What brand of gears to buy?

[909FF/PM]

I'm looking to regear my truck to 4.56 gears and was looking for some input on what brands are recommended? When I tow I tow a 16K fifth wheel.

[Big Mule]

I went with a Yukon gear from Randy's ring & pinion. The Yukon gear has always been reliable and shows little wear with high mileage pulling heavy loads, and is by far the most quiet. How do you fit under your 5th wheel with that size lift and tire?

[909FF/PM]

It is a little high in the front but tows ok. The trailer is a Gear Box so the axles are flipped. My trailer is 13'6" at the top of the A/C unit when it is hooked up to my truck. I'm planning on building some traction bars with built in blocks and dropping the rear of the truck about 2" so the trailer will ride a little more level.

[Vizsla]

I like Ford's gears. They are one of the better options as far as noise and longevity. The Ford 4.30 R&P is also a really good choice, with the diesel you really don't have to gear it as low as you would a gasser.

[cartmanea]

Ford gears will be quieter, but Yukons are quite a bit cheaper and are very good gears. I put 4.30 Yukons in 5 months ago and they're great. Why are you going with 4.56? With 37s, 4.30s will put you back to stock ratio. 4.56s will put your RPMs pretty high running on the highway, similar to my 4.30s with 35s. Unless you plan on going to larger tires later I'd go with 4.30s.

[909FF/PM]

Thank you for all the good info so far.

[Big Mule]

I roll with the 4.30's and 33'' tires. It is not my daily driver so I really enjoy the the low gearing for pulling my 5th wheel. They are great for head winds and mountain passes, you do lose a little mpg empty but gain it back pulling. With your big tires and 5th wheel your tranny will thank you. I live about 70 miles south of you in San diego, and we are both surrounded by mountains and killer winds so you will really appreciate the low end grunt.

[jamstoyz]

yeah i would run 4.30's cause its a ford product. i run 4.30 and love it.

[humboldtstrokin']

4.56's bring you to stock with 37's. That is what I did and I have no regrets. Don't do anything but yukons

[cartmanea]

Originally Posted by humboldtstrokin'

4.56's bring you to stock with 37's. That is what I did and I have no regrets. Don't do anything but yukons

No, 4.30s are closer to stock.

31.6" x 4.30 / 3.73 = 36.4"

4.56 are 6% lower, which would put you a little over 2000 rpms running 65 mph.