8-speed V.S 6-Speed

[wheel horse man 56]

(1) I would like to know what is the diffrence between a 8speed and a 6speed

(2) Next what tractors have a 8 pinion 8speed in them. (i do know that 8pinion has a 1 1/8 axel)

(3) does my B-80 8speed 1977 have and 8pinion in it

any help would be great :wh:

[rmaynard 16,589]

Your B-80, if it has the stock transmission, has the 8 pinion differential.

I guess any 8 speed could be considered a 6 speed if you don't count reverse.

Wheel Horse called their 5060 a 6 speed even though it had 3 forward and reverse plus Hi/Lo.

8 pinion differentials were found in 5091, 103907, 103916 & 103918 transmissions.

Bob

[wheel horse man 56]

my B-80 8-speed has a UniDrive 2988185 Pat#

Is that a 8pinion and is a 8pinion that most srongest wheel horse trans out there

[rmaynard 16,589]

That's just the patent number. The model number should be 103907 for a 1977 B-80. That is an 8-pinion tranny.

All Wheel Horse trannys are strong, but the 8-pinion seems to be the one coveted by pullers.

Bob

[TT-(Moderator) 1,162]

(1) I would like to know what is the diffrence between a 8speed and a 6speed

The Wheel Horse marketing team.

In order to make people think they were getting as much or more than what the competitors were offering, the marketing team counted hi & lo reverse as "speeds" beginning about 1973.

I've "been inside" quite a few Uni-Drives and have seen everything from a broken input shaft to stripped or chipped gears, blown spider, ring, and axle gears, broken axles, etc. They are strong, but not indestructible - and yes, the 8 pinion differential is the strongest production differential offered by Wheel Horse.

[wheel horse man 56]

:) for the :)