MarkB_MI
Well-known Member
- Location
- Motown USA
Back in December I posted about how I need to replace the leveling box assembly on my row crop four cylinder 4000. It looked like the best solution might be to use the leveling box for a three-banger, since these are roughly the same length as the four-cylinder row crop. I kind of left y'all with a cliffhanger, since the weather turned bad and I didn't want to mess with my tractor when I might actually need to use it. Then we split for Florida in February. Finally it got up to 70 here in the Motor City and I decided it was time to finish the job.
The unit I decided to go with is part number C5NN569AM. These are widely available from YT, eBay and other sources for around a hundred bucks. I bought mine from an eBay supplier, but I assume they all come from the same manufacturer. Here is a comparison of the two units; as you can see the top ends are pretty much identical, but the bottom of the three-cylinder unit is much bigger. Not only is it wider, it uses a 3/4 inch pin instead of the 5/8" of the older unit.
To eliminate slop I inserted a 5/8 x 3/4 inch bronze bushing from Ace. It was an inch long, so I drove it halfway down one hole, then cut it off and used the remainder on the other side. I'm pretty sure this is unnecessary, given the amount of slop in the lift arm balls.
I picked up a check chain kit for the other parts I needed. (Although this one is from YT, I got it from a nearby suppler whose name begins with "Stein" and ends with "er".) The chains are too short, so the only parts I used were one of the pins, the chain eye from the other pin and some of the chain shackles (clevises).
Since the pins for the older tractors are too short for the jaw of the new unit, I substituted a 5/8 x 3-1/2 inch grade 8 bolt. (I'm sure grade 5 would be fine, but Ace had the grade 8s so that's what I used.) I knocked the chain eye off one of the new pins (it's just a press fit) and put that on the 5/8 bolt. The original pins are shoulder bolts where the nut tightens on the shoulder; I secured the new bolt with a double nuts (regular nut with a jamb nut). The new chain shackle was too fat to clear the bolt head, so I reused one of the original shackles. Here's what that looks like installed.
Here's the completed installation. Frankly, that big leveling box assembly looks totally out of place on my tractor, but I think it will work. So I give it 8/10 for functionality, but only a 3 for aesthetics. I may need to do a little more work; I think I'll have to grind down the end of my right-hand sway bar to clear the leveling box jaw. And I may add a couple of washers to center the jaw on the lift arm. Hopefully somebody else will find this information useful.
The unit I decided to go with is part number C5NN569AM. These are widely available from YT, eBay and other sources for around a hundred bucks. I bought mine from an eBay supplier, but I assume they all come from the same manufacturer. Here is a comparison of the two units; as you can see the top ends are pretty much identical, but the bottom of the three-cylinder unit is much bigger. Not only is it wider, it uses a 3/4 inch pin instead of the 5/8" of the older unit.
To eliminate slop I inserted a 5/8 x 3/4 inch bronze bushing from Ace. It was an inch long, so I drove it halfway down one hole, then cut it off and used the remainder on the other side. I'm pretty sure this is unnecessary, given the amount of slop in the lift arm balls.
I picked up a check chain kit for the other parts I needed. (Although this one is from YT, I got it from a nearby suppler whose name begins with "Stein" and ends with "er".) The chains are too short, so the only parts I used were one of the pins, the chain eye from the other pin and some of the chain shackles (clevises).
Since the pins for the older tractors are too short for the jaw of the new unit, I substituted a 5/8 x 3-1/2 inch grade 8 bolt. (I'm sure grade 5 would be fine, but Ace had the grade 8s so that's what I used.) I knocked the chain eye off one of the new pins (it's just a press fit) and put that on the 5/8 bolt. The original pins are shoulder bolts where the nut tightens on the shoulder; I secured the new bolt with a double nuts (regular nut with a jamb nut). The new chain shackle was too fat to clear the bolt head, so I reused one of the original shackles. Here's what that looks like installed.
Here's the completed installation. Frankly, that big leveling box assembly looks totally out of place on my tractor, but I think it will work. So I give it 8/10 for functionality, but only a 3 for aesthetics. I may need to do a little more work; I think I'll have to grind down the end of my right-hand sway bar to clear the leveling box jaw. And I may add a couple of washers to center the jaw on the lift arm. Hopefully somebody else will find this information useful.
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