98-99 grt lm arm lengths and spindal heights

[racer21]

hey guys,im needing to know the upper and lower lengths on the a arms and spindal heights on this car i have, i really dont have a history on it
and want to make sure it has the right parts on it,and any other suggestions,thanks

[hpmaster]

A car that old I would call GRT and find out if what you have is still as delivered or not.

[sj valley dave]

On a 1999 the upper right and left are 10" , mounted on the inside of the uprights, the lower left is 16 5/8" and the lower right is 17 5/8". We changed our upper left to 10 1/2" and our upper right to 7 3/4" upper mounted on the outside of the uprights and a 19 right side lower

[dirtdevil]

Did you have to use the 7 3/4" upper to be able to get camber?

[sj valley dave]

Yep...without having to modify the uprights to get the static negative camber that we wanted, we went to a 7 3/4" upper...It gains negative camber quickly...

[dirtdevil]

Yep...without having to modify the uprights to get the static negative camber that we wanted, we went to a 7 3/4" upper...It gains negative camber quickly...

Thanks for help and info you give. Are there any problems with hitting the c/o spring @ 7 3/4" ? I am switching this car to the RF mounted outside w/ a 19" lower and saw some other info that a 8 1/4" upper was used - but then again read elsewhere that someone was using a 8".

[sj valley dave]

We run a Penske double adjustable mono tube and with a screw in upper ball joint, there is no clearance issues with a 7 3/4" upper...With a twin tube, I'd probably take the spring off and run it through motion...