XV Rear Alignment Kit

[DQHemi]

If you've ever had your car on a four wheel alignment rack, you've likely found that the rear wheels are not square in the car.  Ideally the front and rear wheels should be square, creating zero thrust angle, which until now was not easily adjusted in these cars.

To address this issue, we've developed a shim kit that allows you to adjust your thrust angle.  These come in a kit of five, which should work for most any vehicle.  We don't know all the applications this will work with, but if your Mopar came with leaf springs, there's a pretty good chance these will work on it!

These are in stock and ready to ship.
The perfect stocking stuffer for all the Mopar fanatics on your holiday list...

Here is a link to this product on our site:  XV Shims

 

[Challenger6pak]

How much of a difference will the shim make?  Will it be felt from the drivers seat?  Does it help tire wear?  Can you explain it?  Thanks.

[A110235]

Excellent!  I always wondered if any one made something like that.

Kyle

[Katfish]

More info needed.  The front hangers are in fixed position, I don't understand how putting a shim in would change anything from a side-to-side standpoint

[cowboy]

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To explain VERY clear..
If your car make foure wheel-tracks in the snow, this is what you need..!

[IMNCARN82]

I'll need some of those.

[Katfish]

-
To explain VERY clear..
If your car make foure wheel-tracks in the snow, this is what you need..!

Problem is clear, how this fixes it, is not.

[IMNCARN82]

It allows you to evenly pack out the front leaf hangers to align better with the front end. In my case,even with a straight car (lazer rack frame alignment),the car gets alittle squirly under hard acceleration.The back end is pushing against the front. I was considering just making some. 

[gkring]

I think you put shims on one side only to straighten out the rear so it is sqaure with the front. It won't fix a side to side problem, but will "resteer" the rearend to point straight. I never thought about it on a leaf spring car, but adjustable control arms on other makes ae pretty common once horsepower starts going up.

[DQHemi]

Take a look at the diagram above which explains thrust angle.

In a solid axle car the way to adjust the thrust angle is to change the angle of the axle in the vehicle.
By shimming under the front leaf spring mount on one side of the car you can change the thrust angle.

[Challenger6pak]

Thanks John.

[EvilTwinATX]

never really thought about this but a cool product...

How do you measure the thrust angle in order to determine the number of shims you need to use behind the leaf spring mount? Do you need an alignment machine?

[HP2]

Put in more commonly talked about terms is thrust=wheelbase differences from right to left sides. You can measure it a variety of ways in your garage. A GOOD alignment shop will do it as a regular course of business. Difference it makes depends on how much thrust you have and how hard you drive. More thrust or harder driving will make a noticeable difference in corrections. Minimal thrust or cruising to parking lot shows probably won't notice much difference at all. I've used just plain old sheet metal stock for this purpose before. These are very nice looking though and will surely simplify the process of adjustments.