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Aldon

GT22-8 Modifying GT14 to 8 speed and 22hp Predator

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I am following this one! It sounds awesome and I look forward to your progress!

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I've seen your work Aldon, I'm in as well!

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:woohoo:   Been looking forward to this one. The six speed Transaxle from a 1057 or 1267 (5060) is a limited slip and they work great, I have one in one of my 953s. You may be able to pick up the center section from one of our parts vendors.

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1 minute ago, 953 nut said:

:woohoo:   Been looking forward to this one. The six speed Transaxle from a 1057 or 1267 (5060) is a limited slip and they work great, I have one in one of my 953s. You may be able to pick up the center section from one of our parts vendors.

What diameter axles are one those?

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5 minutes ago, Aldon said:

diameter axles

1 1/8

'

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Hmmmm. Well if I run across a parts tranny from 953 or 1054 before I start mocking things up, then there is still a chance this could end up with a limited slip.

 

Otherwise, I plan to try and mount Go-Kart disc brakes to the backside of the D-series Hubs as they have 4 tapped holes conveniently located on backside. Spaced 2 3/8" inches apart. I am not absolutely certain this will work until I mock it up and custom set wheel backspace. But it works in my head! LOL

 

The brakes, essentially turning brakes, can be my poor mans limited slip.

Edited by Aldon
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We kinda had this discussion about the 5060 and it's pros/cons for a plow tractor transmission the other day when I visited @Shynon's. Not that you might plow with it Aldon but anyway it was brought up if that 50 yo spring were to break in there... yikes. Another con is the aluminum side plates that holds all those pinions in ther might not hold up to the rigors of plowing. Mike @prondzy actually showed me a side plate that was cracked due to overtorquing the differential bolts. Probably not huge concerns pending what you might use this machine for. We are just plowing fruitcakes and looking for the strongest unit for doing that. Either way double :handgestures-thumbupright::handgestures-thumbupright: for what you have in your head! :)

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1 hour ago, Aldon said:

run across a parts tranny from 953 or 1054

:no:   1067 or 1267, I transplanted one into a 953, the stock 953 is an open differential and not known for their strength.

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Lol. :unsure:

 

I heard you that time:-)

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I got it the first time Aldon:ychain:....Richard that has got to one brutal 953 in the rear then!

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Definitely very interested in this thread. Just out of curiosity which 8 speed tranny do you actually have model wise? The 8 speed / 8 pinion would be the strongest but I don't think it has limited slip. My Raider also has the 5060, which is the 10 pinion limited slip with the 1-1/8 axles. I also read in a different post about modifying a 10 pinion it to an 8 pinion (albeit with some grinding). 

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The tranny is a 8 speed 8 pinion. But the blessed maker likes to challenge me. So somehow I ended up gettting one of the few 8 speeds that they ran out of 1533 bearings for and used a unique bearing on. @Racinbob and @stevasaurus identified as a 111199 if I recall.

 Some pics of the state it was in when I got it....it's not obvious but the hi-lo shift fork was broken. I have new parts ready to install as it goes back together. Also a pic of the unique bearing. 

 

I have been been unable to locate new bearings to replace. If anyone knows of a source, send me a note. Thanks

IMG_0117.PNGIMG_0118.PNGIMG_0119.PNGIMG_0120.PNG

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Thanks. Much appreciated.

 

I think I spent all my time trying to find the bearing elsewhere using the  S875B part number on the bearing. ***** I just ordered a pair ! *****

 

For those interested, here are some pics of the bearing comparisons, along with what I was able to measure them.....disclaimer "I am not a machinest" as such, take that into account. also a couple pics of the broken shift fork and the NOS parts. I will capture tractor stuff in the next post for those concerned that this thread is too Tranny heavy:roll: LOL

Comparison Numbers 111199 vs 1533.JPG

Side by Side comparison of 111199 and 1533 bearings.JPG

Top view Comparison of the 111199 vs 1533.JPG

Broken Shift Lever2.JPGBroken Shift Lever3.JPG

Shift Lever NOS parts.jpg

 

Pics of GT14 Hydro Diff vs 8 speed 8 Pinion Diff before modification.

 

GT14 Hydro Diff vs 8 pinion 8 speed Diff.JPG

 

Edited by Aldon
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Excellent feedback Steve! In fact, read your PM:-)

 

Once I have consulted with the swami again, I may yet go with limited slip. It would save a whole lot  hassle with developing turning brakes.

 

So as mentioned previously, to get the ball rolling on non-tranny stuff.

Just prior to winter I made a parts tractor run with @fast88pu so as they sat on the trailer when I returned and dismantled waiting for spring thaw to get started.

Tentative - waiting on @Shuboxlover - swept axle, reduced steering set up. Highly probably this will be part of this build.

3 point procured from fellow member here who is selling reproductions on Ebay. Not sure if he is set up as vendor on the square.

22HP Predator procured.

Plan is currently to use 29x12.5-15 AG tires on rear. 

For a couple reasons I decided to go with D series Hubs. 1, easier to do turning brake using go kart disc if I go that route, 2, more importantly, easier to build wheel to custom spec due to insert availability. Both the blank and insert available from miller tire. Shout out to Kyle who has helped me with this stuff quite a bit.

Now the pics:

3 point.JPG.jpeg

22hp Predator.jpg

Parts Tractors.JPGParts ready for restoration.jpg

6x6 15 inch rim insert.jpg10x15 blank.jpg

 

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4 hours ago, stevasaurus said:

(1968) had aluminum end plates...1969 and up have steel end plates

Not to steal your thunder or thread  Aldon but @stevasaurus my 67 had AL plates and can the steel end plates be used on earlier units? Do you think WH knew the AL plates were a weak spot and went to steel?

Those bearings are awfully close in dims Aldon but Lowell's won't work??

Edited by WHX9
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Actually I was comfortable using the 1533's if I could not locate the correct ones. I had planned on using the green loctite and using a punch to deform the edge as I expect new bearings to far outlast my needs. However since I was directed to correct bearings, Ill use them and save a potential future owner the hassle of having to heat the bearings and extra effort to remove the punch areas.

This is the product I had planned on using but will not require now.

Green Loctite.PNG

Edited by Aldon
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Yes that's a good product to have on the bench anyway. Hope you don't give up on the dual brakes idea tho! :)

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OK...the 5060 trans had aluminum plates...the 5071 and 5073 had steel plates.  :)  and yes you can interchange them.  Actually, the #5060 I rebuilt had one of each...tells me someone else has been in there.   :occasion-xmas:

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Pretty interesting build, Aldon. I'll be following this also. 

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It may be a while before I post anything of significance although I'll respond to questions. 

 

As of tonight I finally cleared the latest significant hurdle. And I am embarrassed to say how happy I was to accomplish such a simple feat.

 

I have wrestled on and off for weeks and tonight I finally managed to break that danged hitch pin loose from the larger half of the tranny case. I was concerned I was going to crack the casting but it finally gave up!!!!! 

 

And since it seems silly to post such a minor event, I'll post a couple pics of the D-series hub for those not familiar with them. The 4 threaded holes on the backside are where I am considering mounting a go-kart disc brake set up to act as turning brake and assist as a poor mans limited slip diff. 

IMG_0126.JPGIMG_0127.JPGIMG_0128.JPG

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