22re on 38" 5.29's or 4.88's

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Nov 19, 2012 | 06:16 PM

#21

TrikeKid

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Joined: Oct 2007

Posts: 606

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From: Roy, WA

Quote:

Originally Posted by Dirt Driver

Where do the 5.71s usually fail? Even if they are of equal strength to a lower ratio, the higher torque multiplication can/will increase surface forces and possibly third member flexing. It is well-known in Mustang circles that the 2.95 first gear T5 boxes will take more abuse than the 3.35 version for that reason. Honda reduced the primary ratio in some of their bikes to keep the transmission gears from pitting.

Pinions fail from a combo of being TINY (fewer teeth in contact with the ring at once) and usually being set up with a crush sleeve which will also open 5.29's up for failure. Everyone I know that beats Toyota gear broke gears regularly till going 4.10 with a high pinion front. That's on trailer only rigs on 38 or better TSL's. One guy still lunches diff parts regularly in a buggy but I attribute that to a lack of driving experience and the 42" SX's. He just couldn't be talked into a V8 and 1 tons the first time around.