Anybody else here ever swap parts between trannies? I see alot of questions about it in some of the other forums. I've certainly changed enough parts around with no problems. Anyone else?

I've swapped a 10-pinion diff out to an 8-pinion.

I've used different axles from all sorts of WH trannies.

I think all of the gears from a 300 series (1 inch axle, 4 pinion) tranny are interchangable with a 400 series (1 and 1/8th axles, 8 pinion), except the diff assy itself. Anyone ever done any of this?

I haven't had to change out the transaxle on any of my machines, but I know that they will all interchange. I have been interested in Bill's comment about the 4 pinion transaxle being equipped for 8 pinions, just need to add the gears. I am pretty certain my 414-8 has a 4-pinion axle and because I use it for plowing I would like to beef it up a little. I would really like the 10 pinion for the traction though....

I've swapped all kinds of parts between transmissions. Gears, shift forks, entire differential assemblies, both 10 pinion and differing 8 pinions, axles, etc.

What I really want to do is have the cases on a 4-speed milled to accept the 1 1/8" axles of the 8 speeds. What I've heard is the 4-speeds are stronger than the 8's as the high/low hasn't been crammed in there, reducing the size of some of the gears.


I've got enough 4-speeds laying around, but the only spare differential with 1 1/8" axles is, well, the axles are so worn in the bearing area they aren't 1 1/8" anymore. Still, it would be good enough to compare the differential bull gear to make sure it's compatible. Supposedly it is, but as of yet, I haven't checked it out.

Dale

Interesting information here. I'm not sure if I want to mess with the 8-speed in my 314, but if I needed to get into it, maybe then......

In case you do ever decide to "mess" around the transmissions, they are a lot easier to work on than you think. You can go cold turkey, and just tear in like I did the first few times, you'll get it down. But it's much easier to get the Manual Transmission repair manual. Part Number: 492-4004 About ten bucks if you buy it, I think you can download it for free from Toro.

Dale

I tore into a 4 speed cast iron Peerless transmission that was in a JD 210 a couple of months ago. The axle housing and axle were busted and I replaced the differential assembly, seals and bearings in it. It wasn't no big deal, so with a manual I probably could tear into the 8-speed. But I'm from the school that if it isn't broke, why fix it. But if you need the extra strength then it would be worth while to do so.

I downloaded the manual before I tore into my first 4 speed. The pictures and step by step in the manual is invaluable!! I also took actual pictures myself step by step to refer to when it came to reassembly It helped alot. One thing I would have to warn you about that I don't remember being in the manual is how fast the stupid little steel shot balls and spring in the middle of the shifter fork setup can shoot right past you!! Be careful!

It also doesn't state how many times you'll drop the darn things down into the case, below the gears before you finally get them to stay put. ( a bitty dab of grease helps) So it's useful to have a nice little magnet wand to retrieve them.

Dale

Well, I am building up a little tractor (867) that was inspired by Thirdroc's "Tall Girl". I'm not gonna put the 26x12x12 tires on it, but I do have a dually wheel kit I'm considering using. I had an 8 speed with the 10 pinion diff that was busted, so I changed it out to an 8 pinion, and I just mounted a 14 hp twin engine on it. Hopefully, it'll measure an 8 or 9 on the grunt meter...

I never thought about using 1 and 1/8th axles and diff on a 4 speed though. What a concept!

I've opened two 300 series 8 speeds looking for the diffs with 1 inch axles and 4 extra holes for adding 4 pinions, but I've never found one like it. My 310-8 certainly didn't have it.

I've been told never to use the 10 pinion diff in ANYTHING that I'd be pulling any load with, and I mean even a plow! The posi-trac is nice, but they tend to shatter under load.

Did all 300 series come with 1" axles? I'm trying to get this straight in another forum. 4 pinion, 8 pinion, 1" axles, 1 1/8" axles, 4 speed and 8. I've seen a lot of generalizations about which are combined with which. Like, all high lows have 1 1/8" axles. I know that's not true. Some high/lows had 1" axles.

But what about this statement that I read, "All 'Horse rears with Hi-Lo and 1 1/8 axles are 8 pinion." That's not true because some are 10 pinion, but I was thinking the 300 series had 1 1/8" axles, but were 4 pinion. If I'm wrong on that, I'll go and correct myself.

Dale

I am pretty sure that the 1 1/8" axle's are on the C-Series, 400 and 500 series. Now for the number of pinions. I am certain that my 414 has a 4 pinion rear. I am also certain my 416 has an 8 pinion rear. What does all this mean? Not a clue, I'm just as confused as anyone else about this, but I know what I have...

Nylyon, your 414 has 4 pinions? Wow, I would've thought it was eight.

I used to think the 300 series were all 1 inch, and the 400/500 series, along with all the C series and a few B series were 1 and 1/8th. But, I was told that a 315-8 had 1 and 1/8th axles per the owner.

The Toro site has drawings with multiple diffs and axles on some of the 8 speeds. I guess they just used whatever they had the most of when it came time to assemble them. I'm certainly confused now...

Well, let me clarify.... I never opened the case, my information comes from the Toro MPV as well as a parts manual for my 414-8. Both show a quantity of 4 for the pinions.

According to the parts manual, my 314-8 has the 8 pinion, so I'm assuming that's correct.

I would think so, usually the parts manuals are accurate. You probably have the 1" axle with the 8-pinion.