Quick way to identify T18 with low first gear?

jafo said:
Ok. Unhooked the Transmission . Thought I had it in 2H. Counted the revolutions. One outputshaft revolution equaled around 6.5 or so inputshaft revolutions. I found out now that it wasn't 2H but somewhere between 4L and neutral. I put it in 2H and got exactly 4 revolutions on the input to one on the output. I'm lost here.
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Something is amiss. As HH stated, fiddle around with the Transfer Case and Transmission in 4th until you get 1-1 and then put it in 1st and see what you get.
 
Torxhead said:
The T19 does have a higher first gear at around 5 to 1.
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The vast majority of T19's are 4-1 first gear. 5-1 were found in 83-85 trucks, primarily Broncos and a 6-1 T19 was put behind 460's. 5 and 6-1 T19's are kinda rare and 1st and reverse gears are not available any longer per a conversation I had with Novak when I was going through mine a couple years ago.
 
Good info here.

I wound up picking it up. I think it was worth the money. I didn't get hurt too bad. It's still an operational Transmission and Transfer Case . Pretty clean inside and good shape. I may wind up with another CJ down the road, maybe one without a powertrain. Now that doesn't sound like someone who just screwed up and is looking at the bright side does it?

I am just trying to figure out what is going on with the Transfer Case selector. What is happening to let it engage a gear before it goes into 4 low. It acts like a 2 low gear. It pops into place like it's supposed to be there. That is what fooled me into thinking it was a 6 to 1 in the first place.
 
Put the tranny in Neutral and pull the top cover......17 teeth on the front input shaft gear that mates with the Counter shaft below is a 6:32:1

Over and up to reverse is an older model , Over and down to reverse is a later model.

When you have the cover off also inspect the large sliding gear to the rear that also engages with the counter shaft below as well as the small reverse idler.........that is your first and reverse sliding gear and also the gear that takes the most abuse do to people grinding the truck into either first or reverse without coming to a full stop......that damage to the large sliding gear can also transfer down to the matting gear below on the counter shaft...normal to see the corners somewhat rounded off........broken teeth are an issue as the tranny will jump out of gear and just continue to eat itself up!
 
tarry99 said:
Put the tranny in Neutral and pull the top cover......17 teeth on the front input shaft gear that mates with the Counter shaft below is a 6:32:1

Over and up to reverse is an older model , Over and down to reverse is a later model.

When you have the cover off also inspect the large sliding gear to the rear that also engages with the counter shaft below as well as the small reverse idler.........that is your first and reverse sliding gear and also the gear that takes the most abuse do to people grinding the truck into either first or reverse without coming to a full stop......that damage to the large sliding gear can also transfer down to the matting gear below on the counter shaft...normal to see the corners somewhat rounded off........broken teeth are an issue as the tranny will jump out of gear and just continue to eat itself up!
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Thanks! I have the top off. I also have a shifter problem as in we are having a hard time getting the correct shifter. The one he gave me extends to far down so it makes it hard to shift. He is still looking for the correct shifter. I measured the distance from the top of the shifter crown area to where the shifter sets into the linkage was 3 3/4 inches. The sbifter measured 4 1/4 from the top of the fulcrum to the base of the shifter cane. So when it gets tightend down, it pushes the cane down into and between the linkage. So I got a few other issues going on too. So shifting to find reverse has been next to possible at this point until I get the correct shift cane. All I know is reverse is on the right, but don't know if it's up or down.

The gears look pretty good. No broken or worn teeth. The shift forks have some wear though. The front input shaft bearing seems a little too loose to me also. So I think it's going to need a kit before use.

Can you shed some light om tbe Transfer Case thing where it feels like it's engaged between neutral and 4Low? It falls in like it is supposed to do that.
 
NOVAK or ADVANCE has the shift lever you need. Mine was rusted so it was replaced. There are several lengths below the ball, If you have the later T-18A, reverse to the right and down, aluminum shift forks ..... the measurement would be ~3-1/16 from the bottom of the ball, from the top its ~3-3/4". The one I just measured is rusty so those measurements are approximate, but very close. A replacement will be ~$75. You will have to bend it to fit your CJ. Warning - often the reverse spring will be compromised in some way ...rusted...broken...stuck. You should have to bump the shifter to get it to move over to the reverse notch.
 
I seen those shifters. I may just go with a new one. The seller hasn't been able to find the original, so far.

I was considering trying the shift cane out of my T-150 . Or at least measure it to see if it will work.

So reverse on the 4 speed is outside the normal shift linkage then. Ok. Should be a bump over to the right of 3rd and 4th gears. Got it.
 
tarry99 said:
Put the tranny in Neutral and pull the top cover......17 teeth on the front input shaft gear that mates with the Counter shaft below is a 6:32:1

Over and up to reverse is an older model , Over and down to reverse is a later model.

When you have the cover off also inspect the large sliding gear to the rear that also engages with the counter shaft below as well as the small reverse idler.........that is your first and reverse sliding gear and also the gear that takes the most abuse do to people grinding the truck into either first or reverse without coming to a full stop......that damage to the large sliding gear can also transfer down to the matting gear below on the counter shaft...normal to see the corners somewhat rounded off........broken teeth are an issue as the tranny will jump out of gear and just continue to eat itself up!
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Finally had time to count the teeth. It was like 23. So I'm looking at a 4.03 first gear then. Oh well. I still have the 435 to go with and a spare 4 speed with Transfer Case in the corner if needed for another project. On to the 435 then. No more T-18 searches.
 
All one machined casting.
 
Thanks, i'll look at that. To fill in what I was doing today first.

I took the trip to a friends house who said he had two 435's. So I went to look at them today. I get there and they were sitting on his flatbed trailer. He's a mud racer, so he has quite a few broncos late 60's thru late 70's. These two Transmission came out of '79 broncos. I get out and immediately notice they are two different Transmission . I recognise the 435 from the aluminum top right off, but the other looks like maybe a T-18 . Ok I look up a casting number and sure enough it's a T-18 with the 6.32 first gear. Input shaft is too short. PTO is on passenger side. He just took these teans out and left them in the elements. So I load it up hoping maybe I can do a gear swap. I finally got the shift cane out, after a cup of panther ****. Drilove it out with a hammer and peeked inside and it is nothing but a ball of rust inside. Bummer. I got a feeling the 435 is going to be the same. What a shame. Welp, back to square one and I'll keep looking.
 
Torxhead said:
It is rated as a medium duty Transmission :https://www.novak-adapt.com/knowledge/transmissions/manual/t176/
It has a 4.07 first gear, but combined with a Dana 300 that has the 4 to 1 conversion, and a moderate rear gear ratio, you would be in great shape to do most trails and be good on the highway.
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Ok. I was thinking about this yesterday. The T-18 I came across has is the 4.03 first gear. What if I did the 4 to1 swap in a Dana 300 coupled to the 3.45 gear ratio at the axles, I wonder if this would still make for good trail riding.
 
mtnwhlr said:
They are a great Transmission the one I had I sold to a guy that was putting a SBC in his CJ. If I hadn't been buying a house at the time I wouldn't have sold it and put in my '84.
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Hmm. I wish I would have went ahead and got this Transmission when I had the chance. The guy I bought my Dana 300 from had this mated to a 176 he was also selling. I was under the impression for some reason it was a weaker Transmission . Maybe in compairison to a T-18 or 435, but still a good Transmission then. Ok.
 
jafo said:
Ok. I was thinking about this yesterday. The T-18 I came across has is the 4.03 first gear. What if I did the 4 to1 swap in a Dana 300 coupled to the 3.45 gear ratio at the axles, I wonder if this would still make for good trail riding.
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Another thing that should be included in your gear selection would be tire diameter. The way I see it, tire size should be the minimum you need to do the trails that are in your area. With a 3.45 diff ratio, should put you in good shape for highway driving and moderate trails with a 31" diameter tire to start with.
 
Torxhead said:
Another thing that should be included in your gear selection would be tire diameter. The way I see it, tire size should be the minimum you need to do the trails that are in your area. With a 3.45 diff ratio, should put you in good shape for highway driving and moderate trails with a 31" diameter tire.
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:agree:
You would have a crawl ratio of 56, which is good enough for mild trail. Not much for crawling rocks, but still enough to have fun with.
 
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