Slide out wear bar height

[HandymanK]

I have a 2017 Cougar 359 MBI and the dinning area slide out is dragging while extending or retracting. The wear bar under this slide seems to have had a good life and is in need of help. Would like to install some Bal rollers but need to know the height of the tired wear bar. Is it 1/2" or 3/4" inch? Also how many to install, the slide is 12'. Thanks in advance.

 

[chuckster57]

If you go to the BAL site it will show you how to measure the height and the recommended spacing.

 

[HandymanK]

Appreciate the go to helper.