hello all, newbie with first post. rear diff broke spider gears. researching the forum it seems there is barely any info on rebuilding the G80. seems most people are replacing the G80 with something different. searching around the forum I think I'm going to call Rons machining and Randys ring&pinion. any advice from anybody who's has attempted swap/upgraded would be appreciated. also any other brands that people are happy with would love to here what was used. 07 Tahoe is just our daily driver/road trip truck so I'm not looking for anything crazy just hoping to do this once. Thanks for any advice!!
07 Tahoe rear diff
- Thread starter oldDirte
- Start date
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Eaton Detroit, its very unlikely to break, you may have to replace bearings eventually if your rough on it
swathdiver
Full Access Member
Welcome to the forum Gabe. You can get a subscription to AllDataDIY if you want the procedure on how to do it yourself.
Thanks. I have access to prodemand though, although I do like alldata better.
swathdiver
Full Access Member
Does prodemand explain the procedure? You can also purchase the service manual in pdf form from ebay.
yes its Mitchell on demand, which I believe was bought out by snap on now.
anybody know where to get a pinion depth tool that won't break the bank?
swathdiver
Full Access Member
You don't have to remove the ring and pinion to change the spider gears right? What I mean is that the ring gear can stay on the carrier while the busted parts are replaced. I'd still want to measure everything and make sure they're meshing right.
swathdiver
Full Access Member
The drive side is pretty close, low heel contact, the coast side is spot on. Check the backlash, should be between .003" and .005".
backlash was .006"
swathdiver
Full Access Member
Well, it's your call. You can shim the pinion a hair closer or leave it as is.
yeah I'm on the fence. smallest shim I have is .010" which I think would be too much. also don't wanna keep paying to get bearing pressed on/off while guessing.
swathdiver
Full Access Member
Close it up and drive it while being attentive to how she sounds, maybe even drop the cover after a hundred miles or so and see how it's meshing.
