My new 2018 GMC Sierra SLT premium plus Max tow crew cab standard bed

[Loco-diablo]

16 hours ago, 2009GMC said:

Thanks for the info. Now looking at husky and Oem mats. 

 

Anyone have experience with oem or this seller?

 

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F311590041810

 

 

One thing to be aware of is that the GM OEM liners don't provide coverage under the gas pedal. Living in New England with snow and salt, it was a deal breaker for me. I have the Husky X-ACT liners front liners with hump cover (since I have bench seats) and full, under the seat liner in the rear.I never looked back. They are excellent IMO

[Loco-diablo]

16 hours ago, 2009GMC said:

Will prob get mud flaps to limit tire spray and rock chips etc. 

 

any mudflap recommendations?

I went with the OEM's for my 17 Silverado. I had the dealer install them at my first service appt. They're a bit pricey, but they provide good coverage and look great!

[ajensen383]

24 minutes ago, ShotgunZ71 said:

Seems like for what I do, a Max Tow may be the best bet. Definitely would go with the CC 6.5' setup, too!

The CC 6'-6" box set up has a slightly lower tow rating than the 5'-8" bed of (11,700lbs) , due to them having the same GVWR of 7600lbs.. Not sure how much you are towing for it to be a consideration...

[ShotgunZ71]

9 minutes ago, ajensen383 said:

The CC 6'-6" box set up has a slightly lower tow rating than the 5'-8" bed of (11,700lbs) , due to them having the same GVWR of 7600lbs.. Not sure how much you are towing for it to be a consideration...

Only thing I tow is a TT, 36', 9000 lbs in tow trim. We go 8-9 times a year and usually less than 100 miles.

[michigan2500hd]

Will prob get mud flaps to limit tire spray and rock chips etc. 
 
any mudflap recommendations?

I have the OEM mud flaps and I've been happy with them so far. I think they look better than the aftermarket ones I've seen. I've always hated flaps (for looks) but they sure help save the paint.

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[michigan2500hd]

In the interest of saving some $$$ and not having to buy new wheels and tires...
 
I think I'll put these 2012 wheels on my 2018 and put the stock 97 wheels back on the 97. 
 
17" wheel is the smallest that will fit on a K2XX right?
 
 
 
 

If your 2012 wheels are stock don't forget they will reduce your track width by 6 mm reach side. It's not much but noticable to some people, myself included. 2014 and up are +24 backspacing where as the 2013 and older are +31. Just a FYI.

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[2018GMC]

57 minutes ago, michigan2500hd said:

If your 2012 wheels are stock don't forget they will reduce your track width by 6 mm reach side. It's not much but noticable to some people, myself included. 2014 and up are +24 backspacing where as the 2013 and older are +31. Just a FYI.

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Thanks for the info. So the 2012 wheels will be recessed in the fender well more? Hmmm I guess I’ll try mounting them on the 2018 and test drive before I commit to installing TPMS sensors in them. 

 

Just have to wait At least two weeks since my hernia surgery restricted me to 20 lbs max. The bfg k02 load range e are 58lbs + whatever the wheel weighs. 

[michigan2500hd]

Thanks for the info. So the 2012 wheels will be recessed in the fender well more? Hmmm I guess I’ll try mounting them on the 2018 and test drive before I commit to installing TPMS sensors in them. 
 
Just have to wait At least two weeks since my hernia surgery restricted me to 20 lbs max. The bfg k02 load range e are 58lbs + whatever the wheel weighs. 

Yes as I understand it the wheels will sit inward slightly. Like maybe a total of 14 mm. Probably not a big deal, especially if you already have the wheels. I'd like to see pics of you do it because I'm looking for some stock 17" wheels and most of what I'm finding are for the GMT900's.

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[Kubs]

I thought GM changed the bolt pattern somewhere around 2010.  Or is that just the 3/4 ton and up 8 lug?

[Mike GMC]

If you have a minute would you please post a pic of the rear diff cover showing the number of bolts?  I'm curious as to what rear axle is used in the max tow package.  Thanks in advance.

[ajensen383]

48 minutes ago, Kubs said:

I thought GM changed the bolt pattern somewhere around 2010.  Or is that just the 3/4 ton and up 8 lug?

Nope... GM truck bolt pattern has been the same on 1/2 ton trucks since 1988 .. 6 x 5.5 (139.7mm)

[ajensen383]

3 hours ago, Mike GMC said:

If you have a minute would you please post a pic of the rear diff cover showing the number of bolts?  I'm curious as to what rear axle is used in the max tow package.  Thanks in advance.

On the K2xx there are 12 bolts...on the GMT-900 they have 14

[Mike GMC]

So the max tow has the same axle my All Terrain has, just a different gear ratio. I thought I had read somewhere that the max tow got a stronger rear axle.  Not that it would need it, 9.5" ring gear, 33 spline semi floating axles should be plenty.  Did GM use the old 10 bolt in any of the K2xx trucks?

[ajensen383]

2 hours ago, Mike GMC said:

So the max tow has the same axle my All Terrain has, just a different gear ratio. I thought I had read somewhere that the max tow got a stronger rear axle.  Not that it would need it, 9.5" ring gear, 33 spline semi floating axles should be plenty.  Did GM use the old 10 bolt in any of the K2xx trucks?

No, the Max tow gets the 9.76" ring gear instad of the 9.5"...lol.. yeah a 9.5" ring gear is pretty much overkill for anything a 1/2 ton can do...

 

I was pretty bummed that my 2018 has less cover bolts than my 2011 and it is rated higher tow

[ajensen383]

Just had to update.. GMT-900 max tow has 14 bolt rear cover and a 9.5" ring gear, 2018 Max Tow has 12 bolt rear cover and a 9.76" ring gear