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also please note that my application will not allow for a clutch. I was just assuming that these lawn mower trannys did not use one... is that correct? I would assume also that an ATV tranny Does use a clutch... in which case I couldn't use that.

so, do you think these things should be able to shift if there isn't any force applied to the driveline?? My diffs may actually freewheel, allowing the driveline to pretty much not spin when coasting.

http://images.google.com/imgres?imgurl=http://www.petessmallengine.com/images/6686208-HO.jpg&imgrefurl=http://www.petessmallengine.com/html/page_170.html&usg=__oqYcnSWIW0wjkUzoML-jzcwwZos=&h=300&w=350&sz=8&hl=en&start=1&tbnid=y5Ql_kfd89tbbM:&tbnh=103&tbnw=120&prev=/images%3Fq%3Dlawn%2Bmower%2Btra...

http://www.petessmallengine.com/images/6686208-HO.jpg this one looks like the belt driven Pully is the Input and the two shafts are the output. now that i look at it again, you are probably right that there is a diff in there... which will need to be welded in my case. The best thing about this...

so what are my options for trannys? So far I have only seen 2 types for tractors: 1. the transaxle. 2. the in-line looking type. is there anything I'm missing? I'll have to find a picture of the one I was looking at... it didnt look like it was a big enough housing to fit a diff.

thanks for the responces. I'll be building an off-road pedal powered kart. I may add an electric assist depending on how hard it's gonna be to get the thing moving. I dont expect it to go very fast. I'm thinking a top speed of 18-20 mph (cranking your *** off) and a cruising speed of 12-15 mph.

so I have a few questions: 1. whats RAGB? 2. is there no such thing as a shift on the fly lawn-mower tranny? (if not thats a bummer) 3. Do the trannys typically have a live axle or diff in the gearbox?? if they have a diff then I think I need to start looking for other options. Thanks for the...

sorry I didn't see there was a second page until just now! Duh! Anyhow... My motors show: http://www.unitemotor.com but it looks like that chinese website is no longer working. I didn't order from those guys though, I ordered from some australlian company who must have gotten their motors...

thank you FBW4 for backing up this guys electric idea. I made an electric skateboard... I used two 300 W motors (one for each rear wheel). The thing is a kick-in-the-pants to ride, accelerates like crazy and hits 18 mph. I could have geared it higher, but 18 mph on a skateboard that weighs 60...

your gonna need to notch that frame to clear the belt. You can weld in some extra support too... because notching it will make it much much weaker. it's too bad you put the jb on the pulley... thats gonna make it really nasty to try and weld now. JB weld REAKS when you apply welding heat to...

i dont think the transaxle was what I had in mind... but maybe (if so it's a small one that I'm picturing). Brigs... do you happen to have a link to the one you are planning on using? I'd love to find one w/ a huge gap in ratio: example: 1:1 5:1 10:1... but i understand that is unlikely. I'd...

I've read an article that suggested it was a bad idea, but i was just wondering if anyone here has actually built a kart using a lawn-mower tranny? Thanks. -josh

only talked about the 4 wheels pulling from a traction point of view... just trying to say you wont have to compensate traction w/ power any more.

im just not sure if that one can hold up to a 400-500 cc motor. i'd try and find some specs on it, but yeah, for that price it seems to be the right answer. With all 4 wheels pulling you may not need such a large engine anyway I would think a 200ish cc engine would be plenty.

this is also assuming that locking diffs are in your interest. If you are just going w/ opens then I think one of the diffs. from the motorized wheelbarrow would work. those are 140 bucks each or you could get the smaller axled ones (for trikes) for 100 bucks each. The link is a page back...

Ok. http://www.hilliardcorp.com/drivetrain-clutch.html The Auto-Lok sprocket drive is what I think you will want. You can actually find them from a variety of suppliers...it is mostly used for lawn mowers and other yard equiptment. I think it would work great for your aplication. Expect to pay...

awesome. I'll let you know what quote I get back. I'd suggest you take some welding classes if you haven't already. I'd also suggest you buy your welder used and buy the most expensive one you can afford. (dont even think about going to Harbor Freight...they do have very helpful 90 degree...

Ok, so here is what I have found so far: http://pdf.directindustry.com/pdf/the-hilliard-corporation/auto-lok-differential/29728-19456.html Page 1,2,and 3 show the "Auto-Lok" differential which looks like it comes with a sprocket. Page 4 shows a "Front Drive System Differential" which is a...

yeah... automotive gears would be too heavy and total overkill for what I'm doing (and also what you're doing). I actually like the idea of being able to gear down at the ring and pinion (or bevel gears). I'm still looking for a good site to get a ring and pinion (or spiral bevel...

i ask because you could potentially fab a ring gear to fit where the sproket is meant to go on a go-cart diff. that would allow you to go shaft drive if you were still thinking about it.