Have a 2017 GMC 2500 Denali HD Gas. Noticed some axle fluid on the rear inside passenger wheel. Thought I had a bad seal. Took it in for repair and they said "something let loose in there and you need a new rear axle and differential". Parts are ordered and they said they will have the truck for a few days to a week to fix. Truck has 10,500 miles on it. I'm guessing factory defect or something? Makes me feel uneasy about having major repair work done to the vehicle that I barely owned one year. Can I expect this to be "good as new" when it's done? I certainly will be watching it close, especially once the warranty gets close to expiring.

"Can I expect this to be good as new when it's done"Presuming you took it into the dealer, the parts should be OEM, warranted for the original 60,000 miles, and good as new. The labor, well that's a coin toss.

If you do not have the limited slip differential already now is the time to get one put in.

GM like all others buys the rear end assembly complete from an outside supplier. Any mechanical device can fail. Fix it and move on.

donn0128 wrote:GM like all others buys the rear end assembly complete from an outside supplier. Any mechanical device can fail. Fix it and move on.Well said. No need for paranoia, unless you really feel like you can't trust the truck anymore, in which case how much do you want for it?

If they are replacing the whole thing it's nothing to worry about. If they are messing with the gear set you have much more risk about the person knowing what they are doing. If they replace spiders or carrier bearings etc it's less work but how much metal has traveled through everything. Hopefully it's the whole drive axle housing assembly. Id bet that's what they are getting.

Need new rear axle and differential 2500HD GMC***UPDATE***

ksss
Explorer
Aug 09, 2018
TxTiger wrote:
rtreptow7 wrote:
could get in the same truck, a year newer, brand new...for $4K more after a trade.

That sounds like a pretty good deal. With 10,500 miles, comes out to 38 cents a mile in depreciation it's cost you. I don't see how the dealer comes out well on that. Normally depreciation is pretty heavy the first couple of years.

I would take that deal.
TxTiger
Explorer
Aug 08, 2018
rtreptow7 wrote:
could get in the same truck, a year newer, brand new...for $4K more after a trade.

That sounds like a pretty good deal. With 10,500 miles, comes out to 38 cents a mile in depreciation it's cost you. I don't see how the dealer comes out well on that. Normally depreciation is pretty heavy the first couple of years.
azwildcat
Explorer
Aug 08, 2018
Was at the GM dealer a couple of days ago and was told the 2019 2500 won't change until 2020 or later. There should be some changes in 2019 1500.
rtreptow7
Explorer II
Aug 08, 2018
colliehauler wrote:
rtreptow7 wrote:
could get in the same truck, a year newer, brand new...for $4K more after a trade.
Isn't Chevy getting a all new truck for 2019? If so they ought to be out shortly.

I think 2019 2500HD trucks are the same?
colliehauler
Explorer III
Aug 08, 2018
rtreptow7 wrote:
could get in the same truck, a year newer, brand new...for $4K more after a trade.
Isn't Chevy getting a all new truck for 2019? If so they ought to be out shortly.
rtreptow7
Explorer II
Aug 08, 2018
could get in the same truck, a year newer, brand new...for $4K more after a trade.
rtreptow7
Explorer II
Aug 08, 2018
troubledwaters wrote:
Bummer, if it was a TT you were pulling instead of a fifth wheel you could probably just get a loaner off their used car lot, or rent a 2500 for your trip. But needing a fifth wheel hitch makes all that extremely unlikely. But what the heck, I think asking for a loaner to pull a fifth wheel is still worth a shot; who knows, maybe they can hook you up.

I did mention this, but something about their insurance not allowing them to provide loaners for towing prevents this from happening.
GeoBoy
Explorer
Aug 08, 2018
Sit tight, see if you can find a hotel/campground cabin where you are going on vacation and save some money. Good luck and have fun.
troubledwaters
Explorer III
Aug 08, 2018
Bummer, if it was a TT you were pulling instead of a fifth wheel you could probably just get a loaner off their used car lot, or rent a 2500 for your trip. But needing a fifth wheel hitch makes all that extremely unlikely. But what the heck, I think asking for a loaner to pull a fifth wheel is still worth a shot; who knows, maybe they can hook you up.
rtreptow7
Explorer II
Aug 08, 2018
Update: Truck is still at dealer. Been there since 7-27-18. Got a call today stating that the part hasn't even shipped yet and after it ships, takes 5-7 days until delivery. Apparently parts aren't just sitting in a warehouse, but need to be manufactured. I've been without my tow vehicle for 2 weekends already, for sure a third this weekend, and possibly even a fourth the following weekend. Our camping/boating season is so short here in Wisconsin already. Supposed to be leaving for a week long camping trip on the 16th of August and doesn't look good for having my tow vehicle back by then. Frustrating. Considering trading the truck in on an identical 2018 so we don't have to cancel our family vacation. I mentioned trading it in to the dealer and he is getting some numbers together and will be getting back to me. The GM is also contacting supplier to see if there is a way to expedite the order/shipping. I'm guessing I would take a big hit trading in a year old vehicle. I guess just venting here.