The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

*randy500* · 01-05-2018, 11:03 PM

Post 9 is your best pattern, although your first pattern was good too for a performance application and most gear sets are lapped for a toe pattern. There is a corvette guy that does a lot of rear ends, I will find. A pic of his patterns and Post back.
The current pattern will put way too much load on the heal of the teeth and if you have horsepower will break a tooth.

The pattern on the drive side should be slightly towards the toe since under load the pattern will shift to the center. Don’t worry about the coast pattern as far as placement unless way off.
If you can you should be putting a load on the ring gear and turning the pinion with a socket. You can rig up a couple bolts and a hard wood block to load the ring gear.

01-05-2018, 11:03 PM	#20
randy500 Account Suspended Join Date: Jul 2016 Location: Tacoma, WA Posts: 6,873	Re: Check my gear pattern :) Post 9 is your best pattern, although your first pattern was good too for a performance application and most gear sets are lapped for a toe pattern. There is a corvette guy that does a lot of rear ends, I will find. A pic of his patterns and Post back. The current pattern will put way too much load on the heal of the teeth and if you have horsepower will break a tooth. The pattern on the drive side should be slightly towards the toe since under load the pattern will shift to the center. Don’t worry about the coast pattern as far as placement unless way off. If you can you should be putting a load on the ring gear and turning the pinion with a socket. You can rig up a couple bolts and a hard wood block to load the ring gear.