Lock with out a welder or melting zink!

this only works on peerless mst's and other trans axles that have the spider gears within the bull gear. mainly you just need a extra spider gear that is the same type of what is in the axle. here is a video.

MORE PICS!
locker close-up

over all bottom half

top half

Heavy-duty 13 tooth gear (left) vs normal duty 16 tooth gear (right)

This is great for those of use without access to a welder. You'll have to keep us updated on reliability.

Are the teeth of the extra gear fully engaged the same as the normal gears? Looks like there is less teeth "meshing" in the close-up pic.

Yes it works, no it's not a new idea. Somewhere around here (I'll have to look) is a sticky on different transaxle locking methods. It's in there.

If your bull gear has the square bore, it's a drop in. If it's a round bore, you put a nut and bolt on each extra spider gear, and grind to fit.

EDIT- https://www.atltf.com/t3217-how-to-transaxle-locking-methods

B440 wrote:

This is great for those of use without access to a welder. You'll have to keep us updated on reliability.

Are the teeth of the extra gear fully engaged the same as the normal gears? Looks like there is less teeth "meshing" in the close-up pic.

Yes, they don't perfectly mesh, that's why its hard to get it lined up. I beat the crap out of this same setup in my tranny until it crackedbecause of me not putting the tabbed bushings in place.

Doc Sprocket wrote:

Yes it works, no it's not a new idea. Somewhere around here (I'll have to look) is a sticky on different transaxle locking methods. It's in there.

If your bull gear has the square bore, it's a drop in. If it's a round bore, you put a nut and bolt on each extra spider gear, and grind to fit.

NO! Twice now I haven't needed to grind! Its just drop in with the rounded one too!

THAT would depend on the bolts you got.

No bolt ether! They fit fine!

Theyfit fine. Watch the vI'd.

You can put MST spiders in a 930 or vice versa and they mesh correctly. Two different kinds of gears.

redlinemotorsportts wrote:

You can put MST spiders in a 930 or vice versa and they mesh correctly. Two different kinds of gears.

K cool, to bad I don't have a 930! Lol

mudman604 wrote:

No bolt ether! They fit fine!

Bolts are generally used to set the lash. I realize you didn't use them. I would. Just one of those things.

As for the square bore bull gears, I have heard of a few examples of folks having to clearance (grind) the added-in spider gears a wee bit, due to a lack of clearance. Seems to be a "sometimes" thing. No surprise. These things aren't exactly built to precision tolerances.

Iv been running extra spider gears in my 820 for about 8 months works fine for me.

this is still working, iv beat on the tractor some more and i is holding up. easy locker test, find a flat area, turn wheels to the max ether way, if you have 1:1, than about 3rd gear and about half throtle and your 3-wheelen!
WARNING!: DO NOT ATTEMPT IF YOU HAVE A SOLID FRONT AXLE! YOUE WILL JUST FLOP OVER!

this weekend i towed my friends tractor (820, oppy, with his big but and his friend,) up and down several hills at top speed, this locker is still holding strong.

Does anyone know if this would work on a Peerless MST-206 545C? I've seen some say yes it will and some say it won't. I've also seen people say you need an even number of teeth for this to work. Does the 545C have 13 or 16 tooth gears?

I think they have 13 teeth

So, judging by the video this locker will work with my transmission, correct? Do I need one or two extra spiders? Sorry for all the questions, I'm new to this

You're going to need to get SIX gears for a 800/900 series. Odd number of teeth on the MST's. No good.

Starting to feel stupid but it's been a long day and I just want to clarify. This locker will not work with 13 tooth spiders? Isn't that what the video showed as working?

I used 13 tooth, i only put in ONE extra spider gear. One will fit. I know on paper that doesn't work, but there is a small sweet spot there that you can find, and they fit with out wobleing the bull gear.

Where was the post that stated the difference between the MST duties?

mudman604 wrote:

I used 13 tooth, i only put in ONE extra spider gear. One will fit. I know on paper that doesn't work, but there is a small sweet spot there that you can find, and they fit with out wobleing the bull gear.

You might have gotten away with it for now, but it sounds dodgy to me. A lot of stress concentrated over a small area. Honestly, I wouldn't do this.

I have two trannys locked this way with 13 tooth, one is being driven by a twin. Still holding strong. I don't recommend for high speeds becausenofmthe inbalence on the axle though. Not over 20mph I'd say.
Also, it actual has more surface area than welding, so the stress is really, more spread out.

I could break it...