Does anybody see a problem with running two different types oftires even though theyare thesame size? i.e. winter tires on the front,all-terrains onthe rear.A mechanic told me that it can damage the transmission and transfer case and that suppliers won't evenselljust two tires for an AWD vehicle, you have to get all four. I can see handling maybe being affected or traction control problems if the tires had very different tread types. I get the feeling that he was just trying to sell me some new tires.

 

rovers are full-time 4wd not AWD. I don't see a problem with it but I would keep it below 65mph on the road...just for safety.

 

Rover stock differentals have weak spider gears and 2 tread designs, means to different traction , means you may blow your diffs.

 

To add to what Mike said...different rolling resistance between the two tires will put more stress on the drivetrain.
If it were a emergancy, ok, but not for the long term.

 

Mike & Spike (sounds like a cartoon my 8-yr old would watch)

What about running different air pressures...does that make a difference in rolling resistance? I would assume that a higher air pressure would have a lower resistance. Also, are we not supposed to run a lower air pressure in the front (or do I have it backwards)?

Thanks in advance!

 

We are kinda like Itchy and Scratchy.

For DII's LR recommends 28 PSI front and 38 PSI rear. 46PSI rear when loaded to max weight.

I get what you are driving at, and I still would not run two different tires on the truck.
Running snows on one axle and not the other is counter productive anyway.

 

Rover sets the air standards to give the best ride and to handle the weight of the vehicle, the rear being nearly 500 pounds heavier then the front.
Most people I know, especially those who wheel a lot and or have lockers, always run the same air pressure front and rear to lessen the strain on the drive train.