Actual final drive Gear Ratio for 4wd B2150?

[sscooter]

In trying to search down the noise on my B2150, I've been looking for the final ratio of the B2150, but can't seem to find anything definitive.

There are a couple of posts that claim the B8200 shares this ratio (due to same factory tire size I presume?)

I'm going to get the rolling circumference of my wheels later today and see if it all ads up.

The previous owner fitted new front tires not long ago, and while they are the "correct" 24" MFWD Bridgestones, they only measure 23.25" high, wondering if a manufacturing difference (compared to orginal) could be causeing the "noise" and subsequential "popping out" of 4wd.

Anybody have the B2150 final ratio handy?

 

[North Idaho Wolfman]

What exact size and brand are on both the front and rear now?

 

[sscooter]

Front Tires are Bridgestone AG MOWER M40B 24x8.5-12

(these were replaced a few years ago along with new front rims at Kubota dealership) in like new condition.


Rear Tires are believed to be the original Firestone 13.6-16 Turf Tires.

Still have excellent tread.

 

[North Idaho Wolfman]

I don't think tire size is your issue.
and wear variance or slight size difference will not cause your issue.
I think your going to need to get into it and find the mechanical cause of the problem.

RC = Rolling Circumference

Stock:
6.00 - 12 = 70 RC
12.4 - 16 = 115 RC

Your set up now:
24 x 8.5 - 12 = 70 RC
13.6 - 16 = 115 RC