Wheel Centering

[fleetsidelarry]

Originally Posted by lakeroadster

Everyone with a lowered truck has experienced this unless they have modified the stock swing arm configuration. It's just the nature of the beast due to the swing arm design.

On a swing arm truck the more you lower the truck the farther back the tire will be. Think about it. The rear end swings on a radius based on the length of the swing arms.

Originally Posted by SCOTI

Actually, the wheel/tire combo moves forward within the wheel well on extreme drops. Thats why some guys reposition the rear axle C/L to keep the wheel/tire centered.

Actually, IMO, I think both of you are right, just depends on the amount of drop. If, with stock, the trailing arms are angled down, as you lower the truck, the arc will tend to move the CL back, once the trailing arms are past parallel to the ground (SCOTI did say "extreme" drops) the arc would tend to move the wheels forward.

[62 Bowtie]

Tapeworm wrote Also, not sure if its possible, but if there is enough pressure on the rearend from the panhard bar, could it maybe be "twisting" the rear end


This is kinda what I was thinking too. What I have noticed is my panhard bar is horizontal with no angle like it used to be. (a side note) I just installed the blocks and this became more noticeable. Heres another pic

[SCOTI]

The Panhard bar should be parallel to the ground @ ride height for best performance (least amount of side to side movement throughout suspension travel).

To make 100% sure, is the concern the wheels aren't centered fore/aft or L/R?

[fleetsidelarry]

Originally Posted by SCOTI

The Panhard bar should be parallel to the ground @ ride height for best performance (least amount of side to side movement throughout suspension travel).

To make 100% sure, is the concern the wheels aren't centered fore/aft or L/R?

also, for clarification, if it's fore/aft, is it just one wheel or are they both off-center?

[62 Bowtie]

Well after reading the replys its aft more so on the passenger side

[Slow Build]

So it doesn't go down the road straight.

[SCOTI]

Also, what is the gap dimension between the front bed wall & the back of the cab?

[lakeroadster]

Originally Posted by fleetsidelarry

Actually, IMO, I think both of you are right, just depends on the amount of drop. If, with stock, the trailing arms are angled down, as you lower the truck, the arc will tend to move the CL back, once the trailing arms are past parallel to the ground (SCOTI did say "extreme" drops) the arc would tend to move the wheels forward.

I agree with Fleetside Larry. However, since the trailing arms mount to the crossmember, which is at frame level, the only way the wheel moves forward, on a truck dropped lower than stock, is if the trailing arms swings above the frame. That is indeed extreme, much more extreme than the drop shown in the photo by 62 Bowtie.