thunder550

iTrader: (70)

Service rep at the dealer (I seem to be one of the only people here that has a good relationship with them) told me they would align my truck to whatever specs I give them, but could not find the SS specs since it's a GMC dealer (the Chevy dealer down the street SUCKS ***). Can someone post em up for me?

thunder550

iTrader: (70)

ttt...

SnakeOiler

iTrader: (6)

Then what would they do if someone brought in an SS to be aligned? What does any alignment shop do when a vehicle is brought in? The GMC dealerhsip either already knows information or they can find out (at a minimum, they can call a Chevy dealership).

MrStaggrLee

2004-03 Silverado SS:

Left side: Caster degrees- min. 3.25, pref. 4.10, max. 5.10
Camber degrees- min. -0.40, pref. 0.10, max. 0.60
Toe-In(inches)- min. -0.05, pref. 0.05, max. 0.15

Right side: Caster degrees- min. 4.10, pref. 5.10, max. 6.10
Camber degrees- same as left side
Toe-In(inches)- same as left side

thunder550

iTrader: (70)

Thank you!!!!!

Snakeoiler - maybe they were just lazy and didn't feel like looking. I dunno.

fastinspirit02

iTrader: (1)

So would this make the steering more responsive or what?? I've heard about this some but not a whole lot, seems like an inexpensive way to get better handling.

thunder550

iTrader: (70)

JohnUlaszek set his truck up for autocross, details here http://gmhightechperformance.com/tech/0504htp_truck/

Here's a quote from his page, which is what made me think about doing this.

"Factory alignments are typically set up conservatively, as understeer is considered a safer condition at the limit of traction. Since Chevrolet sends the Silverado SS out the door with about one degree more caster than the K1500, I chose the SS's caster spec as a starting point. My local alignment shop, Dunivin's Corner in Woodbridge, VA, is staffed by SCCA racers and they recommended -.25 degrees of camber and 0 degrees of toe-in. This picture was shot immediately after the autocross with about 42 psi. The 60 series tires kicked *** and never rolled over onto the sidewall."

zippy

right from the gm service information...


--------------------------------------------------------------------------------

Wheel Alignment Specifications
Truck Line
Model
Caster L-R
Cross Caster, L-R
Camber
Cross Camber, L-R
Toe
Steering Wheel Angle

Important: Caster is relative to frame. The caster values must be compensated for the measured frame angle. Frame angle is positive when higher in the rear and negative when lower in the rear. Refer to Front Caster and Camber Adjustment .


C1500
Silverado, Sierra w/16" Tires

Reg, Ext Cab or Crew Cab
3.75° ± 1.00°
4.00° ± 1.00°
- 0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

C/K 1500
Silverado, Sierra w/17" Tires

Reg, Ext Cab or Crew Cab
3.85° ± 1.00°
4.00° ± 1.00°
- 0.15° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

C1500HD
Silverado, Sierra w/16" Tires

Crew Cab
4.50° ± 1.00°
4.75° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
-1.0° ± 3.5°

K1500
Silverado, Sierra w/16" Tires

Reg, Ext Cab or Crew Cab
3.80° ± 1.00°
4.10° ± 1.00°
- 0.30° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

K1500
Silverado, Sierra w/17" Tires

Reg, Ext Cab or Crew Cab
3.60° ± 1.00°
4.30° ± 1.00°
-0.70° ± 0.50°
+0.25° ± 0.50°
0.00°± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

K1500
Sierra Denali w/20" Tires
3.50° ± 1.00°
4.50° ± 1.00°
-1.00° ± 0.50°
- 0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

C1500/K 1500
Silverado/Silverado SS/Sierra, w/20" Tires
4.10° ± 1.00°
5.10° ± 1.00°
-1.00° ± 0.50°
-0.10° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

K1500HD
Silverado, Sierra

Crew Cab
4.25° ± 1.00°
4.50° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

C2500LD
Silverado, Sierra

Reg or Ext Cab
4.50° ± 1.00°
4.75° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
- 1.0° ± 3.5°

K2500LD
Silverado, Sierra

Reg, Ext Cab or Crew Cab
4.25° ± 1.00°
4.50° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
-1.0° ± 3.5°

C2500HD
Silverado, Sierra

Reg, Ext Cab or Crew Cab
4.25° ± 1.00°
4.50° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
-1.0° ± 3.5°

K2500HD
Silverado, Sierra

Reg, Ext Cab or Crew Cab
4.25° ± 1.00°
4.50° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
-1.0° ± 3.5°

C3500/3600
Silverado, Sierra

Reg, Ext Cab or Crew Cab
4.25° ± 1.00°
4.50° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
-1.0° ± 3.5°

K3500/3600
Silverado, Sierra w/Dually

Reg, Ext Cab or Crew Cab
4.25° ± 1.00°
4.50° ± 1.00°
-0.25° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
-1.0° ± 3.5°

K3500/3600
Silverado, Sierra Non-Dually

Reg, Ext Cab
4.50° ± 1.00°
5.00° ± 1.00°
-0.50° ± 0.50°
+0.25° ± 0.50°
0.00° ± 0.50°
+0.10° ± 0.20°
-1.0° ± 3.5°

C/K 1500
Silverado, Sierra with Rear Wheel Steering -- Values are for the rear of the vehicle.
--
--
--
-0.50° ± 0.50°
--
0.00° ± 0.20°
-1.0° ± 3.5°

Thrust Angle

0.00° ± 0.15°



--------------------------------------------------------------------------------