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Transmission Main Drive Input Shaft Gear (4-134)
Fits 46-71 Jeep & Willys with T-90 Transmission

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Transmission Main Drive Input Shaft Gear (4-134)
Fits 46-71 Jeep & Willys with T-90 Transmission

New Transmission Main Drive Gear (1 required per vehicle)

The gear has a tooth count of 30-18 which is from front to back and a spline count of 10.

Application:
T-90 Transmission with 4-134 engine

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

Item # Price
640428
$69.99

Availability: In stock

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Questions & Answers

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Questions: Do you have this part with 16 teeth ?
Question By: Bjarni Gestsson on Sep 20 2018 2:34 PM
Yes we do. The part number you're looking for is 643246. Thanks
Answer By: Willys Jeep Parts Tech on Sep 22 2018 6:33 AM
Questions: is this axle with 16 or 18 teeth?
Question By: Bjarni Gestsson on Sep 20 2018 10:39 AM
18 tooth
Answer By: Willys Jeep Parts Tech on Sep 20 2018 6:04 AM
Questions: I have a guy finishing a T-90, my original guy is back in jail. However, everything is together, but now the main input shaft won't spin. Everything spins on its own.until the output shaft is bolted back in. Even with the transmission in neutral. Any ideas what we did incorrectly?
Question By: Peer Lance Plaut on Jan 30 2018 12:42 AM
Sounds like you may have dropped a roller bearing. I would check that. Also when first assembled they are very tight and hard to turn over by hand due to the front seal.
Answer By: Willys Jeep Parts Tech on Jan 30 2018 5:41 AM
Questions: I'm looking for the input shaft that I 7 inches long and 15/16th do you have this one?
Question By: Chris Holloway on Feb 5 2017 12:52 AM
Please call us toll free so we can get more vehicle information and help you out.
Answer By: Willys Jeep Parts Tech on Feb 6 2017 5:51 AM
Questions: what is the overall lenght on this drive gear ?
Question By: Penn Leavitt on Mar 31 2013 12:00 AM
They are 9-1/16 like original.
Answer By: Willys Tech on Apr 1 2013 12:00 AM
Questions: My current one has 18 teeth, how many does this one have? (58 cj3b-f134)
Question By: John on Mar 10 2012 12:00 AM
This will be the proper one for all T90 transmissions.
Answer By: Willys Tech on Mar 12 2012 12:00 AM
Questions: mike,can the main drive gear (T90) (4-134) fit the MB jeep that i have? or better still, will the entire T90 transmission assembly fit the MB engine that I have? or does it require certain modifications to allow entire T90 asembly fit. the spline of the T90 fit? thanks
Question By: Anonymous on Feb 10 2012 12:00 AM
You have a T-84 transmission in that 41-45 MB. A T90 will fit but you will have to cut out your floor board alittle to accomodate the taller top shifter.
Answer By: Willys Tech on Feb 13 2012 12:00 AM
Questions: is this main drive gear for a t90a or a t90c or do you have it for both?
Question By: bill on Apr 3 2011 12:00 AM
T90A. Really just match to your motor.
Answer By: Willys Tech on Apr 4 2011 12:00 AM