Am I right?

[2500 Cummins]

Ok, my stockers are the Michelin LTX A/S 265/70/17 with an overall diameter of 31.4".

LTX A/S: Browse Tires in Light Truck: MICHELIN® Tires: Michelin Tires


I'm going to the Nitto Terra Grappler 285/75/17 with an overall diamter of 33.8".


Nitto Tire - High Performance Tires for Car and Truck Enthusiasts


Am I correct in assumming that this will only raise my truck 1.2" ? 33.8-31.4= 2.4"/2= 1.2"


I want to go up in size over the stockers, but can't go too high because of my garage clearance. I currently have 4 1/2" to spare between the garage door frame and the cab.


Thanks

[KhakiCummins]

Yes, your math would be correct on that. :thumbsup

[2500 Cummins]

Thanks..........

[lvin4jc]

That's how i'd figure it, depending on how close your clearance is don't forget to add the new tread depth against your worn out stockers :thumbsup

[ESAFO]

if 285z r 33z, would 305z fit under stock truck with no rubbing?

[lvin4jc]

Originally Posted by ESAFO

if 285z r 33z, would 305z fit under stock truck with no rubbing?

If I understand, your asking about a 305/315 tire? If so you can fit it, but it will take a leveling kit to keep it from rubbing too much.

[ESAFO]

there is such an animal as a 295? would that fit under stock 2500 qc 4x4 04.5

[2500 Cummins]

Originally Posted by lvin4jc

That's how i'd figure it, depending on how close your clearance is don't forget to add the new tread depth against your worn out stockers :thumbsup

Stockers are about half worn and I thought about that. But, I have 4 1/2" to spare so I should be ok? That leaves about 3" of cushion for new tread depth.

[lvin4jc]

Originally Posted by 2500 Cummins

Stockers are about half worn and I thought about that. But, I have 4 1/2" to spare so I should be ok? That leaves about 3" of cushion for new tread depth.

sounds like you'll be fine