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Discussion Starter #1
The Z height, measured from the center pivot of the lower A-arm to the steering knuckle lower corner, is next to impossible to measure. I am guessing it's a magic number for the benefit of engineers, because the measurement takes the center line of the pivot bolt (impossible) extended out over the steering knuckle lower corner (impossible) and measures the distance between the two.

A 94 manual that I have calls for a Z height of 157mm +- 6mm on K2500 series trucks. I assume this specification has not changed for my 99, but if anyone knows for sure, please let me know.

Anyways, is there a better way to determine if the front torsion bars are adjusted properly? The reason I am going through this is one of my torsion adjustment bolts is about half as high as the other one. So, I wanted to check to see 1) that the bars were set to the proper height and 2) that the bars were adjusted evenly from left to right. Now is the time where I wish I has some corner scales.

Any thoughts on this would be greatly appreciated.
 

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For K2500:


Z trim height with L65
Service allowed 139 to 151mm or 5.5 to 5.9in
Service preferred 145mm or 5.7in

Z trim height without L65
Service allowed 151 to 163mm or 5.9 to 6.4in
Service preferred 157mm or 6.2in

Hope this helps

Jay
 
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