My main trail/race mower. Started out as a 10hp Tecumseh, 600 peerless transaxle. Upgraded to a 18 opposed twin briggs, then started blowing transmissions. Now it has a 20hp v-twin, and modified 820 peerless transaxle.
Fresh paint!
Stretch44875 Administrator
500+ Posts
500+ Posts
Age : 49 Join date : 2012-04-05 Points : 5657 Posts : 959 Location : Mansfield, Ohio
My main modfication was the transmission. Started out as a 6 speed peerless 820-16d. Orginial spider gears and axles removed. Hubs for spider gears bored to 1 in and keyed. Needle bearings removed from the axle housings and replaced with bronze bushings. Orings removed from other bearings. High speed gear set installed. Brake shaft cut off and bearing replaced with capped bearing to prevent oil leaks. Go kart axle installed. 10 in brake rotor and brake caliper installed. Vent and fill plugs, filled with 90wt gear oil.
another axle built, in empty housing.
Welded axle keyway and filed smooth for orings to prevent oil leakage.
Spare tranny
disk and caliper on tractor.
maddog1949 likes this post
Stretch44875 Administrator
500+ Posts
500+ Posts
Age : 49 Join date : 2012-04-05 Points : 5657 Posts : 959 Location : Mansfield, Ohio
Front axle is completely custom. 3/16 wall 2x3 channel, with welded ends. 10 degrees postive caster for handling, no toe or camber. Grade 8 3/4 bolts welded for spindles/pivots. Center pivot is 1 in bushing with bronze bushing, bolted to tractor with 3/4 grade 8 bolt. Also installed a rack and pinion steering.
Old axle donating its center to new axle.
basic idea of how spindles are made
installed on mower
tie rod connection
Rack and pinion
Stretch44875 Administrator
500+ Posts
500+ Posts
Age : 49 Join date : 2012-04-05 Points : 5657 Posts : 959 Location : Mansfield, Ohio
Some pics of the undercarriage. We use rods all the way across, above and below the belt, to keep it in place. Also x brace installed, and 1/2 welded to bottom of frame rails.
DICE464 Member
Age : 28 Join date : 2010-07-30 Points : 5317 Posts : 129
No idea what the rack and pinion is off of. I bought it at a surplus place for 30.00. They sold out of them shortly after.
Exhaust is 3/4 electrical conduit. Duals ran out the back. It's a little small, but engine is stock. Sounds really good, quiet at idle, loud as heck when you get on it.
It's geared for 45mph, and gets there in a big hurry. Lot of fun to run it through the gears. With the 6 speed, 1st is still really slow, like a granny gear. You could actually mow in that gear. Pulleys are 6 in front and rear. I'll have to get a pic of the high speed gears.
my avatar pic is of my own old LT10 that ended up getting an 18hp opposed twin... built up almost the same way (but I kept my 3 speed peerless with some modifications)
Then someone stole it, and put it inside a storage yard where it rots away. Can't find the owner of the lot to get it back ( I have ways to positively ID the thing) or else I'd bring it back to life in a big way.
TheRainbowBoxer Moderator
1000+ Posts
1000+ Posts!
Age : 49 Join date : 2012-04-23 Points : 5657 Posts : 1091 Location : Galion, OH
Toggle switch... I have thought about doing brake lights on mine, but haven't gotten around to it.
yea ive been thinking about it to and using a push start button on my brake pedal to turn the lights on but i figure i wont be going on any major road lol and if one of my buddys hit my rear there just gonna lift me off the ground
Doc Sprocket Site VIP
2500+ Posts
2500+ Posts!
2018 Build-Off Entrant
2018 Build-Off Entrant
2021 Winner of Winners
2021 Winner of Winners
1st Place Build-Off 2016
1st Place Build-Off Winner 2016
Age : 51 Join date : 2013-04-21 Points : 7274 Posts : 2914 Location : Ontario Canada
Just looking at these- those U joints, i can only see two. Is there a third one? it looks like it would be really sharp turn for the second one, but then again i might be wrong.
Stretch44875 Administrator
500+ Posts
500+ Posts
Age : 49 Join date : 2012-04-05 Points : 5657 Posts : 959 Location : Mansfield, Ohio
Only 2 ujoints, one at each end of the middle shaft. Somewhat of a sharp angle, but it's a low speed steering setup, not a driveline.
Gotcha. Maybe its the camera angle of the second pic that makes it look more then it is. I was kinda thinking about using a golf kart steering box for mine, but thats only if the gears broke or something. Trying to help out greener179 too with his broken steering. Thanks
TractorHoard New Member
Age : 27 Join date : 2013-11-25 Points : 3992 Posts : 14
I will defiantly model my next racing mower off this, my little simplicity i have now i wanted to be alot like this, but it just didn't work out and instead of having a locked transaxle like i wanted (so i could have gears) i had o have a 90 degree gear box and i wish i had revers because its pretty much pointless for doing anything other than going fast at this point
LAWN MOWER MUDDER Established Member
500+ Posts
500+ Posts
2014 Build-Off Top 3 Winner
2014 Build-Off Top 3 Winner
Age : 23 Join date : 2013-04-08 Points : 5165 Posts : 913 Location : Central Pa
Hey Stretch I know that you take pride in your exhaust but can you share a picture of it with us? I really like your exhaust sound. I ask because have another V-Twin that I am thinking about rebuilding for my Rally. I was wondering about mimicking your sound.
Stretch44875 Administrator
500+ Posts
500+ Posts
Age : 49 Join date : 2012-04-05 Points : 5657 Posts : 959 Location : Mansfield, Ohio