Need help w/ belt size. Chart doesnt help.

[PARALYZER]

I have a KB and no aux pulley. Currently using a 44 inch belt. I just ordered a 100mm aux from Doug. What new length is needed. Doug said the Eaton and KB's are different, so the chart may not be as accurate for me.
Thanx

 

[dougwg]

44?

you need to give more info too

Upper size
Lower size

 

[PARALYZER]

oops.
3" upper
stock lower.

 

[LTHL VNM]

ttt
you want size with and without 100mm idler right

 

[PARALYZER]

I got the stock size to fit last night. I put the belt on first, then the aux idler last. Worked like a charm.