Model 79361 44" snowthrower, Impeller

i do no think toro/wh had a kit for the gearbox support.  some guys make their own.

the bervacs do have a gearbox support from the factory

I just rebuilt mine and used the same plain bearings on the ends.  If you oil them after they are dry they will run for a long time.  You would do well to replace all of the bushings and seals in the gear case with parts from McMaster-Carr.  The end bearings I found on eBay for a good price.  If you go to the bearing manufacturers website you will see that they were offered in a version that had a grease fitting and that is something I should have added.

7 hours ago, lynnmor said:

I just rebuilt mine and used the same plain bearings on the ends.  If you oil them after they are dry they will run for a long time.  You would do well to replace all of the bushings and seals in the gear case with parts from McMaster-Carr.  The end bearings I found on eBay for a good price.  If you go to the bearing manufacturers website you will see that they were offered in a version that had a grease fitting and that is something I should have added.

Good Morning Lynnmor. Thank you so much for your insight and suggestions. I will replace the auger "bearings/bushings" with OEM type as they are easy to find. The components for the gear box concerns me. Would the OEM part numbers cross over to McMasters or might you have retained the part numbers for the parts required making ordering much simpler? Now, back to the impeller. Any thoughts on locating one of those or another brand that might work in it's place? I understand New Holland was using a same/similar part but I haven't gotten any traction locating a reference for it through Holland. Any thoughts on this? Thanks. Anvil

5 hours ago, Anvil said:

Good Morning Lynnmor. Thank you so much for your insight and suggestions. I will replace the auger "bearings/bushings" with OEM type as they are easy to find. The components for the gear box concerns me. Would the OEM part numbers cross over to McMasters or might you have retained the part numbers for the parts required making ordering much simpler? Now, back to the impeller. Any thoughts on locating one of those or another brand that might work in it's place? I understand New Holland was using a same/similar part but I haven't gotten any traction locating a reference for it through Holland. Any thoughts on this? Thanks. Anvil

 

Simply measure the shafts and bores to get the sizes for the bushings.  They are all standard sizes and no I didn’t record the part numbers.  The worst case is the quad seal, the one from MMC is rather large making it difficult to stuff into the space provided and you may have to order way more than you need, I likely have extra and can send you one, PM me if you want.  I might be able to bring up past orders from MMC and get you numbers that way, after I get to my laptop.

OK, here is my MMC order:

0.126" Thick Washer For 1-7/16" Od Needle-Roller Thrust Bearing   5909K61

Jun 1, 2025

0601JMORGAN

Each

Needle-Roller Thrust Bearing For 7/8" Shaft Diameter, 1-7/16" Od   5909K34	Jun 1, 2025	0601JMORGAN	Each
Grease Seal, 1" Rotary Shaft And 1.25" Bore Diameter   5154T58	Jun 1, 2025	0601JMORGAN	Each
Oil-Embedded Bronze Sleeve Bearing For 3/4" Shaft Diameter And 7/8" Housing Id, 3/4" Long   6391K258	Jun 1, 2025	0601JMORGAN	Each
Oil-Embedded Bronze Sleeve Bearing For 7/8" Shaft Diameter, For 1-1/8" Housing Id, 1-1/8" Long   6391K951	Jun 1, 2025	0601JMORGAN	Each
Oil-Embedded Bronze Sleeve Bearing For 1" Shaft Diameter And 1-1/4" Housing Id, 1" Long   6391K283	Jun 1, 2025	0601JMORGAN	Each
Chemical-Resistant Viton Fluoroelastomer O-Ring, X-Profile, 1/8 Fractional Width, Dash Number 212   6540K152	Jun 1, 2025

I used two of the grease seals on each side of the gear box due to the shaft being rough.  These seals are thinner than the original and should be cemented in place.  Use the original if your shaft is good.  Again, I will mail you a quad seal if you PM me, that way you won't need to buy a package.

I have no clue about the impeller, call around in an effort to find one.

I added rubber material (from mud flame)to the ends of the impeller blades to make a tighter blowing seal in the housing. You have to remove the discharge chute and do the work from the top opening of the blower hole. I used spring clamps to hold the rubber on the impeller then rotated the impeller 360 degrees to make sure it cleared the housing as it rotated. Also I mounted the rubber to the back side so it would flex away if a rock got in there. Check out my you tube videos on 520 snowblowing.