L3200 hst tyre wear and front/rear axle ratio.

[Kiwibota]

I have noticed a bit of tread scuffing on the front tyres of my L3200 and thought I would check the toe in which was fine. I'm now trying to check the lead/lag percentage in 4wd. I know the rolling circumference of front and rear tyres (trac loader R4s 80 inches and 116 inches) but I don't know the front/rear gear ratio. Kubota don't seem to publish it. Does anyone know?

 

[85Hokie]

Fronts typically lead the rears as you probably know so a machine will pull when turned.

your current ratio is 1.45 - that is assuming zero lead or lag.

Are you using the machine in 4wd on a "hard" surface a lot? or soft ground?

 

[North Idaho Wolfman]

Your previous posts are blank besides the replied text, so I've deleted them.

 

[Kiwibota]

I use 4wd a lot, but never on hard surfaces always on pasture or mud and I avoid sharp turns if I can. I have seen a gear ratio of 1.553 mentioned which gives a lead of 7.1% which seems high, but I have seen other numbers too so I have no confidence in the ratio.

 

[85Hokie]

With Wolfman's help you see:

Which is very close to what you have seen.

YOUR ratio is is smaller - meaning your fronts are too big (you should have a front RC of 75" ish)- thus they are wearing as they are spinning on the surface faster than they should be.