SCWB

Without changing the suspension control arms, what other parameters can they be adjusted beside front toe angle?

Rear Toe?

Front Camber?

Rear Camber?

Jeff Lange

iTrader: (1)

Not much can be adjusted on the 2IS at all.

Jeff

SCWB

So, only front toe is all we can??

Jeff Lange

iTrader: (1)

Toe is all that has adjustment, yes. Sometimes alignment shops will push the arm, or shift the subframe a bit to try to correct other issues, but the only actual adjustment on the RWD cars is front and rear toe. AWD cars also have front camber adjustment.

EDIT: As per lobuxracer's reminder, yes front caster can also be changed, but only to one of 3 set positions by replacing the front lower control arm rear bushing. If you need to adjust caster, hopefully one of the other +/- caster bushings will bring it closer to spec.

Jeff

lobuxracer

iTrader: (2)

Not true at all. Front and rear toe are both adjustable on all 2IS models. No camber adjustments, and caster adjustments require replacing the rear LCA bushings, so it's pretty limited and expensive.

Jeff Lange

iTrader: (1)

The front caster can be changed by replacing parts, I don't consider that adjustable, though I reckon that's splitting hairs. It can be changed if you order the +/- offset rear bushings, you are correct about that. Your selection is somewhat limited though.

I meant to say front and rear toe before, my apologies for the omission, I've edited my post for clarity.

Jeff

SCWB

Eh?? REAR Toe can be adjusted????

lobuxracer

iTrader: (2)

Of course. They had to do something for the primary wear angle.

joedad

Check out FIGSENGINEERING.COM and look at their rear "lower" arm camber adjuster and their front "upper" arm "camber AND caster" adjuster, they are awesome, pricey but strong looking. If you need more toe adjustment they also have toe links for added correction.

joedad

Who handles those front lower arm bushings and what are the three settings? My is250 caster is at 6.6 and the factory limit is 8.8 . I want to get as close to 8.8 as possible, I don't want to go over that factory upper limit the lower limit is 7.2. I want my toe at 0.05 combined and camber at -2 to -0.4. I want the rear camber at -0.4 and toe at 0.025ish. I feel that this will give me my best tire wear settings. I've had wear issues especially with the front inner tires.

Jeff Lange

iTrader: (1)

You'd need to buy the bushings from Lexus. +/- 20' is the adjustment range.

RH Lower Arm Bushing/Bracket
+20' : 48075-30040
0' : 48075-30030
-20' : 48075-30050

LH Lower Arm Bushing/Bracket
+20' : 48076-30040
0' : 48076-30030
-20' : 48076-30050

Jeff

joedad

Thanks for the info.. Doesn't the +20' put it way over the factory spec. of 8.8?

Jeff Lange

iTrader: (1)

No, the factory specs are as follows:

2WD:
16in. Wheels: 8°07' +/- 45' (8.12°+/- 0.75°)
17in. Wheels: 8°11'+/- 45' (8.18°+/- 0.75°)
18in. Wheels: 8°04'+/- 45' (8.07°+/- 0.75°)

4WD:
17in. Wheels: 4°38' +/- 45' (4.63°+/- 0.75°)

The important information to take from that is that there are 60' in 1°, so the caster adjustment available via changing the bushing/brackets is +/- 0.33°.

Jeff

joedad

Jeff ..... Great info, Thanks for all the input.
I'm gunna get FIGS rear lower arm camber adjuster and FIGS upper arm camber and caster adjuster when they come out. Have a great CHRISTMAS and Happy New Year to ALL !!!!!!!!!!!!!!!!!!!!!!!!