The spare tire I have is a smaller sized tire. If I were to get a flat on a rear axle tire I think it would be best to place a good front tire on the rear and use the spare on a front axle tire. Your thoughts?
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
Running with a smaller sized spare tire
- Thread starter wazzabie
- Start date
That is correct. Put the incorrect size tire on the free wheeling axle, it causes extra work but prevents potential damage.
I'm going to drop the factory spare tire and check it for air pressure. I'm also going to see if the factory spare jack can lift my truck with the current oversized tires and lift mods I have on the truck. I may need to get a different spare tire jack.
Whats size difference? 2-3” should be fine (ie: 33’s with 31” spare) but the bigger the gap, the sketchier it would be to actually drive at any sort of speed
If the surface is loose, the tire slips better less harm. asfault or similar would be rough on a drive axle
I think choice of spare depends partly on how far you drive and how hard it is to get a real replacement tire. Anything works for a spare to get back to your trailer, but if you're road tripping a holiday weekend you might be driving all day on the weird tire.
If you have AAA, you can get towed 100 miles.
If you have AAA, you can get towed 100 miles.
I had a slow tire leak on a BFG A/T KO2 and was able to drive about 45min to the nearest gas station for a quick repair.
Actually if you don't have a locker in the rear, it's safer to keep the front tires same size and the rear differential will take the slack, it won't even feel it.
It's dangerous to drive with different size front tires.
But you can choose to do whatever you want.
I have the G80
Cars have been running donut spares for decades. I think part of the logic is that those tires are so terrible nobody can really run them for long enough to wear a differential. Of course the manual tells you to put it in the back, but with FWD the steering and drive axle are one and the same.
I think your individual circumstances will choose for you. If you are off the beaten path, you may need better traction in the rear, the road isn't level anyway, and you are constantly steering around potholes regardless, so put the good tires in the rear. If you are looking at mostly paved roads to get to a tire shop, then steering straight may be more important, so put the good tires up front.
Just get the correct size spare and be done with it.
I'm not sure the oversized tire will fit in the factory spare tire location.
I would give it a shot if you haven’t already . I was pleasantly surprised to find the almost 34” tire fit in the stock spot in my grand Cherokee.
A 31” tire was as big as I could squeeze into my ‘75 K5 on the stock tubular spare tire mount in the passenger side rear. Even then the tire touched the gate and the seat back at the same time.
Outside of laying it flat in the back putting a bigger tire inside was about the only way I could go.
Outside of laying it flat in the back putting a bigger tire inside was about the only way I could go.
Yeach 31" was the biggest we got in a 73 k5.
But my suburban took a 33" no problem
But my suburban took a 33" no problem
Time for a tire carrier then
Depends on the true tire size of course. Im drawing a blank, but some peeps have fit 32’s and 33’s back there, redrilling one of the pieces
