Pulling tractor transmission (snowmobile engine)

[Zgt500 0]

What transmission should I use on a pulling tractor with a Polaris 1000 engine on it?

[AMC RULES 37,144]

[stevasaurus 22,962]

If you are going to use a wheel horse transmission...the strongest is the 8 speed, 8 pinion with 1 1/8" axles.    I think # 5091.

 

BTW...Welcome to Red Square    You may want to check out our "Puller" section on the main page.

Edited July 4, 2013 by stevasaurus

[baerpath 517]

This one uses a WH 8 pinion trans I forgot what sled engine he has in it, and now it's Artic Cat green

[Zgt500 0]

That's just the stock 8 speed right?

[boovuc 1,090]

Well yes and no. There are two very different 8 speed trannies plus a couple older posi-rears sprinkled here and about. The very best rears are the 8 pinion/inch and an eighth rears. Look for the inch and an eighth axle diameter as opposed to an inch diameter axle.

[Zgt500 0]

Ok, if I can find one, should I rebuild it?

[baerpath 517]

Rebuilding is going to depend on what shape it's in when you get it. Where are you in NY ? Are you going for a modified or a repowered tractor look ?

[stevasaurus 22,962]

For what you are building, I would at least open it up and take a look.  Not hard to do and plenty of help here on the site.  You may want to consider sending a PM to Mike Biser (racinfool40)...he may have the transmission you are looking for, and it may already have been rebuilt/checked out.   He picks them up, fixes them and sells parts.

[smoreau 658]

C81 is one of the tractors that have this trans

[baerpath 517]

 We don't go into them until they break. 

But most of us have 2 or 3 spare trans so we can swap out when needed. I have two under the bench ready to go for backups and some still in tractors just in case. We have snapped a couple axles and hubs too.

 

[jdpuller 2]

will your rules let you run automotive trans and rearend?

Edited July 7, 2013 by jdpuller

[Zgt500 0]

I dunno, I haven't ran it yet

[SousaKerry 502]

Wow bearpath I think you found the stress riser in that input shaft....

If you keep breaking keyways out like that you may want to consider using a trantourque or similar keyless hub. Or at least a taper lock hub.

[js5020 111]

Wow bearpath I think you found the stress riser in that input shaft....

If you keep breaking keyways out like that you may want to consider using a trantourque or similar keyless hub. Or at least a taper lock hub.

Anyone have a pic of these keyless hubs installed?  Seems like an alternative to repair a bad axle without getting into the transaxle, Im thinking it would be much easier to bore the hub if one of these devices would work?

[SousaKerry 502]

Here is the website

http://www.fennerdrives.com/trantorque/

[baerpath 517]

Wow bearpath I think you found the stress riser in that input shaft....

If you keep breaking keyways out like that you may want to consider using a trantourque or similar keyless hub. Or at least a taper lock hub.

That was the axle split the hub also. Still not sure why it did that.