TUNDRA 4.88 & 5.29 Gear Packages Available!! - TundraTalk.net - Toyota Tundra Discussion Forum
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TUNDRA 4.88 & 5.29 Gear Packages Available!!



Nitro Gear Package for 07+ Tundra is one of Nitro’s biggest sellers. Why? Because these trucks need regeared. The Tundra has a very tall overdrive in 5th AND 6th gear to turn low RPMS. If you are running 33” or larger tires, the 6th gear becomes near useless and all that great horsepower the 5.7L makes can be wasted. This also causes constant shifting, poor economy, and poor acceleration. By regearing you can bring the motor back to the RPM it was intended to run. This will improve Economy, Performance, and shifting. This is one of the most important modifications you can make after installing larger tires on your late model Tundra. This is the only way to properly compensate for the increase in tire diameter.
4.88 Most popular for 33-35” tires (4.88 & 35” tires, ~1750 RPM @ 60 MPH, ~2000 RPM @ 70 MPH)
5.29 Most popular for 35+” tires (4.88 & 37” tires, ~1775 RPM @ 60 MPH, ~2100 RPM @ 70 MPH)
As for traction, none of the 07+ Tundras come with an LSD (Posi), The factory “Electronic LSD” is just traction control, and is more “P.O.S.” than “POSI”. All tundras can benefit from the increased traction that an aftermarket LSD or Locker will provide. Another benefit is strength.
Gear change and/or Posi/Locker install does not cause issues with the factory electronics.
The Tundra uses a huge 10.5” diff that is much larger than any other ton pickup produced. The problem is the factory Standard Open (non-posi) carrier is very weak by design, and has already failed in many stock pickups, this is all the more reason to add An Auburn Pro LSD or an ARB Air Locker to the rear.

4X4 5.7L:
Front & Rear Gears, Master kits:
http://www.justdifferentials.com/GPT...ra5.7-4.88.htm
Auburn Pro LSD: http://www.justdifferentials.com/AG5...420134-pro.htm

4x4 4.6 & 4.7L:
Front & Rear Gears, Master kits:
http://www.justdifferentials.com/GPT...200-4.88-1.htm
Auburn Pro LSD:
http://www.justdifferentials.com/AG5...420133-pro.htm

For 2wd parts are sold individually so call or email.


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JT's Parts & Accessories, online at
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The nations leader in aftermarket Toyota differential parts, we stock more than 10 Million in inventory.


(866) 525-4620 or
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