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SilverGT3RS · 03-28-2024, 08:42 PM

Eaton Tru Trac, Motive gears 4.10’s in a 67 C10 housing.

Pinion depth set with T&D Machine pinion gauge. Pinion head called for 2.751, and 3 different areas of the pinion read 2.750.

Backlash set at exactly .0085 Motive calls for .007-.009 spec.

The yellow compound was maybe a tad thick, so that may be giving me a bit of and issue as far as pattern, but I did hook a drill to the pinion nut and ran it around 1,000 rpms to get the pattern.

Any thoughts?

03-28-2024, 08:42 PM	#1
SilverGT3RS Registered User Join Date: Apr 2019 Location: SC Posts: 63	Gear pattern gurus…take a look Eaton Tru Trac, Motive gears 4.10’s in a 67 C10 housing. Pinion depth set with T&D Machine pinion gauge. Pinion head called for 2.751, and 3 different areas of the pinion read 2.750. Backlash set at exactly .0085 Motive calls for .007-.009 spec. The yellow compound was maybe a tad thick, so that may be giving me a bit of and issue as far as pattern, but I did hook a drill to the pinion nut and ran it around 1,000 rpms to get the pattern. Any thoughts? Attached Images Last edited by SilverGT3RS; 03-29-2024 at 10:52 AM.