Finally installed the 14 bolt i had picked up from the junk yard a while back. My truck came with the 10 bolt and 3.42 gears. 14 bolt has 4.10's which should really help with the 33" tires.
14 bolt came from an avalanche i believe. i believe these came factory in truck with 6.2L but you'll have to search to find the gear ratio you want. Doing an axle swap is cheaper than re-gearing the existing 10 bolt and now i get the heavy duty axle. (2wd also so no front diff to re-gear either. blessing and curse)
you'll also need a conversion u-joint to a 1350 for your driveshaft. i picked up a driveshaft as well from the junkyard so i could get the new u-joints installed without any down time.
![IMG_7574.jpeg IMG_7574.jpeg](https://www.tahoeyukonforum.com/data/attachments/343/343242-1945574d9adec7d286c101792fba18a6.jpg)
![65188956878__B3704EB8-A912-4ACF-8389-55765EB0B781.jpeg 65188956878__B3704EB8-A912-4ACF-8389-55765EB0B781.jpeg](https://www.tahoeyukonforum.com/data/attachments/343/343241-f90e68cc1fd0707bcbec993c6275b93b.jpg)
After a quick tune update with hp tuners the drive-ability is 10000x better. 4.10 is a great gear pairing for the 33's and 4l60e. seems like the 1-2 and 2-1 shift needs some cleaning up as well as idle but i've got a bit more learning to do before messing with that stuff. gear/tire wizard i can do lol
14 bolt came from an avalanche i believe. i believe these came factory in truck with 6.2L but you'll have to search to find the gear ratio you want. Doing an axle swap is cheaper than re-gearing the existing 10 bolt and now i get the heavy duty axle. (2wd also so no front diff to re-gear either. blessing and curse)
you'll also need a conversion u-joint to a 1350 for your driveshaft. i picked up a driveshaft as well from the junkyard so i could get the new u-joints installed without any down time.
![IMG_7574.jpeg IMG_7574.jpeg](https://www.tahoeyukonforum.com/data/attachments/343/343242-1945574d9adec7d286c101792fba18a6.jpg)
![65188956878__B3704EB8-A912-4ACF-8389-55765EB0B781.jpeg 65188956878__B3704EB8-A912-4ACF-8389-55765EB0B781.jpeg](https://www.tahoeyukonforum.com/data/attachments/343/343241-f90e68cc1fd0707bcbec993c6275b93b.jpg)
After a quick tune update with hp tuners the drive-ability is 10000x better. 4.10 is a great gear pairing for the 33's and 4l60e. seems like the 1-2 and 2-1 shift needs some cleaning up as well as idle but i've got a bit more learning to do before messing with that stuff. gear/tire wizard i can do lol
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