Quote:
Originally Posted by island911
Passing on the words of a tire salesman, eh? Those guys gave up careers in rocket surgery to save the center diffs, right? 
IOW, If that were true, every truck, with a heavy engine over the (lower pressure) front tires and little weight over the rears would be grenading center diff's.
IOW 2, the effective radius, due to tire pressure, varies more than a 32nd of wear . . .and still center diffs handle it with ease. If that scares you, do NOT do the math on difference in radii of going around corners - else you'll never steer again.
Bottom line: put the new ones on (I would put them up front) and move on.
Edit: So, yes, HD, you are smart to consider that the tech might have been full of baloney. |
Nope, working in alignment and with ASE techs for 20+ years - and seeing Subie after Subie, along with a few others (yes a Toyota Landcruiser 100 - same as a Lexus LS470) with damaged center diffs which happened after the owners replaced 2 tires.
AWD is significantly different than your 2WD/4WD trucks that you are talking about it.
Edit - checked with the guys in the back - a Highlander (which I think is about a RX 450) not a Landcruiser - my error.