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t98 ID help |
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chasendeer 
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Joined: 24 Feb. 2012 Location: Napa,CA Status: Online Points: 1088 |
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 Topic: t98 ID helpPosted: 15 Dec. 2019 at 9:35pm |
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I have a 55 CJ5 with a factory t98 in it, the vin is correct for a factory t98. But it appears to have a long input shaft out of a 5/4 ton jeep, but has the front adaptor plate (about 3/4" thick) to an aluminum adaptor to SBC.
I'm hopefully going to be using this with a SBC, but I would like to use a shorter Ford input shaft. Can this be done if off the self parts? Thanks Jay |
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Lee MN
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Posted: 16 Dec. 2019 at 3:13pm |
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No expert, but the Ford input is the shortest I’m aware of so unless you can shorten up a Chevy bellhousing that’s not going to work, I’d have the current shaft shortened & resplined as required. Or go SBF
 Lee 
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LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
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lowenuf
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Posted: 16 Dec. 2019 at 4:35pm |
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novak sells the input shaft and pilot bushing that u need....
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45 #10012
45 #10033 ACM #47 45 #10163 ACM #188 57 CJ5 Dauntless V6, T-18 4-speed, D-44 rear/D-30 front, D-20 twin stick |
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chasendeer
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Posted: 17 Dec. 2019 at 2:11am |
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Spoke with Herm today about it. He thinks its a Scout input shaft.
Jay |
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oldtime
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Posted: 17 Dec. 2019 at 3:45pm |
I don't think so..... I have a 1956 T98 and that was the very first year that they were used in CJ-5. Because of mainshaft pilot diameter the maindrive gear must be from another T98 not a T18. Only a few specific T18 parts can be interchanged with T98. It may or may not be feasible to adapt this to your specific application. Depends on exactly what combination of parts you now have and exactly what you plan to mate it to. It's not reasonable to identify what you have without pics and / or specific details concerning various parts.
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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chasendeer
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Posted: 17 Dec. 2019 at 6:29pm |
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Thanks for the help. I was wrong its a 58. Vin is 57548-846xx. I spoke to Herm yesterday and he said it sounds like it has a scout shaft in it. He also said that he has the parts to make it a "Ford" style input, depending if its a close or wide ratio.
Thanks Jay |
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oldtime
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Posted: 18 Dec. 2019 at 12:39am |
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Well sometimes Herms thinking is very questionable.
Narrow Ratio (4.02) was not available in 1958 and I'll leave it at that. You have any pics to load ? What engine are you wanting to mate the T98 to ? Is this a Jeep T98 an IH T98 or a Ford or something unknown. As you know the T98 was used with very many industrial applications. |
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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chasendeer
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Posted: 18 Dec. 2019 at 12:56am |
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I here you on his thinking about it being a narrow but he just threw it out there on phone and told me to pull the cover and count gears.
I do have some crappy under the jeep pics but can't get them to upload here. Can I email to you? Planing on doing a Kubota set up as a SBC. Thanks Jay |
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oldtime
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Posted: 18 Dec. 2019 at 1:11am |
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Well it's sometimes a whole lot more than counting teeth. Example...Some industrial T98 gear sets had a reverse helical cut. At best the maindrve tooth count only designates the ratio. Probably be best to have someone here upload pics for you. Need to see the left side of case. The shift tower assembly. The rear adapter plate. The front adapter plate and bearing retainer. Need to know thickness of front adapter and how far the maindrive gear sticks out from front of case. Need to know diameter of existing maindrive gear. Edited by oldtime - 18 Dec. 2019 at 1:15am |
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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chasendeer
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Posted: 18 Dec. 2019 at 2:26am |
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That’s more than I can offer at this time. I will post that when I pull it out of jeep.
Jay
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chasendeer
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Posted: 05 Jan. 2020 at 5:31am |
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Who can post pics for me?
Thanks Jay |
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48cj2a
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Posted: 05 Jan. 2020 at 11:52am |
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I can post pics for you - email me unedited versions
     Edited by 48cj2a - 05 Jan. 2020 at 1:42pm |
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Art C USAF (Retired)
47 CJ2A #134955 Project 48 CJ2A #206759 62 L6226 Station Wagon #58167 10900 45 T3-C #191 Project http://www.bantamt3c.com http://www.48cj2a.com |
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48cj2a
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Posted: 05 Jan. 2020 at 1:42pm |
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Pics posted
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Art C USAF (Retired)
47 CJ2A #134955 Project 48 CJ2A #206759 62 L6226 Station Wagon #58167 10900 45 T3-C #191 Project http://www.bantamt3c.com http://www.48cj2a.com |
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chasendeer
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Posted: 06 Jan. 2020 at 3:07pm |
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Thanks for posting the pics. Anyone have an idea on what this may be?
Thanks Jay |
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oldtime
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Posted: 06 Jan. 2020 at 4:18pm |
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1st pic..
Notice the TC shift levers. The High/Low shift lever looks to be modified for a Jeep. Both T-98 TC shift levers would normally be straight up / down with no bends. Was it heated and bent or possibly its an IH part. Also the T98 shift cane length as shown is much too short to be a Jeep T98 shift cane. 2nd pic.. The main drive gear diameter is certainly too large to be for any jeep prior to 1963. How thick is the aluminum adapter plate ? Very unusual to see a transmission mated using 2 adapter plates. 3rd pic.. Mostly typical except I've never seen the "F28%0" before. 4th pic Note how the rear adapter plate is clocked downward. That certainly must be an IH rear adapter plate. Finally ... Due to short rear propeller shaft I'm guessing this to be from an early Scout model 80 1960-1965. If I'm not mistaken the later Scouts went to a D20. The T98 casting nuances seem to fit this era. Edited by oldtime - 06 Jan. 2020 at 4:31pm |
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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chasendeer
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Posted: 07 Aug. 2020 at 3:37pm |
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I finally got this thing apart and figured out, I think. I appears to have been a T98a when it began its life, then they swapped the input shaft to a M series 1.125". In doing so they modified the 4 cylinder front bearing retainer. The front 1" steel adaptor is part number 910467-p-1 witch appears to be the correct 4 cylinder adaptor. Rear adaptor is marked t98a.
I ended up using a t18 for my project, so this will likely be sold. Thanks for the help. Jay |
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lelant
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Posted: 05 Oct. 2022 at 11:40am |
  I know it’s an old post but I have the same question in identifying this t98. The photos are from an add. I’ve not been able to look at it in person. According to the owner the following ID # is on the transmission 148H G242. Any help is greatly appreciated. Potential application is for a 47 Cj2a.
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Todd Leland
50 cj3a - Buit by Brennan’s Garage 47 cj2a 68 m725 |
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oldtime
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Posted: 05 Oct. 2022 at 12:52pm |
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I can’t even be certain it’s a T98 from the poor quality pic.
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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chasendeer wrote: