Quote:

---

Mark Williams cap on driver's side. 489 housing. Solid pinion spacer. 4.56 ring and pinion, less than 200 miles, around 100 passes. Like new except for one tooth missing from ring gear...

I had to put one of my 4.10's back in.

I was surprised. 400HP maybe, auto, no-transbrake, 3300-3400 pounds.

---

don't forget, the lower the numerical ratio (bigger numbers) the more and smaller the teeth are. take a ring gear of the same diameter, same material, I GUARANTEE a 2.76 ring gear is stronger than a 3.23 is stronger than a 3.91 is stronger than a 4.10.

so as far and R&P strength, run 2.94's and 23" tall tires for the same overall gear ratio as 4.10's and 32" slicks you won't break teeth as easy (of course, you won't have the sidewall flex for as much bite, either)

that's another nice advantage of the TKO tranny-- the deep first gear allows a low higher (lower numerically) gears to get a deep overall 1st gear ratio, which makes for a stronger ring & pinion.