How to: Ruin a perfectly good C10

[gringoloco]

Originally Posted by 3767

Gringo…when you got your spider gear set, are they Yukon specific or do you have a choice of manufacturers to chose from.Just curious if Yukon is made a certain way that’s not interchangeable with another manufacturer.

Yukon is supposedly a one-for-one direct copy of the Eaton, so they should work across any of that style. Probably good to call and ask them directly, they were super helpful on the phone with me.

The spider gears are the same for car and truck 12-bolts (all of the posi internals are, just the carrier itself differs). I do know that https://tomsdifferentials.com/contact-us/ also offers the 33-spline gears, I think made by USA gear and then hardened. I will caution you, if you’re not using a Yukon carrier, you will likely need to bore the through holes larger to accommodate the larger diameter axles. Yukon, I learned, uses the same casting for both 30- and 33-spline units.