I'm planning to have my rear diff rebuilt with a Detroit TruTrac and I'll do a complete rebuild at the same time.

How do Yukon grears stack up? The factory Ford parts have held up for 230K miles. I don't have any issues with them, but for the price I can move to Yukon gears. Are they better?

What is the opinion on aftermarket parts vs. factory parts for such a job as the rear diff rebuild?

 

Aftermarket usually costs less and normally fixed factory flaws. Yukon is a great set of gears. Aftermarket gears are easier to set up if you have a bare housing being the pinion depth is scribed on the gear, doesn't matter so much if you have a complete axle. Aftermarket gearsets will normally provide a stiffer crush sleave so be aware you aren't going to compress it with the pinion nut to achieve preload. Normally you will have to start compressing it in a press. They do this to keep it being crushed more during hard gear loads. Don't be afraid of aftermarket gears as long as a they are a quality brand, yukon, nitro, G2 are just a few.

 

Thank you very much! Since I'm doing a rebuild with a Detroit TruTac diff, I wanted to replace the gears too. Seeing as Ford can be expensive, I wanted opinions on the quality and durability of the aftermarket options.

Seems they will be a good replacement option.