Difference in TK4 and TK5?

[Original_Ranger84]

I have a Toyo Koygo 5 speed in my truck (well out of my truck.) And I just have one gear to replace, the input drive gear. I am trying to locate the part to replace it and so far I have called to get it rebuilt at a shop in soldotna (70miles away) or get a new one shipped to me from oregon to anchorage then down here for 900$ with shipping included. I am trying to just get the new gear but I have only found one transmission which is a Toyo Koygo 4 speed. Would they have the same sized gears minus the overdrive gear? So could i use the gear from it?

Also from those who have repalced gears, did you have to cut the bearings out to get to the gears or did you just remove some retaining clips?

Thanks!

 

[MAKG]

For $900 can you fly to Seattle and pick it up yourself? And add in the gold plating?

At that kind of price, get another truck. Seriously.

 

[weejohn]

i've got parts from a TK5 i took apart 3 years ago. get me pics of what you need and i'll let you know if i got it still

 

[weejohn]

i'm in michigan btw

 

[Original_Ranger84]

Yeah But people here won't sell anything that runs good and with little to no rust for less than 1,500$. Or i could buy a completely rusted out car that doen't run and get it for 500$ (stupid pos car) then spend the time i need driving it on fixing it and putting atleats 500 - 1,000 dollers on parts. That was also for a new one. Plus all the suff and work i have put into it make it not worth it. I want to keep this one any way and get a good gas mileage car to drive to school and make this my weekend worrior.

I actually just got a used one and an engine of the same type with all of the goodies like 4 barrel holly carb and the offy intake with a GM dura-spark convert for 400$. Thanks though.

I need the Input shaft gear. The first gear on the shaft that is apparently part of the shaft itself. I'll try to get a better pic tonight.
I am going to rebuild the one i have now so if the one i get breaks i won't have to go through this again.

 

[Original_Ranger84]

For $900 can you fly to Seattle and pick it up yourself? And add in the gold plating?

At that kind of price, get another truck. Seriously.

Why would I fly down there and get it which would cost me more time and money then if they just ship it to me?

I am going to get another truck/car sometime though.(keeping this still)

 

[MAKG]

Why would I fly down there and get it which would cost me more time and money then if they just ship it to me?

I am going to get another truck/car sometime though.(keeping this still)

Because a TK input shaft is a $150 part. Not a $900 part.

A whole transmission would be expensive at $900 shipped to Alaska.

To be honest, I'm questioning whether you really should tackle this if you're talking about cutting bearings.

 

[Mutant Pony]

If the gear is wiped off the input shaft then the cluster shaft is shot as well. I have rebuilt a bunch of these. The input shaft is the same from a tk4 but, the cluster has to come from a TK5. You also need to replace the pilot bearing.
I made up special tools to remove the bearings and to torque the nut on the back.
The input is the second part to go in the trans from bare. In order to fix your trans it will need to be COMPLETELY disassembled. The first part in is the cluster.
Your best bet is to find a used trans or upgrade to an M5OD.
The tk5 is not a bad trans and is certainly not as weak as some would have you believe but, they are old and parts are hard to find and expensive. M5ODs are common and parts are readily available. It will cost a bunch for the initial upgrade but, it also gives you the option to upgrade farther in the future.

 

[weejohn]

well i didn't take it apart i paid someone to tell me what was wrong and the price blew my mind. if you'd like i can get some pics up friday and you could make a offer on everything i got left. i was told the input shaft was bad on mine.

 

[Original_Ranger84]

Because a TK input shaft is a $150 part. Not a $900 part.

A whole transmission would be expensive at $900 shipped to Alaska.

To be honest, I'm questioning whether you really should tackle this if you're talking about cutting bearings.

I know the 900$ was for a new transmission and the shipping to alaska. the local shop wanted 900$ to just replace the gear. The cutting the bearing was because every other transmission i've done had a really impossible bearings to get out and i can get a new bearing from my freind at napa for 10$.

 

[Original_Ranger84]

If the gear is wiped off the input shaft then the cluster shaft is shot as well. I have rebuilt a bunch of these. The input shaft is the same from a tk4 but, the cluster has to come from a TK5. You also need to replace the pilot bearing.
I made up special tools to remove the bearings and to torque the nut on the back.
The input is the second part to go in the trans from bare. In order to fix your trans it will need to be COMPLETELY disassembled. The first part in is the cluster.
Your best bet is to find a used trans or upgrade to an M5OD.
The tk5 is not a bad trans and is certainly not as weak as some would have you believe but, they are old and parts are hard to find and expensive. M5ODs are common and parts are readily available. It will cost a bunch for the initial upgrade but, it also gives you the option to upgrade farther in the future.

The gear is not wiped its just like 3 teeth. And I got another trans which is a tk5 so i'm gonna take my time on this for a back up.

Would an M5OD fit on an 84 with a 2.8L?

 

[Original_Ranger84]

well i didn't take it apart i paid someone to tell me what was wrong and the price blew my mind. if you'd like i can get some pics up friday and you could make a offer on everything i got left. i was told the input shaft was bad on mine.

Well thanks anyway. The input shaft and gear was the only thing I needed.

 

[MAKG]

Well thanks anyway. The input shaft and gear was the only thing I needed.

Are you ABSOLUTELY SURE? 'Cause it's very hard to break the input gear without breaking the front of the cluster as well.

Even little pits or chips in gear surfaces are time-bombs.

I've NEVER had to cut a bearing out. I have had to get creative about pullers. Just about every transmission does use press fits. Cold cutters risk damaging the aluminum case, and hot cutters (torches, etc.) are not a good thing to use around hardened gears.

 

[Original_Ranger84]

Are you ABSOLUTELY SURE? 'Cause it's very hard to break the input gear without breaking the front of the cluster as well.

Even little pits or chips in gear surfaces are time-bombs.

I've NEVER had to cut a bearing out. I have had to get creative about pullers. Just about every transmission does use press fits. Cold cutters risk damaging the aluminum case, and hot cutters (torches, etc.) are not a good thing to use around hardened gears.

The Gear is the first thing in the cluster and it is only 2 or three teeth the transmissions still spins smooth and like new except it it makes a little noise when the broken teeth are supposed to connect. And the rest of the trans looks to be in good order no pitting or chips just the smooth sorta fuzzy look all around.

I only had to cut them out because that is what the shop told me was easier. But i am making a puller out if some fence pipe and stuff.

Thanks for the warnings though.

 

[MAKG]

OK, you're about to waste a few bills.

The INPUT GEAR and CLUSTER GEAR are two different parts. Don't mix them up.

If your cluster is boogered up front, your input gear probably is as well. AND your case (odds are, you spun the front countershaft bearing and that's what broke it).

You NEED to explain what happened, or your repair will NOT work.

"Only" two or three teeth breaking off the transmission is a bit like saying "only" one wheel fell off your truck. It can cause MASSIVE carnage.

Especially, what is the fuzzy stuff? If the gear was ground up, what ground it (it's probably chewed up)? If it's the case, well, you can guess what you need.

This transmission does NOT sound rebuildable to me. You're ignoring very serious stuff! And making noise without making pits or scores is, well, just a bit unbelievable.