Will it fit?? LT375/65R16

[GreatDaneHummer]

Ok guys, here goes: Will the new Mickey Thompson LT375/65R16 Radial SLT MTZ fit on the H3?? The height is not an issue but I think the width of 15" might be a problem? What would be the correct offset for 16x10" rims?

 

[H32NV]

Ok guys, here goes: Will the new Mickey Thompson LT375/65R16 Radial SLT MTZ fit on the H3?? The height is not an issue but I think the width of 15" might be a problem? What would be the correct offset for 16x10" rims?

This is something that discount tire might be able to calculate the appropriate spacer/offset combo for you from a standard table, but do you really want to go this route? a 15" wide tire will present more of the same challenge that we all face when we upgrade to standard 35's(375/75/16), the increase in rotational intertia and the change in circumference cause strain on the engine and trans and brakes, and mpg's. If you are going to spec a tire with the same disadvantages as a 35, I would ask yourself if an extra inch of width is worth it. I'm quite happy with the 12.8 or so that the MTR offers in this size range. Are you going to supercharge it?

 

[SuperBuickGuy]

that would require some sawzall trimming. the 12" (315/75 16) rubs the sway bar with a 4" offset. Taking that as the baseline, there isn't 3" of room on the rear for the tire to clear. Remember, it's not just about turning while the vehicle is stationary, it's turning when you're at speed around a corner... 315 barely clears (some would say not with the sway bar rub)...
that said, it would be nice to get more floatation

 

[GreatDaneHummer]

Bummer... I was really hoping for quality flotation to turn my Hummer H3 into a house boat. I guess I will have to stick with 37x12.5R17 for a little while longer.

 

[SuperBuickGuy]

whatever floats your boat

 

[rsc]

You would need a 1-1/2" wheel spacer or wheel with 4" of backspacing for that tire to clear. At that offset and width you will probably need to do a little trimming of the fender liner up front for clearance at full lock and articulation.

 

[GreatDaneHummer]

I did just a 5.5 back spacing wheel and went with the 37x12.5x17 mickey thompson baja claw ttc's like we talked about. Hopefully everything clears ok.

 

[rsc]

I did just a 5.5 back spacing wheel and went with the 37x12.5x17 mickey thompson baja claw ttc's like we talked about. Hopefully everything clears ok.

You will be fine. That tire will be just as wide as the 315/75r16 everyone likes to run, but taller so no new issues on the sway bar. Keeping your backspacing at 5.5" will keep things tucked in tight and you should have less rubbing on the outside of the fender liner at full lock/articulation than I did with 4.8" backspacing and lightly used 37x12.5r17 MTR's. Sounds like you have a good combination there.

 

[GreatDaneHummer]

Now that I have a second suv to drive this is turning into my toy. Did you drive with your 37's much prior to doing the 1" body lift? Is it functional without the body lift?