US-Gear 12-bolt pro gear issues ???

Bob Gullett · 09-22-2024, 09:03 PM

I run the same gear in mine with no issues. 5:57 US pro gear. I have found in most cases that a .035-.037 pinion shim is right on the money. .008-.011 BL. Pattern is right on the money both sides. But that doesn't mean you got a bad set. A few years ago we had set of Richmond pro gears in my wifes car. Set them up with a perfect pattern. 20 runs they sheared all the teeth off. Only conclusion we came up with is that they weren't heat treated properly or were a set of street gears marked as a pro gear set.

09-22-2024, 09:03 PM	#8
Bob Gullett VIP Member Join Date: Mar 2002 Posts: 1,107 Likes: 57 Liked 509 Times in 117 Posts	Re: US-Gear 12-bolt pro gear issues ??? I run the same gear in mine with no issues. 5:57 US pro gear. I have found in most cases that a .035-.037 pinion shim is right on the money. .008-.011 BL. Pattern is right on the money both sides. But that doesn't mean you got a bad set. A few years ago we had set of Richmond pro gears in my wifes car. Set them up with a perfect pattern. 20 runs they sheared all the teeth off. Only conclusion we came up with is that they weren't heat treated properly or were a set of street gears marked as a pro gear set. __________________ 68 Chevy11 327 F/S