Just so you know, if you buy the summit brand gears from summit. They are made by yukon and it makes dealing with the warranty really easy too. You can call them and ask them who makes there gears and they will tell you over the phone that yukon does. I ordered a set from them and installed them and due to an act of God, and lack of breaking the gears in... 20 miles on them and making 5 passes down the track with 4k rpm launches and traction.... all the teath got sheared off the pinion gear. I called summit the next day and they sent me a new set and another install kit free of charge and even over nighted it with fedex. I installed the gears that next day when they came in and havnt had any another problem with them. You cant beat that kind of customer service, and the prices are amazing.

Jon

Just make sure you do a proper break in.

 

what is the exact size gears we need for our trucks? is it 8.5?

 

8.5/8.6

cool, I'll order them from Ron's when i do...thansk fellas!