93lexES300

iTrader: (1)

Thanks for all the replies guys, I'll take it to another shop this weekend to see what we get, and yes they had all the sensors mounted up and the specs are for a 1991 LS400 without air suspension. The spec sheet from my car is as below:

19psi

ther'es your problem. never go to that shop again until they hire an alignment guy who knows how to read the numbers!
look at your front toe.
left front=-0.05 right front= -0.01

look at the specified range. it's 0.00 to 0.20.

yoiur front toe is out of spec!

93lexES300

iTrader: (1)

.01 difference would not cause this much wear in a couple months though.

jcrome04

Maybe you can get the tires replaced under defect...

How long have you been running the tires on this application? How many miles?

93lexES300

iTrader: (1)

I've run them on this car for under 2k miles, measuring the tire tread it's still at like 80% overall, except for this....

ffcgary1

well according to the workshop manuel the settings that your car have been set to are incorrect , not by much, but enough to scrub the tyres out, the camber should be = 0.08
caster = 9.17
toe in =0.04
all measurements in degrees Download the settins from the workshop manuel and take the fig to the allinment shop and tell them to set at thos specs.Oh and while your at it ask the original shop to replace the shagged tyres as they cocked up the job.

19psi

incorrect toe causes the most tire wear of all suspension settings. even small amounts cause wear espeically if htey're not even. since one side is different from the other side, they are essentially working against each other and the steering wheel causing more wear than simply the one tire out of spec alone would.

PureDrifter

iTrader: (10)

for my '99 the toe was set to 0 all around, took the mech a while to get it but it was worth it.

fyi, the manual (at least for my car) has the specified range for front toe as being positive (toe-in), not at all below 0 or the toe-out your alignment shop gave you...