Alignment guys.. need your help

[Ram1683]

So last night I through my truck back on the rack now that my 2/4 as settled and it was wayyyy out. I took a picture of when I started but not when i finished but here's what a ended up with
Caster L -5.10 R -4.80
Toe. L 0.05. R 0.03
camber L 0.50. R 0.60
That's the absolute best I could get it after 40 minutes. Truck tracks straight but when I hit bumps on the highway like expansion joints I get like a reverb or bounce in the front end. I have rancho single adjustable shocks turned about half way upand front end is tight. I ordered the adjustable upper ball joints to correct the caster but is there anything I should be doing?

 

[Bigskyroadglide]

If you put in something like a bell tech 2/4. You might want these.

Even with these they indicate caster between 5.5 and 7 in their installation directions.

You only really need to worry about camber and toe.

My caster is 6.2 left and 6.0 right. With an IHC 4 inch drop.

 

[Ram1683]

If you put in something like a bell tech 2/4. You might want these.

Even with these they indicate caster between 5.5 and 7 in their installation directions.

You only really need to worry about camber and toe.

My caster is 6.2 left and 6.0 right. With an IHC 4 inch drop.

honestly never seen those before. i may return the joints i ordered and buy those. with that much positive caster how does your truck track?

 

[Bigskyroadglide]

Like it's on rails. Very stable. I spent alot of time with the alignment guy. His comments were you need a little difference between the two caster numbers to account for the crown in the road.

It's really camber and toe that counts for alignment

 

[Bigskyroadglide]

These are the specs I have. They could have been updated. Looks like you got close

CAMBER - LEFT
0.10°
-0.30° to 0.50°

CAMBER - RIGHT
-0.10°
-0.30° to 0.50°

CROSS - CAMBER (Maximum Side-To-Side Difference)
0.20°
-0.20° to 0.60°

CASTER -- LEFT
3.50°
3.00° to 4.00°

CASTER - RIGHT (20 and 22 in. Tire)
3.90°
3.40° to 4.40°

CROSS - CASTER (20 and 22 in. Tire)
-0.40°
-0.80° to 0.00°

CASTER - RIGHT (17 in. Tire)
3.75°
3.25° to 4.25°

CROSS - CASTER (17 in. Tire)
-0.25°
-0.65° to 0.15°

TOE - TOTAL*
0.10°
0.00° to 0.20°

Positive toe (+) is toe-in and negative toe (−) is Toe-out.

* TOTAL TOE is the sum of both the left and right wheel toe settings. TOTAL TOE should be equally split between each wheel on the same axle to ensure the steering wheel is centered after setting toe.


REAR ALIGNMENT
PREFERRED SETTING
ACCEPTABLE RANGE

CAMBER
-0.10°
-0.60° to 0.40°

CROSS - CAMBER (Maximum Side-To-Side Difference)
0.00°
-0.50° to 0.50°

TOE - TOTAL*
0.30°
0.00° to 0.60°

THRUST ANGLE
0.00°
-0.30° to 0.30°

Positive toe (+) is toe-in and negative toe (−) is Toe-out.

* TOTAL TOE is the sum of both the left and right wheel toe settings. TOTAL TOE should be equally split between each wheel on the same axle to ensure the steering wheel is centered after setting toe.

 

[Ram1683]

These are the specs I have. They could have been updated. Looks like you got close

CAMBER - LEFT
0.10°
-0.30° to 0.50°

CAMBER - RIGHT
-0.10°
-0.30° to 0.50°

CROSS - CAMBER (Maximum Side-To-Side Difference)
0.20°
-0.20° to 0.60°

CASTER -- LEFT
3.50°
3.00° to 4.00°

CASTER - RIGHT (20 and 22 in. Tire)
3.90°
3.40° to 4.40°

CROSS - CASTER (20 and 22 in. Tire)
-0.40°
-0.80° to 0.00°

CASTER - RIGHT (17 in. Tire)
3.75°
3.25° to 4.25°

CROSS - CASTER (17 in. Tire)
-0.25°
-0.65° to 0.15°

TOE - TOTAL*
0.10°
0.00° to 0.20°

Positive toe (+) is toe-in and negative toe (−) is Toe-out.

* TOTAL TOE is the sum of both the left and right wheel toe settings. TOTAL TOE should be equally split between each wheel on the same axle to ensure the steering wheel is centered after setting toe.


REAR ALIGNMENT
PREFERRED SETTING
ACCEPTABLE RANGE

CAMBER
-0.10°
-0.60° to 0.40°

CROSS - CAMBER (Maximum Side-To-Side Difference)
0.00°
-0.50° to 0.50°

TOE - TOTAL*
0.30°
0.00° to 0.60°

THRUST ANGLE
0.00°
-0.30° to 0.30°

Positive toe (+) is toe-in and negative toe (−) is Toe-out.

* TOTAL TOE is the sum of both the left and right wheel toe settings. TOTAL TOE should be equally split between each wheel on the same axle to ensure the steering wheel is centered after setting toe.

Wow great write-up thanks! Once I change the uppers I'll use this as my guide. Hopefully I can limit that bounce I get

 

[REDinAZ]

both great looking SB street trucks.

 

[JeffK]

If you put in something like a bell tech 2/4. You might want these.

Even with these they indicate caster between 5.5 and 7 in their installation directions.

You only really need to worry about camber and toe.

My caster is 6.2 left and 6.0 right. With an IHC 4 inch drop.

I was looking at these however both MaxTrac and Summit say they are incompatible with my 2012 Ram Express 1500 2wd. I'm pretty sure Ram used the same arms for quite a few years so not sure why they say incompatible.

 

[Bigskyroadglide]

I have a set in my garage that I ran for about two weeks due to a self inflicted ball joint issue with my ihc uppers. Bolted up like factory. My truck is a 2014. No issues.

 

[Dilligaf-23]

These are the specs I have. They could have been updated. Looks like you got close

CAMBER - LEFT
0.10°
-0.30° to 0.50°

CAMBER - RIGHT
-0.10°
-0.30° to 0.50°

CROSS - CAMBER (Maximum Side-To-Side Difference)
0.20°
-0.20° to 0.60°

CASTER -- LEFT
3.50°
3.00° to 4.00°

CASTER - RIGHT (20 and 22 in. Tire)
3.90°
3.40° to 4.40°

CROSS - CASTER (20 and 22 in. Tire)
-0.40°
-0.80° to 0.00°

CASTER - RIGHT (17 in. Tire)
3.75°
3.25° to 4.25°

CROSS - CASTER (17 in. Tire)
-0.25°
-0.65° to 0.15°

TOE - TOTAL*
0.10°
0.00° to 0.20°

Positive toe (+) is toe-in and negative toe (−) is Toe-out.

* TOTAL TOE is the sum of both the left and right wheel toe settings. TOTAL TOE should be equally split between each wheel on the same axle to ensure the steering wheel is centered after setting toe.


REAR ALIGNMENT
PREFERRED SETTING
ACCEPTABLE RANGE

CAMBER
-0.10°
-0.60° to 0.40°

CROSS - CAMBER (Maximum Side-To-Side Difference)
0.00°
-0.50° to 0.50°

TOE - TOTAL*
0.30°
0.00° to 0.60°

THRUST ANGLE
0.00°
-0.30° to 0.30°

Positive toe (+) is toe-in and negative toe (−) is Toe-out.

* TOTAL TOE is the sum of both the left and right wheel toe settings. TOTAL TOE should be equally split between each wheel on the same axle to ensure the steering wheel is centered after setting toe.

Are these numbers with new control arm? Do you have specs on keeping stock control arms? Did you have to cut your TOE rods?

 

[Bigskyroadglide]

I don't have spevs with stock arms. I did cut my tie rods, 3/8 inch on inner and outer.