What transmission do I have?

Tiny
BCRAIN11
  • MEMBER
  • 1985 JEEP CJ7
  • V8
  • 4WD
  • MANUAL
  • 211,000 MILES
I have a T18-1B transmission behind a Dana 20 transfer case. The drain plugs are on the passenger side, I need to know if it is a jeep or ford t18. Any ideas?
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Tuesday, April 26th, 2011 AT 2:41 PM

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Tiny
CJ MEDEVAC
  • EXPERT
I'M SHOWING 3 TRANNYS

TREMEC T-176 STANDARD

BW T-4

BW T-5

YEARS VARY, ALONG W/ ENGINE SIZE---IS THIS A MOD OR IS IT OEM?

VIN MAY HELP AND CASTING OR STAMPED NUMBERS TOO

WHO TOLD YOU THIS IS WHAT YOU HAVE (T-18-1B)?

ALSO TRANSFER IS BEHIND THE TRANNY!

DANA 20 --DID NOT COME IN THAT YEAR/ SURE ITS NOT A DANA 300! I HAVE A 20 IN MY '77 CJ5 OEM

COME BACK, I WILL ASSIST YOU WITH ALMOST ANY CJ ISSUE--I LIVE FOR THIS!

THE MEDIC
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Tuesday, April 26th, 2011 AT 11:27 PM
Tiny
BCRAIN11
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This jeep is far from OEM. I am sure its a T18-1b, that is what the casing on the driver side says. Like I said the drain plugs are on the passenger side, didnt pay any attention to what side the PTO was on. I had a friend drop it a few months ago and put twin sticks on the transfer and it is a 20 and maybe its been frankienstein together not really sure. First jeep Ive ever owned, so just learning as I go. I've been trying to order a rebuild kit for the tranny because it is making a grinding noise in 4th around 3000 rpms and also when I let off the gas as it coasts. I went to norvak to buy the kit and thats when I ran into it could be either a ford, jeep or IH t-18 transmission. The guy at Norvak said by the description of T18-1B he was guessing ford but wasnt sure. My friend doesnt know for sure either. Just need to know without pulling the transmission which rebuild kit to order. Thanks!
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Wednesday, April 27th, 2011 AT 4:21 PM
Tiny
CJ MEDEVAC
  • EXPERT
Still researching! Not a paid mechanic, Have had 6-CJ5s (All '83 and under) Presently the '77 CJ5 and my '46 Willys. All I've ever had for primary transportation, since I began driving on the road, in 1981! Keep it fix it, you will always be happy! I can assist you in tweaking it and getting it efficient.

Here's 2 questions from the same guy, you will see how far I will assist you, you may get something out of it too! Just a little reading material for you in the waiting room, while I'm under your Jeep!

http://www.2carpros.com/questions/1980-jeep-cj7-v8-wont-start

http://www.2carpros.com/questions/1980-jeep-cj7-timingtuning-problem-with-a

I recently installed a full kit my T-150 (Used my case, everything else is new) Also tweaked another transfer case, mine locked up and busted the case.

This is what I got so far (will continue to research):

Warner T-18 was an option for a inline 6, 1972-1975

Warner T-18A was an option for a inline 6, 1976-1986

Dana 20 transfer case was used 1972-1979

I'm about to go to the site where I got my stuff, and investigate, The net has been down 2 nights in a row, sorry I have not responded sooner.

Click on my avatar--this too, may interest you also--let me know

Your Turn

The Medic

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Thursday, April 28th, 2011 AT 2:26 AM
Tiny
CJ MEDEVAC
  • EXPERT
These may HELP or Confuse you! You may have already been to 'em.....Do you know how to check for these 1st gear ratios, with tranny out?

http://www.jeepsunlimited.com/forums/showthread.php?t=534799

This is where I got my parts for my T-150--For the T-18, they do have some of the parts labeled with TAG NUMBERS....By chance, yours still got a tag?

The Medic
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Thursday, April 28th, 2011 AT 3:23 AM
Tiny
CJ MEDEVAC
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OK, forgot to put my link under the last sentence...here it is

http://www.vintagejeepparts.com/Parts_Transmission_13.asp

The Medic
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Thursday, April 28th, 2011 AT 3:26 AM
Tiny
BCRAIN11
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Where would the TAG NUMBERS be located? All I could find was the T18-1B on the driver side casing. I will have to take the floor peice up and look at the bolt pattern this weekend. That will help identify I think which if its ford or jeep. Also would the T18-1B be the granny 1st or not? When I have it in first its pretty slow moving, in 4low I can put it in 1st and stand out side and walk besides it steering it. And those pictures helped me out alot, oh and do you think I should go ahead and rebuild the transfer case anyways sense it will be out with the tranny? Or just stick rebuilding the tranny and see how that works?
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Thursday, April 28th, 2011 AT 11:46 AM
Tiny
CJ MEDEVAC
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Dis one here, is described as being for a IH SCOUT---You see any tell-tale differences?

Sorry, I'm not "Johnny on the Spot" with a perfect answer!

Tag on this one is on top, see it?

'Recon a small/ medium mirror, or removing the "Hump Cover" would let you see this "Tentative Tag Location"?

http://www.youtube.com/watch?v=Mdplq9TOJ94

Feller in this video, says "This One" would require "Mods" to make it work inna Jeep...Can you see differences in yours from his? That may rule out IH, still do not know what would rule out Ford.

Have You called parts places, to see Specifically, Where the differences are in them...other than gear ratios?

Still looking for actual any EZ to identify differences....bear with me.

The Medic
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Thursday, April 28th, 2011 AT 12:52 PM
Tiny
CJ MEDEVAC
  • EXPERT
Far as determining what 1st's ratio is. Tranny installed

What I might try is:

Transfer in 2 high

With the Jeep in 1st GEAR!

Remove rear drive-shaft at transfer case

Mark and Watch the transfer case rear yoke

Mark harmonic balancer

Have Competent Buddy rotate the engine with a pull handle/ ratchet or wrench. Really slow, keeping up with number of revolutions (and parts of a revs he is doing)---BY HAND-NOT STARTER!

EX: 4.02 Engine revs would equal one drive-shaft rev--w/ 4.02:1 1st gear ratio

6.32 Engine revs would equal one drive-shaft rev--w/ 6.32:1 1st gear ratio

The other gears could be checked the same way too, 'cept 4th, it's 1:1, that would tell you nothing!

Whachu think?

The Medic
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Thursday, April 28th, 2011 AT 1:23 PM

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