02 grt set up starting points

[racer21]

I am helping a friend out that just bought a 02 grt lm and we are looking for some setup info on the car such as shocks,springs,bar angles and ride heights, any one out there have a older grt spec sheet they would share,the track is a small 1/4 medium banking with little bite,thanks

[CHUMBA]

RF 325, 3 comp. 5 reb
LF 550, 5 comp. 3 reb
LR 225, 6 comp. 3 reb
RR 225, 3 comp. 5 reb
140 to 160 lr bite
Jbar 9" c/L of heim up from bottom of frame and second notch up on pinon
52% left 55% rear without driver.
frt ride high 3.25"
rr ride hight 3" bottom of rear to underslung bar
these are starting points but should be close.
toe out 1/2"
make sure rearend is located correctly side to side
left upper bar up 23 deg
leftlower up 5 deg
right upper 18 deg
right lower 0 deg
4 bar lenghts lru 17" lrl 15" rru 17 3/8, rrl 15 3/8. changing right lenghts makes noticable changes.

[racer21]

thanks chumba,what would be the correct way to set rearend side to side,thanks again

[CHUMBA]

it depends on what chassis it is, standard, offset, or fry.
measure from the inside of the 2x2 tube on frame that p bar mount bolts to to the c/L of drive shaft
std. 15 5/8
offset 14 5/8
fry 16 5/8
these measurements are with car at ride hights
I measure mine from 2x2 to edge of dr shaft, shaft is 3" so I -1 1/2" and use that.
14" 15" or 16". then just measure from right side of rearend over to underslung bar.
rearend to underslung, easier to do when your in hurry.
PM me if you have more questions. There are other things that will help also.

[billetbirdcage]

Hate saying this but Chumba gave you the wrong dimensions for that year of car, I'm sure it was an oversight but the ride heights are not correct for that year of GRT.

Go here: http://www.teamgrt.com/2010_LATE_MOD...ETUP_SHEET.pdf

Scoll down to the 2007 and older cars

[CHUMBA]

yep he is correct the fronts are 3" . iam not sure when they changed the underslung bars? older cars were 3" newer are 4 1/4 . Do you know what year they changed? Kent.

Sorry!!! must be why my driver is looking for new crew chief

[billetbirdcage]

99 was the first year for the 4.25 rear ride heights, some early 99's may still have the 3" rear. The easy way to tell is the 3" is a 1.5 tubing undersling and they run uphill as they go back. The 4.25" is 1.25 tube and run level with the main frame rails.

[racer21]

Chumba you have a p.m.