Old sierra Trail Boss Parts?

[KPCDBTTD]

Found an old Trail Boss cleaning out a garage. Body is in great shape but one transmissoin has a cracked housing with a gear sticking out. Would like to restore it. Anyone know if parts are available for vessley sp. transmission?

[Tom Newell]

Found an old Trail Boss cleaning out a garage. Body is in great shape but one transmissoin has a cracked housing with a gear sticking out. Would like to restore it. Anyone know if parts are available for vessley sp. transmission?

Hi,

I notice you have not gotten any response, so I will give it a shot, even though I, too, have recently come to own a Trail Boss and am just beginning to learn about it.

Generally speaking, parts availability is very thin. Especially for the transmission, which apparently are entirely unique to the Trail Boss. However, this vendor mentions some availability here:

http://richardsrelics.com/details_parts/sierra_trans.html

and here:

http://richardsrelics.com/details_parts/sierrabands.html

(read somewhere that one version of the transmission has unfixable/unrelinable bands; this doesn't really make sense to me; if one human made something, another human can make a duplicate.

and here:

http://richardsrelics.com/details_parts/sierratranskit.html

(Let's be honest, these are just standard seals packaged up at a rather high price. But if someone didn't want to go to the trouble of figuring out all the sizes, or wait for me to figure them out and post the information.)

The engine is just a two-cycle Kohler Snowmobile engine which seems to be pretty bulletproof. The carburetor is a Tillotson HR38A, which is apparently common as dirt. This company bought the Kohler two-cycle business in 1981:

Growth Products, Inc.

http://www.growthprod.com

Phone:989-235-4294
124 S. Lake St
Crystal, MI 48818

The drive pulleys are standard snowmobile stuff, and are readily available, including at Richards Relics (referenced above).

The body is made from High Density Polyethylene. This is the same stuff kayaks are made of, and repairs using heat and the proper plastic filler rod are widely documented on youTube, and such (supplies: https://www.polyvance.com/HDPE-1/). It can not be painted (well, it can be painted, the paint just won't stick and will eventually come off).

The remaining engineering for the Trail Boss is pretty much of the "sledgehammer" variety and can be easily dealt with by anyone willing to work at it.

If anyone notices anything I have gotten wrong here, I will be delighted to hear of it, as any corrected information will prevent me from going down the wrong path.

Regards,

Tom Newell

[sidewinder]

That would be great if you do come up with part numbers for the seals.

[sidewinder73]

Hi,

I notice you have not gotten any response, so I will give it a shot, even though I, too, have recently come to own a Trail Boss and am just beginning to learn about it.

Generally speaking, parts availability is very thin. Especially for the transmission, which apparently are entirely unique to the Trail Boss. However, this vendor mentions some availability here:

http://richardsrelics.com/details_parts/sierra_trans.html

and here:

http://richardsrelics.com/details_parts/sierrabands.html

(read somewhere that one version of the transmission has unfixable/unrelinable bands; this doesn't really make sense to me; if one human made something, another human can make a duplicate.

and here:

http://richardsrelics.com/details_parts/sierratranskit.html

(Let's be honest, these are just standard seals packaged up at a rather high price. But if someone didn't want to go to the trouble of figuring out all the sizes, or wait for me to figure them out and post the information.)

The engine is just a two-cycle Kohler Snowmobile engine which seems to be pretty bulletproof. The carburetor is a Tillotson HR38A, which is apparently common as dirt. This company bought the Kohler two-cycle business in 1981:

Growth Products, Inc.

http://www.growthprod.com

Phone:989-235-4294
124 S. Lake St
Crystal, MI 48818

The drive pulleys are standard snowmobile stuff, and are readily available, including at Richards Relics (referenced above).

The body is made from High Density Polyethylene. This is the same stuff kayaks are made of, and repairs using heat and the proper plastic filler rod are widely documented on youTube, and such (supplies: https://www.polyvance.com/HDPE-1/). It can not be painted (well, it can be painted, the paint just won't stick and will eventually come off).

The remaining engineering for the Trail Boss is pretty much of the "sledgehammer" variety and can be easily dealt with by anyone willing to work at it.

If anyone notices anything I have gotten wrong here, I will be delighted to hear of it, as any corrected information will prevent me from going down the wrong path.

Regards,

Tom Newell

Did you or anyone else find out the the part numbers on the seals.Thanks..