Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors


Allis T-811 - Simplicity 6216 Trans Swap

Recommended Posts


I have the T811, but the transmission is worn and will not stay in 2nd gear or reverse. I removed the rear wheels, which are on hubs mounted to keyed 1" driveshafts.

I want to swap in a trans from a 6216 a friend has as a parts machine (he stole the engine and some other parts off it a while back), but I do not know how to remove the trans from this one.

The hub plates are welded onto the ends of the driveshafts coming out of the transmission. The right hand side shaft goes through a hole in the rear housing sheet metal, and the hub will not fit through there. How do you pull the trans on this one? Is there a clip that needs to be removed inside the trans to let that shaft free?

I don't really know how to fix the T811s transmission, but am wondering if I would be better off just fixing it. Any thoughts?



Share this post

Link to post
Share on other sites

I don't remember for sure, but it seems to me that there are plates bolted to the housing at the axle location that unbolt and slip down and off, and then the tranny drops out of the side plates. I know this is the case for the 6011 tractor and am pretty sure it is for yours too. I have an Allis T816 and can take a look at mine later on if you need me too.


Share this post

Link to post
Share on other sites

Well, I did get out and looked at my T816 and I see what you mean. I am not sure off hand how it would come apart, but am assuming the axle shaft would need to come out of the tranny. Sorry I can't be more help, maybe someone else can chime in and offer more info.


Share this post

Link to post
Share on other sites

I ended up buying a parts machine and put the rear end from that one into my tractor.  The hubs are rusted tight to the axles on this one.  I have two 6000 series transmission/differential assemblies now in my garage.  I split one with the intention of repairing it, it jumps out of reverse, but wasn't sure how to fix it once I got it apart, so it has just sat split.  I wonder if I could find information on how to repair it in a service manual?  I have never seen one of those.

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Who's Online (See full list)

    • Obsessive_AC_912H
    • BLT
    • PhanDad
  • Today's Birthdays

    1. B-16_IC
      (46 years old)
    2. Flannelman
    3. Glen112
      (71 years old)
  • Recent Status Updates

    • Bubba1997


      Searching for a Sleeve hitch and breaking plow and other equipment if price is right and also a deck for a B1 thank you 
      · 3 replies
    • Dean McFadden

      Dean McFadden

      Good morning peeps! I’m always searching for helpful information with my AC collection. Hope to find out new information and pass on my own experience in restoration. Here are some pics of my babies. I’m still looking for front rims for the 410 so yesterday I put the 310 wheels on took it for a drive. Working pretty good but still needs some carb work. Gotta get the 310 running next. Have a great day!😁

      · 1 reply
  • Adverts