Rear end gears for my 400...

Absent Minded Farmer · Jun 17, 2011

Ok, I don't know as much as I should about the rear-end gears in my 400. So I'm going to fire out an elementary question. If the 560's had problems due to an outdated rear-end, would the updated gears & such fit in the rear of my 400?

Mike

rustyfarmall · Jun 17, 2011

(quoted from post at 08:25:16 06/17/11) Ok, I don't know as much as I should about the rear-end gears in my 400. So I'm going to fire out an elementary question. If the 560's had problems due to an outdated rear-end, would the updated gears & such fit in the rear of my 400?

Mike

Someone correct me if I'm wrong, but I think it was the axle bearings that were upgraded in the 560, not any of the gears?

BillyinStoughton · Jun 17, 2011

Boy...I thought it was the gears and bearings. I'm betting someone weighs in here shortly that has the entire scoop on this subject.

Anonymous-0 · Jun 17, 2011

It was a big wood crate, had latest axle brngs inner & outer, new bull gears, new brake shafts & brngs, shims & gaskets. I hauled them in a IH pickup from Omaha when I first started working at Dealership.

D Slater · Jun 17, 2011

Yes most of the latest update parts that become standard on a lot of 560 can be installed. Need differential and bearings, differential carriers with bearing race and o rings, shims and tapered shim., bull pinion gears and bearings, bull pinion retainers, bull gears, axle bearings, roller bearing for the pinion shaft. If you want the tractor to look original the 560 bull pinion shaft retainers need the od turned down to 400 od size using the 400 brakes. 560 brakes and brake parts can be installed. If 560 is used some 560 parts like t/a operating handle bracket and linkage is needed along with a little grinding for bolting the bracket to axle housing.

Absent Minded Farmer · Jun 17, 2011

(quoted from post at 09:47:01 06/17/11) I'm betting someone weighs in here shortly that has the entire scoop on this subject.

ME TOO! I'm taking dinner at the moment & have a minute. ;v) I may have to dig around & see if any of my collector publications or IH publications mention something, but I doubt it. Surprisingly, I don't have a great big pile of paper knowledge floating around, that pertains to agriculture. It's all train stuff. If someone needs info from a Model Railroader, Rail Model Craftsman, etc., from the last 60 years... your pretty much covered. Most of my tractor knowledge comes firsthand & from the experiance of others (thanks guys!!).

Mike

SouthernFarmall · Jun 17, 2011

I thought that the problems in the 560s revolved around bearings, too. Of course, IH may have just changed the gears out for good measure!

SF

sflem849 · Jun 17, 2011

Didn't the problems come about from increasing the horsepower of the tractors? ie the 400 is a 3 bottom tractor, but the 560 is a 4 bottom tractor with the same rear end
Wouldn't the 400 "probably" not have the problems of a 560 because of this? Crazy doesn't seem like a puller from his posts so he probably won't send too much power through his 400. I would do the swap it if I were pulling. (I would probably be pulling a 560 now as well since they are now allowed in antique class)

SouthernFarmall · Jun 17, 2011

I think 560s were actually rated for 5 bottoms, but pulling that many probably had something to do with the rear end failures. The number of bottoms mainly has to do with your soil type. I think a 400 should pull 4 plows in most soils, and 3 plows in a very tough environment. I have never heard of 400s having rear end trouble, but that is not to say they won't if you run 70+ horsepower through them.

SF

john d · Jun 17, 2011

Could be wrong, but I think bearings were the source of the problem in the early 560. Didn't take long to find problems when they were pulling a 5-14 or 5-16 plow. If the bearings let go, there could also be significant gear damage.
I don't know how much 560 stuff will swap to your 400, but I know the last time we had the rear ends of our M and SM reworked, the IH dealership swapped in some 560 bearings. That was in the early 1960s, and they were worked hard until the late 1980s. Both of those tractors spent many hours pulling 4-14 plows. Not working hard today, but still no problems.

pete 23 · Jun 17, 2011

Around here the 400 and 450's were no stranger to rear end problems. Replaced the rear housing on a 450 diesel under warranty and Put a 560 update pkg in one due to early failure. Gear failures were also part of the problem and were changed to 25 degree pressure angle for better life. Layed under more than one M also putting a patch on where bottom was pushed out. It wasn't my idea to patch that way but I was just a youngun and did as I was told.

Rear end gears for my 400...

Absent Minded Farmer

Well-known Member

rustyfarmall

Well-known Member

BillyinStoughton

Member

Anonymous-0

Well-known Member

D Slater

Well-known Member

Absent Minded Farmer

Well-known Member

SouthernFarmall

Member

sflem849

Well-known Member

SouthernFarmall

Member

john d

Well-known Member

pete 23

Well-known Member

Similar threads