33" spare tire fit

[Carolina Brown]

Has anyone tried fitting a 33" spare into stock position? I hate having to rely on AAA if ever get a flat especially if I'm out wheeling. Worst case I'll have to put it in the cabin but then I lose passenger space and cargo space plus who wants a 90lb missile inside the cabin in the event of an accident. I've seen posts about thousand dollar bumper mounts but that's not realistic for my budget right now.

 

[MassHoe04]

I just have stock 265/70 R17 on my Z71, but here is a guy who put 315/75 R16 (34.6" diameter) under his 04 Silverado 2500HD...

Max spare tire size?

Hi all, New member here. Just bought an '04 2500HD 4x4 yesterday. Has anyone successfully fitted a 315/70R17 (35") tire in stock location between frame rails? Searched around for a bit and didn't have any luck. Thanks!

www.gm-trucks.com

Maybe the undercarriage is substantially different on the 2500HD where the spare sits. I don't know. Others can tell you what the deal is on ours.

Keep in mind that the wider tire you are looking to stow under the truck might cut down on your departure angle clearance. Having the spare underneath might be fine, but would it be an issue if you are hung on a rock or tree stump as a result of the spare hanging low?

If I were serious about riding trails or crawling rocks, I might think about welding up some kind of custom carrier. Rooftop? I also saw a neat discussion thread by a guy that made up a custom swing-out carrier mounted on the back bumper. That was cool!

 

[Carolina Brown]

Good point (departure angles)….. I think I will mount a 33” in the stock location (assuming it fits) and when I hit the trails remove it to the interior and afterwards put it back under truck.

I need to go down to NC next month and there are a lot of used tire places that can help me with a 33” spare to fit the 16” steel rim that came with the truck.

 

[DirtDigler]

I've had mine on a roof rack but it is very difficult to get it down. I ended up putting it in the cargo area, passenger side, standing up with a ratchet strap, tied to tie down and seat frame. Not a lot of space lost.

 

[Carolina Brown]

@DirtDigler..what size spare is it that you use? How did you secure it to the roof when you tried that?

I'm really leaning toward getting a used tire while I'm down south and mounting it in stock location...the stock tire is 10" wide and the 255/85/R16 is 10" wide, so no big worries for deterioration in departure angle...but is .4 inches smaller in diameter than my current tires...so long as I stay under 50mph and treat it truly as a spare, I think it will be fine...but the tire size is rare...I don't know if I'll find a used one...the only other one that's close is a 295/75/R16, it is a match in height to my current Yoko's but it is 1.6" wider than stock so may degrade departure angles....we'll see.

 

[DirtDigler]

315/75/16. Definitely doesn't fit underneath!

 

[S33k3r]

I also saw a neat discussion thread by a guy that made up a custom swing-out carrier mounted on the back bumper. That was cool!

You don't happen to have a link to that, do you? My Silverado 2500 has a 26 Gallon tank; it gets about 11 MPG (in town). The MPG doesn't kill me as much as it should -- I work from home -- but the range is annoying. So with a spare tire mount OTHER than under the bed, I could add an additional tank. Thanks!

 

[MassHoe04]

You don't happen to have a link to that, do you? My Silverado 2500 has a 26 Gallon tank; it gets about 11 MPG (in town). The MPG doesn't kill me as much as it should -- I work from home -- but the range is annoying. So with a spare tire mount OTHER than under the bed, I could add an additional tank. Thanks!

Pretty sure this is what I saw...

 

[MassHoe04]

I want a welder soooo bad now...

 

[Joseph Garcia]

When I installed my Gibson Extreme cat-back dual exhaust system, I had to give up my spare tire, due to clearance issues with the dual exhaust system. I was willing to give up my spare tire for that exhaust system, but I protected myself with this kit.

Please note that I do not go off-road with my truck.

 

[Alex_M]

I want a welder soooo bad now...

A hundred bucks will buy you a used flux core, a cheapie hood, and your first roll of wire if you're thrifty. A super, super worthwhile investment. You can do a lot with those cheap welders if you practice.

 

[Rayyy]

I’m pretty sure that a 33” tire does fit if you trim the back end of the tow hitch bracket.

 

[Carolina Brown]

I got the tire and it did NOT fit under the seat. I took out the third row seat and set the tire flat on the floor. I then got some chain and a hard shackle (D ring w/pin) and wove the chain through bolt holes of rim and through the seat anchor in floor. Hi lift jack is secured the same way. I don't want the heavy stuff flying around in a rollover or accident. I used a factor of 5 for weight of items to size capacity for chain and hard shackles. It's not elegant but it is certainly functional! I hate that I lost my 3rd row of seating, but those stupid swing out hitches that mount to your hitch were not the best solution IMO. They rattle and I wouldn't feel comfortable towing through it or doing recovery with it. My opinion.

 

[Carolina Brown]

I’m pretty sure that a 33” tire does fit if you trim the back end of the tow hitch bracket.

lol...True but taking material off my hitch or frame without compensatory reinforcement isnt a road I want to travel down.

 

[Rayyy]

lol...True but taking material off my hitch or frame without compensatory reinforcement isnt a road I want to travel down.

lol... You wouldn't be touching the frame. The trimming is on the backend of the hitch that sticks out, pokes out toward the tire... and does not impact structural rigidity at all.

Here is a thread you might like to read:

Spare tire

Sweet Barn Doors. What is that thing mounted to the inside of the door? Based of the Crown Vic next to it I'd say some red and blues. Or at least yellow and blue. Some kind of flashing light bar.

www.tahoeyukonforum.com

 

[corvette744]

lol... You wouldn't be touching the frame. It's a fairly common mod. The trimming is on the backend of the hitch that sticks out, pokes out toward the tire... and does not impact structural rigidity at all.

Here is a thread you might like to read:

Spare tire

Sweet Barn Doors. What is that thing mounted to the inside of the door? Based of the Crown Vic next to it I'd say some red and blues. Or at least yellow and blue. Some kind of flashing light bar.

www.tahoeyukonforum.com

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Yes a 33 inch 275-60r-20 duratrac with big nobby tires does fit thats my post and pics.you see the amount i had to cut off the rear of the hitch does not affect anything and fits snug as a bug.If you didnt have the big nobbies i bet it would fit better.Its really a tad over 33 inflated to 45 psi.If i remember it was 2 cuts one i had to angle so the tire went up easier.

 

[Carolina Brown]

Yes a 33 inch 275-60r-20 duratrac with big nobby tires does fit thats my post and pics.you see the amount i had to cut off the rear of the hitch does not affect anything and fits snug as a bug.If you didnt have the big nobbies i bet it would fit better.Its really a tad over 33 inflated to 45 psi.If i remember it was 2 cuts one i had to angle so the tire went up easier.

Interesting….

I think I need to revisit this.

What did you use to make the cut?

How’s departure angle? Does the tire rub/grind going over obstacles?

Maybe I’ll leave it under there for daily driving and then put inside cabin when off-roading

 

[corvette744]

Interesting….

I think I need to revisit this.

What did you use to make the cut?

How’s departure angle? Does the tire rub/grind going over obstacles?

Maybe I’ll leave it under there for daily driving and then put inside cabin when off-roading

Does not rub grind over any obstacles-fits just like factory.Sawzall with new blade.departure angle comes straight down and up.Just fits by the smallest of space but again this is a 33 inch duratrac one with 20,000 miles would fit alot easier.Im actually going to take a rear tire and rim off that i had to plug. I am going to put that in the spare and send that one up and buy 1 new tire soon after winter.They have about 15-20000 miles and look new.

 

[Carolina Brown]

lol... You wouldn't be touching the frame. The trimming is on the backend of the hitch that sticks out, pokes out toward the tire... and does not impact structural rigidity at all.

Here is a thread you might like to read:

Spare tire

Sweet Barn Doors. What is that thing mounted to the inside of the door? Based of the Crown Vic next to it I'd say some red and blues. Or at least yellow and blue. Some kind of flashing light bar.

www.tahoeyukonforum.com

View attachment 389454View attachment 389455

This is my project for this Saturday!!!!

 

[Carolina Brown]

Well that was a fail. I couldn’t wait until Saturday.

The tire diameter didn’t touch the cut hitch and it barely touched the brake line on panhard bar. But the thickness of tire was having problems going much higher into the truck. It was hanging kind of low and I didn’t trust it against brake line and trailer PIN wiring.

I put it back inside truck.