not to go below 3.73:1 gear ratio.

But if you figure in cost of the new gear sets and installation I don't think it is worth it if you are doing it for better mileage.
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Old 04-18-2007, 12:00 PM
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You would not want to do any towing at all with a 3.08 gear! A 3.55 is going to be extremely high for towing but is do-able. With the 34" tall rubber that came on my truck along with 3.73 rears, I am geared close to what a 3.55 with stock rubber would be. I can tow 15,000 and get the job done, but I wouldn't want to do it on the highway and try to maintain 60 mph.

It sounds like you may tow upwards of 10,000 lbs at times. You could survive with 3.55 gears, but it's going to be an outright dog. It will take you forever to get up to speed and you will struggle to keep it there. You sure won't gain any fuel economy towing with those gears.

If you drive 20,000 miles per year and the gear swap nets you 15% better fuel mileage, you may save as much as $500 per year. No matter what annual miles you drive, I would guess that it will take at least 60-70,000 miles to recoup the cost of a gear swap on a 4x4.
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Old 04-18-2007, 08:10 PM
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the best optin would be a 3.73 if you were going to regear as they are pretty cheap to come by. you can sell your 4.10s and recoup some of your cost to regear.
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Old 04-24-2007, 06:20 PM
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has anyone looked into the aftermarket over/under drive gear sets that mount on the back of the tranny?
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