555A trany parts

[robert]

Hi everyone, I recently posted the missing ID tag, and trany ID problem. This is what I came up with. Someone called it a frankinloader....well, that about sums it up. Near as i can tell , the trans is the same that came equipped with the 555A model, so I am going to attempt the overhaul with the 555a manual. I know I need a new torque converter housing (its cracked and leaking on both sides near mount holes), and im sure I'll need friction plates, drums and pistons. I realize this is going to be a time consuming and expensive repair. Does anyone know of a good lead on parts, besides the dealer? Anyone out there have a good, used torque converter housing?

[tjdub]

If it really is a 450B dozer with a 555 transmission, I would try first try to evaluate what modifications have been done to make it fit. You may be able to find a good used HLR transmission out of a 450 from a salvage yard cheaper that you can rebuild that 555 transmission. The big question is if it will still fit without other modifications.

I would like to see pictures of your machine. I have no experience with the 550/555 machines, but it seems pretty amazing that the transmission from one would mount right into a 450. Stranger things have happened though.

I have heard of re-powering a 450 crawler with a 239 engine out of a skidder, but I think the 239 and 219 engines are very similar.

[JWB Contracting]

Did someone just put the wrong decals on your crawler?

What is the engine size and model?

Post some pics and we will be able to offer a little more assistance.

[digitup2]

They were two different machines and look up the hydraulic pump location lets see photos .Twin Screw only made the converter not the transmission .they even had different frames !What ever the beast I doubt it's 550 origin got to have photos!.Digitup.

[JD430C]

Sounds to me like you have a 550 series crawler that has the wrong decals, and at some point had a engine swap. Seems to be common up here, but agree that we need pics to confirm what it is. Also make sure you know what model you have before ordering parts. Digitup told me awhile ago that there is a big difference in Trannys between a 550/555 and 550A/555A.

My .02

Andrew

[robert]

I took a tape measure to this machine, it measures 8'4" in height, 13' 2" in length, but only 5' 6" in width. If you looks at specs, height and length are close to a 555A, within an inch or so. But the width is narrower than a 450B. Im not sure, but maybe its a 555A frame, trans, and finals...possible motor, but the tracks measure just narrower than a 450(450 measure's 6'). The motor has been replaced, no ID tag. The injector pump has been replaced, not the right ID tag according to Deere tech's. The ID tag is missing off of the crawler. The trans is a "powershift twindisc", model TDC 33 430, spec 07068, MF 200, ser JD 730 L, 3 spds forward and reverse. Which near as I can tell, is the 555a trans. The guys at Deere are trying to tell me that the trans belong in a 450C, according to the tag #'s. I am working on pics now, I'll have them posted asap.[/img]

[robert]

http://photobucket.com/robertfk Here are a few pics that I have, I will get some close ups of trans top and bottom, then add them.

[digitup2]

That is an early 555 If it has a twin screw plate on it then it had a converter rebuilt and the plate added .Look to see if your motor has a elevated water pump on it .They sit up fairly high and are a fair size pump that is mounted higher on the engine front plate than a usual 4 cylinder Deere it should have dual thermostats as well .Digitup.

[tjdub]

Look to see if your motor has a elevated water pump on it .They sit up fairly high and are a fair size pump that is mounted higher on the engine front plate than a usual 4 cylinder Deere it should have dual thermostats as well .Digitup.

robert said in another thread that the engine tag says JD4219T, so it doesn't sound like it the engine is original.

It's definitely not a 450B/C though That 219 motor could have come out of one though.

[vestor_guy]

I had a 450 with a missing tag. You can get a replacement from JD but a service rep has to come out to verify the number and install it.

The secondary number was stamped on the transmission case housing. JD will know where it was stamped on your machine. If the tractor has been painted, the numbers will probably be filled with paint.

[robert]

http://photobucket.com/robertfk a few more pics here, both sides of engine, top and bottom of trans. The water pump does not look high mounted to me, and it does not have dual t-stats.

[digitup2]

That is a.Deere 4276 block see the engine front plate it has the water pump mounted high on it and the front plate even holds the hood up Deere used the larger water pump off of the 6329 block so when mounting on the engine front plate they raised the pump nearly as high as the valve cover the 550-555 were the first crawlers they did that on you dont have a dual thermostat so yours is the first year dual thermostat was out soon after this turned out so good a system that Deere used it for the 450D and 450E series as well as the 550A and 550B.If you found a plate that says anything other than 4276 on it it's BS and if they installed a plate that says twin Screw on it on the trany I wouldn't believe that either the only thing out of place is the alternator and lots of those old Delco alternators have been installed.origional was a Motorola unit those old 550-555 Deeres were good units .Digitup.

[robert]

ok, so its a 550, or a 555? I am assuming a 555a, because of looking at vintage sale brouchures on JD web site, the 555a was the first loader to have that trany. Its a "twindisc powershit", the tag looks origanal, 4 cast rivets on the left side of torque convertor housing. And glad to here they are good machines. Well, it has a new motor in it, little over 500 hours now, and i just did the under carage last year. After the trany, maybe I'll have something. Another question, whats with the narrow bucket and track width? They dont match a 550 series, the measure up to a 450 series. So again, does anybody know where the best place for parts? And maybe a used torque converter housing thats in good shape?
Thank you everyone who replied to this post, JD hasent been able to tell me what this crawler is yet, also another forum on another site. Sounds like digitup has the infinite wisdow in this teritory. Thanks again for all the help

[robert]

Oh, and one more thing....anybody looking for a parts manual or a tech manual for a 450b The tech manual is new, and the parts manual is old, but in excellent condition....seein's how i cant use them much.

[tjdub]

.If you found a plate that says anything other than 4276 on it it's BS

Don't the 4276 engines have the oil filter mounted horizontally in the middle of the block? The engine in those photos sure looks like the 4219 in my 450.