Suspension question regarding 2010 Highlander Base model

[mslerner]

Does anyone know if there is a difference between the suspension on a Highlander Sport and the Highlander Base??? There IS a difference in Part#'s but the Toyota parts guy didn't know if the sway bars were thicker or if the shocks/springs were stiffer. I never drove the Sport model, but my 2010 Highlander Base model understeers too much and I would like to correct it (maybe install the Highlander Sport rear sway bar if its a thicker diameter, etc.)

Here are the part#'s for the Base model and the Sport model:

2010 Toyota Highlander – Suspension – Springs, Struts, Sway Bar Part#’s

BASE
>>
>> 48510-80480 ABSORBER
>>
>> 48520-80220 ABSORBER
>>
>> 48131-48610 SPRING, C
>>
>> 48131-48610 SPRING, C
>>
>> 48811-0E030 BAR, STAB
>>
>> 48530-80428 ABSORBER
>>
>> 48540-80004 ABSORBER
>>
>> 48231-48480 SPRING, C
>>
>> 48231-48480 SPRING, C
>>
>> 48812-48170 BAR, STAB
>>
>>
>> SE
>>
>> 48510-A9840 ABSORBER
>>
>> 48520-A9530 ABSORBER
>>
>> 48131-0E090 SPRING, C
>>
>> 48131-0E090 SPRING, C
>>
>> 48811-0E030 BAR, STAB
>>
>> 48530-A9720 ABSORBER
>>
>> 48540-A9370 ABSORBER
>>
>> 48231-0E070 SPRING, C
>>
>> 48231-0E070 SPRING, C
>>
>> 48812-48170 BAR, STAB

[MAToyotaSales]

It gets a little confusing here...

The SPORT model, yes it's a SPORT suspension.

An SE Highlander is *not* a SPORT model. The sport was discontinued halfway through 2010, replaced by the SE which does not have a sport suspension.

[shellback]

What are the differences in the sport suspension? Are springs and shocks stiffer? If so how significant is the difference?

[MAToyotaSales]

It's a slightly stiffer ride, not by much but you can feel it. Similar to driving a Camry SE vs. an LE.

[mslerner]

I would assume the "slightly stiffer ride" of the Sport vs. Base is a result of the lower profile tires. I just picked up the part#'s for the Sport model. If anyone out there has a Sport model, would you mind measuring the rear sway bar with vernier calipers, etc. and get back to me???? Thanks, Mike
P.S. Here are the Sport suspension part#'s
FRONT
48510-A9850 ABSORBER
48520-A9540 ABSORBER
REAR
48530-A9730 ABSORBER
48540-A9380 ABSORBER
FRONT
48131-0E100 SPRING, C
48131-0E100 SPRING, C
REAR
48231-0E080 SPRING, C
48231-0E080 SPRING, C
FRONT
48811-0E030 BAR, STAB
REAR
48812-48170 BAR, STAB