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Discussion in 'The Garage' started by cegusman, Nov 6, 2002.
What is the highest gear (4.88 and up) you can get for a 14 bolt?
I beleive it's 5.13, but then the pinion gear is so small that it's somewhat failure prone with the obligitory big tires.
<font color="green"> Failure prone? that's the first I've heard that one... I just went out and took a look at the pinion gear for the 5.13 gears set that's going in my 14 bolt this weekend. It doesn't look all that small to me, it's about the same size as the 4.10 pinion from my old D44. The 14b gear only has 8 teeth on it, but they are pretty massive and there are other gears out there that have pinions with only 5 or 6 teeth on them. </font color>
You are putting more leverage (lower gears) over a smaller area (smaller pinion gear.)
Do you really want a pinion the size of a d44 in your 14 bolt? I don't.
I've had 5.13's in my trail truck (that's got a roller 468) with 44's for about 6 years now. I have beat on them 4 wheeling and doing massive burnouts that lasted mid way through 2nd gear with no failures or problems. I've had both a TH400 with a 3800 stall and now a 4spd so I know they've felt the abuse. I'm not saying that they don't fail but I will say the failure rate is drastically lower than smaller axles. In fact, I have not had any problems with my D60 and the 5.13 pinion it it is smaller than the 14 bolt.
<font color="green"> The teeth on the 14b gears are a hell of a lot bigger than on the 44. I've also yet to hear of someone fragging the gears in a 14 bolt, regardless of the gear ratio. </font color>
What? A bud of mine fed his 5.13 geared 14 bolt several versions of a full roller 502 with 400hp N2O ALL THE FRIGGIN TIME with no problem that I ever heard of.
Here's a dana44 and 14FF 5.13 gear sets for you...
Yeah, that pinion gear looks so fragile... /forums/images/graemlins/rolleyes.gif /forums/images/graemlins/rolleyes.gif
There may a marginal strength loss with 5.13's, but it isn't enough to worry about. Stephen Watson wasn't worried about running The ORD Jimmy with 5.13's in his 14 bolt and 42's (and healthy BBC)
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