35'' tire on stock carrier
12-14-2009, 02:00 PM
#11
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12-14-2009, 04:50 PM
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12-15-2009, 09:31 AM
#13
JK Super Freak
I have just installed my new 35's on stock 17'' rims. i also just ordered a extension bracket from northridge 4x4 to allow me to put the spare on the stock carrier. this is a temporary fix until i can afford a new bumper with tire carrier. are there any problems with running a 35 on stock carrier ie. tail gate sagging, carrier falling off. i know it sounds funny, but this new spare weighs a ton. let me know.
For a few weeks, I recently ran a 35" MTZ spare on an extension bracket on the stock tailgate - bad idea. The tailgate creaked and made a echoing noise on every road bump, let alone any off-road.
This is my daily driver so before any tailgate damage, I took the spare off, now carry a plug kit, and will soon be ordering a real rear bumper with tire carrier.
Maybe your tailgate will be ok, but doubt it....
12-19-2009, 02:08 PM
#15
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03-07-2010, 10:28 AM
#16
JK Super Freak
If you have different diameter tires on a drive axle it can be an issue when the smaller tire goes faster, and gets all the torque, so you have only the little tire propelling you the entire time.
If you have a locker on it, both tires get the same rotation speed, but one is going further (The bigger one), which turns you towards the little one.
On off camber situations, etc, this can shift your line constantly as the rig tries to essentially steer towards the smaller tire's side.
If you set the air'd-down diameters to match, you can compensate for this effect by making the FINAL diameters equal.
If you have a locker on it, both tires get the same rotation speed, but one is going further (The bigger one), which turns you towards the little one.
On off camber situations, etc, this can shift your line constantly as the rig tries to essentially steer towards the smaller tire's side.
If you set the air'd-down diameters to match, you can compensate for this effect by making the FINAL diameters equal.
03-07-2010, 10:49 AM
#17
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Popping, sagging and anything else you could think of with mine. At first, it was fine. Then after I went wheeling in it a couple of times, it got worse and worse. Get a rear bumper with swing arm, it is definately worth it. Or, dont carry a spare until you do.
03-07-2010, 01:58 PM
#18
JK Junkie
A simple way to decide is to remove your spare and inspect closely how the spare mounts on the tailgate, how the tailgate is constructed and how strong the hinges are. On mine the door has a preload upwards, so when I remove the spare the I have to push down and in to close it. All of the parts are quite flimsy. 
The stock spare weighs about 60-70 lbs and depending on your new wheel and tire combo, so go up as high as 110 lbs with a longer moment arm because larger tires need to stick out further.
It's your call if you think the tailgate can handle the extra static and dynamic loads.
What ever you make sure the tire doesn't bounce on the tailgate by installing longer bump stops such as the Daystar units.
The stock spare weighs about 60-70 lbs and depending on your new wheel and tire combo, so go up as high as 110 lbs with a longer moment arm because larger tires need to stick out further.
It's your call if you think the tailgate can handle the extra static and dynamic loads.
What ever you make sure the tire doesn't bounce on the tailgate by installing longer bump stops such as the Daystar units.