2500 Suburban full size spare

06Burb

Member
For y’all with suburbans, I’m looking for ideas of running a sprare that doesn’t hang to low underneath. I just switched to H2 wheels with 285/70-17’s and I believe if I mount the 5th one under my truck it’s going to get smacked off-road. This is also my dd, so I need something practical too. Should also note, I have the secondary fuel tank in my 2500 that I didn’t have in my 1500 Yukon XL (the 285 fit high and snug).
 
Last edited:

Martinjmpr

Wiffleball Batter
You could just run a stock size 265/75/16 tire on a steel wheel. It's slightly smaller than the 285s you have now but will work in a pinch and get you home.
 

06Burb

Member
You could just run a stock size 265/75/16 tire on a steel wheel. It's slightly smaller than the 285s you have now but will work in a pinch and get you home.
That’s what I have now, it’s 1 1/4” smaller plus I have a G80 locker. If I have a rear flat, could always move one from the front, then deal with the abs. I’m looking to put a 285 on my 5th H2 wheel.
 

bigdogyj

Member
I’m about to embark on the same spare tire issue. Planning to run 285s on h2’s. Have you tried to put it underneath in the stock location? I don’t really plan on off-roading in the suburban (got a Jeep for that). But curious how it fits. Thx.
 

06Burb

Member
I’m about to embark on the same spare tire issue. Planning to run 285s on h2’s. Have you tried to put it underneath in the stock location? I don’t really plan on off-roading in the suburban (got a Jeep for that). But curious how it fits. Thx.
I have steel rim with a 265 now, it hangs a bit low since I have the second fuel tank above it. I know the 285 will fit, but I’m concerned about hanging too low. I spoke with a friend and I may have him fabricate a swing away that mounts to my Ranch Hand bumper.
 

rayra

Expedition Leader
I did some 'departure angle' looking around a while back and the underslung spare was well clear of the angle from rear wheels to bottom of the rear bumper. And VERY far away from the crappy angle to the bottom of the hitch receiver. IIRC it was something piss poor like 27deg. You'd have to really be crawling thru a boulder field to come close. Even a 285 is only going to make the lower sidewall ~3/4" closer to the ground than a stock tire.
Put it under there, stick the end of a broom handle down under the back bottom of the rear wheels and check the angles yourselves.
@CrazyDrei should have some direct experience to relate on the issue. ;)

hitchwork16.jpg
hitchwork15.jpg



That huge rear overhang on the Sub is a problem in rough terrain. Depends where you intend to drive it, I guess. The departure angles are so bad that it convinced me that I need to relocate my 7-pin connector into the bumper instead of hanging down off the hitch. And for a while I even removed the hitch bar altogether.

hitchwork14.jpg


hookinstalled.jpg


But it's my daily driver and on the asphalt 99% of the time, so I ultimately put the hitch bar back on.
 

06Burb

Member
I did some 'departure angle' looking around a while back and the underslung spare was well clear of the angle from rear wheels to bottom of the rear bumper. And VERY far away from the crappy angle to the bottom of the hitch receiver. IIRC it was something piss poor like 27deg. You'd have to really be crawling thru a boulder field to come close. Even a 285 is only going to make the lower sidewall ~3/4" closer to the ground than a stock tire.
Put it under there, stick the end of a broom handle down under the back bottom of the rear wheels and check the angles yourselves.
@CrazyDrei should have some direct experience to relate on the issue. ;)

hitchwork16.jpg
hitchwork15.jpg



That huge rear overhang on the Sub is a problem in rough terrain. Depends where you intend to drive it, I guess. The departure angles are so bad that it convinced me that I need to relocate my 7-pin connector into the bumper instead of hanging down off the hitch. And for a while I even removed the hitch bar altogether.

hitchwork14.jpg


hookinstalled.jpg


But it's my daily driver and on the asphalt 99% of the time, so I ultimately put the hitch bar back on.
Great investigative work! Here’s a pic of my 265 hanging underneath.
 

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CrazyDrei

Space Monkey
Hitch mounted spare tire carrier

My buddy with the Denali took his spare tire off to make room for 5 airhorns, 2gal air tank and a compressor, truck sounds cool but he now does not have a spare and on top of that his back area is filled with so much junk that he doesn't have any room for a spare tire. When we went on one of our trips he wanted to bring a spare tire but did not want to put it on the roof or clear out his trunk area for it. Spending $1,000 on a built spare tire carrier that would be used temporarily was not an option so I built this hitch mounted spare tire carrier for him.

ti3PfgG.jpg


Rear view, it blocks the license plate a little but after two long trips we did not have any issues with law enforcement.

dIIrYTk.jpg


Another angle.

Curt 31006 hitch mounted spare tire carrier $80
https://www.ebay.com/itm/Curt-31006...ash=item5d405a8d0c:g:CTkAAOSwOA1aDYJr&vxp=mtr

Folding hitch shank adapter $30
https://www.ebay.com/itm/DEAL-500LB...ash=item2a70332223:g:iTwAAOSw-kdXz3Mt&vxp=mtr

Hitch anti-rattle bracket: $10
https://www.ebay.com/itm/Hitch-Tigh...ash=item212d97e663:g:7QwAAOSwRkRZwOdL&vxp=mtr

Curt anti rattle pin kit 22321: $11
https://www.ebay.com/itm/CURT-22321...391367289097?_trksid=p2349526.m4383.l4275.c10

I cut the horizontal arm of the tire carrier off, inserted it into the vertical arm of the folding shank and bolted everything together. Anti-rattle pin and anti-rattle bracket in the shank to receiver connection. I cut approximately 1/2" on passenger side of the tilting mechanism to allow movement without removing the tire as well as a resting place for the bolt so the tire can tilt out of the way. And welded a nut on the front area for a tension bolt to screw in to keep the vertical tire carrier arm under tension. Finally I used an old 2" wheel spacer bolted to the curt 31006 with 3 bolts to offset the wheel enough to clear the truck lift gate.

x8fK2eI.jpg

Side view in locked position

WI2tCo4.jpg

Side view in open position.

QM9gsPk.jpg

Side view with tailgate open to show clearance.

We put my 35" spare which weighs about 100lbs on it and I carried the little 33" spare. two trips and nearly 1,000 miles, 300+ in the dirt the carrier worked flawlessly. $130 and an hour of grinding cutting, bolting and welding got me a great light weight carrier that anyone can make and can easily be removed when not in use.
 

CrazyDrei

Space Monkey
I did some 'departure angle' looking around a while back and the underslung spare was well clear of the angle from rear wheels to bottom of the rear bumper. And VERY far away from the crappy angle to the bottom of the hitch receiver. IIRC it was something piss poor like 27deg. You'd have to really be crawling thru a boulder field to come close. Even a 285 is only going to make the lower sidewall ~3/4" closer to the ground than a stock tire.
Put it under there, stick the end of a broom handle down under the back bottom of the rear wheels and check the angles yourselves.
@CrazyDrei should have some direct experience to relate on the issue. ;)

hitchwork16.jpg
hitchwork15.jpg



That huge rear overhang on the Sub is a problem in rough terrain. Depends where you intend to drive it, I guess. The departure angles are so bad that it convinced me that I need to relocate my 7-pin connector into the bumper instead of hanging down off the hitch. And for a while I even removed the hitch bar altogether.

hitchwork14.jpg


hookinstalled.jpg


But it's my daily driver and on the asphalt 99% of the time, so I ultimately put the hitch bar back on.

Rayra,

With a 2500 there is an extra tank above the spare tire winch, and the cross members that hold the spare are lower on the frame than 1500 trucks. You can loose the spare tank, cut out the cross members and relocate the spare tire up 6-8" like I did which will completely hide a 35x12.5" tire but it does not seem to be a reasonable option for the OP.
 

CrazyDrei

Space Monkey
For y’all with suburbans, I’m looking for ideas of running a sprare that doesn’t hang to low underneath. I just switched to H2 wheels with 285/70-17’s and I believe if I mount the 5th one under my truck it’s going to get smacked off-road. This is also my dd, so I need something practical too. Should also note, I have the secondary fuel tank in my 2500 that I didn’t have in my 1500 Yukon XL (the 285 fit high and snug).

06Burb,

Realistically your 2500 will never really be able to go far enough off road that you will need the H2 wheels and tires to get back. I would keep the small spare where it is and keep the H2 spare at home. If you do need to change your tires on the trail, keep the rears the same and put the donut on the front.

I have 37" tires all around and carry a 35" donut spare, it's the biggest I can fit under there. Can't use 4x4 with mis-matcing tires, but it has gotten me home two times, both over 200 miles.
 

06Burb

Member
06Burb,

Realistically your 2500 will never really be able to go far enough off road that you will need the H2 wheels and tires to get back. I would keep the small spare where it is and keep the H2 spare at home. If you do need to change your tires on the trail, keep the rears the same and put the donut on the front.

I have 37" tires all around and carry a 35" donut spare, it's the biggest I can fit under there. Can't use 4x4 with mis-matcing tires, but it has gotten me home two times, both over 200 miles.
Thank you for your responce! Watching your shenanigans is always a treat!! I’ve been looking at the hitch carriers but with my ranch hand rear bumper, it’s going to stick out too far. I agree about leaving the H2 spare at home. If it’s one of those things I just can’t find myself living without, I’ll have my fabrication friend make up one that’ll mount to my existing bumper. Like you, my future will make this strictly my overland/weekend vehicle.
 

06Burb

Member
Hitch mounted spare tire carrier

My buddy with the Denali took his spare tire off to make room for 5 airhorns, 2gal air tank and a compressor, truck sounds cool but he now does not have a spare and on top of that his back area is filled with so much junk that he doesn't have any room for a spare tire. When we went on one of our trips he wanted to bring a spare tire but did not want to put it on the roof or clear out his trunk area for it. Spending $1,000 on a built spare tire carrier that would be used temporarily was not an option so I built this hitch mounted spare tire carrier for him.

ti3PfgG.jpg


Rear view, it blocks the license plate a little but after two long trips we did not have any issues with law enforcement.

dIIrYTk.jpg


Another angle.

Curt 31006 hitch mounted spare tire carrier $80
https://www.ebay.com/itm/Curt-31006...ash=item5d405a8d0c:g:CTkAAOSwOA1aDYJr&vxp=mtr

Folding hitch shank adapter $30
https://www.ebay.com/itm/DEAL-500LB...ash=item2a70332223:g:iTwAAOSw-kdXz3Mt&vxp=mtr

Hitch anti-rattle bracket: $10
https://www.ebay.com/itm/Hitch-Tigh...ash=item212d97e663:g:7QwAAOSwRkRZwOdL&vxp=mtr

Curt anti rattle pin kit 22321: $11
https://www.ebay.com/itm/CURT-22321...391367289097?_trksid=p2349526.m4383.l4275.c10

I cut the horizontal arm of the tire carrier off, inserted it into the vertical arm of the folding shank and bolted everything together. Anti-rattle pin and anti-rattle bracket in the shank to receiver connection. I cut approximately 1/2" on passenger side of the tilting mechanism to allow movement without removing the tire as well as a resting place for the bolt so the tire can tilt out of the way. And welded a nut on the front area for a tension bolt to screw in to keep the vertical tire carrier arm under tension. Finally I used an old 2" wheel spacer bolted to the curt 31006 with 3 bolts to offset the wheel enough to clear the truck lift gate.

x8fK2eI.jpg

Side view in locked position

WI2tCo4.jpg

Side view in open position.

QM9gsPk.jpg

Side view with tailgate open to show clearance.

We put my 35" spare which weighs about 100lbs on it and I carried the little 33" spare. two trips and nearly 1,000 miles, 300+ in the dirt the carrier worked flawlessly. $130 and an hour of grinding cutting, bolting and welding got me a great light weight carrier that anyone can make and can easily be removed when not in use.
Great idea & detail!!
 

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