Transmission Top Shifter Assembly (New)
Fits 46-71 Jeep & Willys with T-90 transmission

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Transmission Top Shifter Assembly (New)
Fits 46-71 Jeep & Willys with T-90 transmission
Transmission Top Shifter Assembly (1 required per vehicle)

New complete transmission top shifter assembly. Just bolts into place and is ready for install.

T-90 Transmission

46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
55-71 CJ-5
50-52 M38
52-66 M38A1
46-64 Truck
46-64 Station Wagon
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Availability: In stock

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Questions: I have a 1963 CJ5 with a T 90 transmission the existing transmission top shifter assembly has a number written on it that says T90-148 The transmission shop is telling me it’s OK to switch it to T90G-148D They did not use a gasket this bothers me please advise, I should order a gasket for this if the shifting gear and the training shop that rebuilt it for me says the shifting handles good even though the numbers don’t match please confirm it ok and can I get a gasket through your firm thank you
Question By: Chuck Uptergrove on Jun 28 2022 5:51 PM
Not sure I fully understand the question, but as long as its a T90 for the 4-134 it should be fine. You always want a gasket on your top shifter to case.
Answer By: Willys Jeep Parts Tech on Jun 28 2022 11:20 AM
Questions: 1965 cj5 Mark Iv with t90c (labeled t90-a) with column shift. Is this part 946111 all I need to convert to floor shift? Any internal mods to the transmission required?
Question By: Neill on May 16 2021 10:39 PM
There is more to it than that. Please email to help.
Answer By: Willys Jeep Parts Tech on May 17 2021 5:43 AM
Questions: The T-90 in my 56 M38A1 when putting into first gear it acts as though its stuck in forward and reverse at the same time, will not move. After changing gears (2nd-3rd and back, all while sitting still) it will eventually fully engage 1st gear. Doesn't "appear" with the naked eye to have any wear on the shift forks. Could this possibly be the shifter assembly or inside the transmission do you think? Thanks
Question By: Ted Barrick on May 4 2021 5:44 PM
I would check your shift forks and double check the gear too.
Answer By: Willys Jeep Parts Tech on May 4 2021 11:14 AM
Questions: Is it possible to replace the old assembly with the new assembly without taking out the transmission and transfer case in as 1947 cj2a?
Question By: Howard Zorian on Dec 10 2020 2:55 AM
Yes, you just undo the bolts and replace.
Answer By: Willys Jeep Parts Tech on Dec 10 2020 5:30 AM
Questions: I have sent a question but don't know if it was answered? Never saw email. Does the top #94611 fit a 1957 CJ7? I don't see bolt holes for the #907107 boot?
Question By: David Duncan on Oct 28 2020 1:20 PM
Yes, this fits your vehicle. The boot goes to your floor board not the top shifter.
Answer By: Willys Jeep Parts Tech on Oct 28 2020 8:43 AM
Questions: So does this have the hole for a reverse light switch?
Question By: Jonathan Brown on Jul 30 2020 5:45 AM
This is not threaded for a reverse switch. Willys didnt use one.
Answer By: Willys Jeep Parts Tech on Jul 30 2020 5:52 AM
Questions: I have a 1966 CJ5 with the T86 transmission. It was recently rebuilt but keeps slipping out of first gear. I believe its the top end springs and balls that are worn but don't know. I realize parts for this are obsolete. Will this T-90 top fit the needs or do you have another idea
Question By: Robert Gidding on Apr 29 2020 6:40 AM
Email and we can help. It could be your poppet balls and springs.
Answer By: Willys Jeep Parts Tech on Apr 29 2020 5:44 AM
Questions: What Backup Reverse light switch would fit this shifter?? Threads appear to be 11/16-16.
Question By: Kenny on Jul 28 2019 5:21 PM
Sorry, i dont have a good listing for that item.
Answer By: Willys Jeep Parts Tech on Jul 29 2019 5:53 AM
Questions: Will this fit a T98A transmission?
Question By: Jayme Wilson on Jun 4 2019 1:40 AM
No, that is different but we can help. Please call and ask for Mike M.
Answer By: Willys Jeep Parts Tech on Jun 4 2019 5:36 AM
Questions: Does gasket come with shifter assy
Question By: james lee on May 20 2019 7:28 PM
That is separate part number: 642770
Answer By: Willys Jeep Parts Tech on May 20 2019 12:54 PM
Questions: I rebuilt my t90 transmission it was jumping out of 2nd gear replaced the gear and syncro put in new rebuild parts now it is coming out of second gear on occasion. I am wondering if the tower needs replacement or rebuilding. In the past I have solved the second gear problem with a rebuild I know sometimes jumping out of gear is the tower. any suggestions.
Question By: john carothers on Sep 26 2018 2:35 PM
I would check your shift forks for wear for sure. If youve already replaced 2nd speed gear its the next place to look. Also your poppets.
Answer By: Willys Jeep Parts Tech on Sep 26 2018 9:26 AM
Questions: Ok question. I have a old Willy’s 2 wheel drive the old resort pink one lol. It has a t90 3 speed colum shifter. What do I need to convert it to floor shifter?
Question By: Randy kirk on Jun 21 2018 8:24 PM
Please email and we can help you out. We've helped customers before on this.
Answer By: Willys Jeep Parts Tech on Jun 25 2018 12:50 PM
Sell your Transmission to someone who wants a column shift then buy another T90. I think you have what is called the T90J, very cool.
Answer By: Phil D'Asaro on Apr 25 2019 5:12 AM
Questions: The shift cane appears to be of equal diameter from tranny to shift knob, is that correct? It looks odd -- all 2A canes I've ever seen were tapered down going up the upper half of it.
Question By: George Mace on Mar 4 2018 2:14 AM
They make the new cane shafts heavy duty. They were originally tapered.
Answer By: Willys Jeep Parts Tech on Mar 5 2018 5:51 AM
Questions: Hi I have a 1967 cj5, currently it has a 3 speed trans and it is a floor shift but it is a side mount aftermarket shifter on it , the linkage hangs up and doesn't work at all I have to push linkage in by hand. I wanted to just change it to top mount shifter with your assembly but the trans doesn't have a top plate at all what should I do.
Question By: RYAN on Jan 13 2018 6:16 PM
We can probably help out. I need more information though on your transmission. Please call us toll free. Ask for Mike M.
Answer By: Willys Jeep Parts Tech on Jan 15 2018 10:07 AM
Questions: On my 55' T90A I've had leaks from the trans cane tower & back of the shift rails even when I fill only to below the transmi fill hole.. On your "TRANSMISSION TOP SHIFTER ASSEMBLY" is there an upgrade to resolve this? Do I see what looks like a vent, a fill plug & are those rear shift rail plugs? Thanks Jax
Question By: Jax on Mar 25 2017 2:24 AM
That is from a build up of pressure. I have had people drill a small vent hole in the freeze plug to prevent this.
Answer By: Willys Jeep Parts Tech on Mar 27 2017 5:53 AM
Questions: When I put shifter Assembly on it feels like it goes into two gears at once when I take it off I will shift fine with my fingers
Question By: Harry wallace on Feb 8 2017 2:58 AM
Please call us toll free. We can help you troubleshoot what is going on inside your T-90.
Answer By: Willys Jeep Parts Tech on Feb 8 2017 5:54 AM
Questions: I have a 1965 cj5 with a 134 4 cyl and a 3 speed on the column I would like to put a 4 speed on the floor or is the 3 speed the only one I can use on the floor and do you offer a transmission thanks scott
Question By: scott on Dec 17 2016 2:33 PM
Really the 3 speed T90 is what we offer in that situation.
Answer By: Willys Jeep Parts Tech on Dec 19 2016 5:37 AM
Questions: Do you sell the 2 silver plugs that cover the shift rail holes on the rear of shifter assembly?
Question By: John Accardi on Nov 2 2016 11:45 PM
642757 is the part number for the shift rail caps.
Answer By: WIllys Jeep Parts Tech on Nov 3 2016 5:56 AM
Questions: I have replaced the synchronizers, and second gear looks serviceable. But I'm not getting full gear engagment, could it be something fixed by replacing/rebuilding the tower?
Question By: Sam on May 28 2013 12:00 AM
I would check for wear on your poppet balls and springs as well as for wear on your shift forks in the tower.
Answer By: Willys Tech on May 29 2013 12:00 AM
Questions: what is the thread pattern on the stick for the shifter knob?
Question By: Colby on Apr 19 2013 12:00 AM
I think it is 3/8 but would have to confirm. They screw right on to the original cane shaft.
Answer By: Willys Tech on Apr 22 2013 12:00 AM
I recently purchased a new T-90 shifter knob from Kaiser Willys and the threads inside the knob are 5/16" fine thread.
Answer By: George Mace on Mar 5 2018 10:45 PM
Questions: My shifter assembly is leaking oil at the rails. Is this an indication of a problem? Will the shift rail caps fix the problem? do you sell those separately?
Question By: Aaron on Aug 17 2011 12:00 AM
Sounds like it may be overfilled but it shouldnt be a problem.
Answer By: Willys Tech on Aug 18 2011 12:00 AM
Questions: What are the two silver knobs on the assembly for? IS on of them a vent? The one I have doesn't have either knob but does have the plates attached on the end of the shifter rails to keep them from leaking.Does this assembly fix that leaking problem or do you have to put the plates back on?
Question By: Anonymous on Jun 13 2011 12:00 AM
Those are just free plugs for the shift rails. You wont have any problems with leaking on these.
Answer By: Willys Tech on Jun 13 2011 12:00 AM
Questions: I have done acomplete rebuild on a 48 Cj2a. (stock) what fun. My problem is the stock shift tower leaks and I need a solution. I have tried at least 4 different towers, same result. If I get your new top will it stop the problem. This is the only leak remaining on the old girl,any suggestions.
Question By: bill thorpe on Jan 1 1970 12:00 AM
Sounds like your fill level is too high. you may be overfilling the transmission.
Answer By: Willys Tech on May 31 2011 12:00 AM
Questions: i have a 1948 cj2a and im having problems getting it into 2nd and thrid gear .feels like shifter is locked up no granding. im thinking i should buy your top shifter assembly for the t90 what do you think thank you bob
Question By: bob on May 24 2011 12:00 AM
Its probably your syncronizer. Try part number: 640391
Answer By: Willys Tech on May 25 2011 12:00 AM
Questions: I replaced the top shifter on a T-90 transmission for a 1964 CJ-5 Willy Jeep. In first gear, the shifter stick is all the way to the dash and I would like to adjust it so the dash does not almost get hit every time when I start the Jeep moving. How do I adjust the shifter motion range farther back so when it shifters, the shifter stick is not hitting something?
Question By: Scott Hansen on May 11 2016 3:20 PM
Please call us toll free. We can help you troubleshoot
Answer By: Willys Tech on May 11 2016 9:49 AM