• Skip to main content
  • Skip to header right navigation
  • Skip to after header navigation
  • Skip to site footer
Jeepfan.com

Jeepfan.com

serving the Jeep community since 1997

  • Projects & Installs
  • Offroading & Events
  • Technical & Info
  • Readers Jeeps
  • Jeep Racing
  • Products
  • Ask
  • jeepfan.com 2022 4xe
  • jeepfan.com 2018 JL
  • jeepfan.com 2004 TJ Unlimited
  • jeepfan.com 1978 CJ-5
Home » Projects & Installs » T-18A Rebuild and Short Shaft Kit – Part 2

T-18A Rebuild and Short Shaft Kit – Part 2

We kick off the project by removing the top of the T-18A exposing all the guts of the beast. Removal of the stick shift is not necessary. Behind the workbench was a table where we could layout all the pieces.

Get personalized content recommendations and answers drawn from our website. Simply type your question or topic of interest, and our AI assistant will help you find relevant articles, tips, and insights. You can also have a natural conversation to explore topics in more depth.

Dcp_1547.jpg (9769 bytes)
Next we removed the rear shaft bolt and the output gears.


Next we removed the front snap ring and the front bearing using a break tool.

This is one area where two people come in handy. Removing the gear sets. We removed both at the same time pulling them in opposite directions while lifting them where they join together. Roller bearings from between both gear sets dropped all over.

Lower gears were removed by sliding the rectangular plate up out of the slots in the shafts and then driving the shafts out using a 1 inch dowel rod or a brass drift. The larger Countershaft is driven forward. The small reverse idler shaft shaft will clear internal parts when driven inward however it is possible that the small shaft is tapered on some models at the rear of the transmission and should be driven out (rearward) from the inside. We drove it inward towards the front without any issues but to be safe, you should drive it rearward.

Note: The T98 and the T90 are similar in design to the T18 but they have a tapered reverse idler shaft and must be drive out from the inside or you’ll damage the case.

Rear set of gears were disassembled to get to synchronizers. Don’t forget how it came apart. Also be aware of some spring loaded bearings that lock the gear set in place during shifting.

Dcp_1555.jpg (14621 bytes)

Dcp_1554.jpg (16134 bytes)

Dcp_1561.jpg (9899 bytes)

Everything was then cleaned using a combination of carburetor cleaner and Simple Green in a basin of hot water.

Dcp_1557.jpg (14433 bytes)

Dcp_1560.jpg (8718 bytes)

Cleaning and inspecting the parts. Everything looked pretty good. Gears were in good shape with very few chips in the leading edge of the 1st gear.

Continue to Part 3

Category: Projects & InstallsTag: CJ, drivetrain, how-to, rebuild

You’ll also enjoy these posts


check out these trending posts


Jeep Vehicles VIN Reference Guide

 14K+

How Electronic Start Stop ESS Works on the Jeep Wrangler JL

 6K+

The Wrangler 4xe Explained Simply-ish

 2K+

Understanding and Troubleshooting Jeep CJ Gauges and Senders

 4K+

Jeep CJ Exhaust – Headers and Mufflers

 1K+

Jeep Quadra-Trac 4wd System

 2K+

Receive exclusive recommendations directly from our website.

Sidebar


Jeep CJ 1972-1986 How to Build and Modify

Grab Your CopyJeep CJ 1972-1986 How to Build and Modify

jeepfan.com

  • Instagram
  • Facebook
  • Twitter
  • YouTube

© 2025 · jeepfan.com · Powered by Bizbudding

Privacy Manager

Explore

  • Projects & Installs
  • Technical & Info
  • Offroading & Events
  • Products
  • Racing
  • Readers Jeeps
  • Jeep News & Information jeepfan.com blog

About

  • Contact
  • Advertise
  • About
  • Terms of Use

Partners

  • Quadratec
  • Rough Country
  • TeraFlex
  • Maximus 3
  • 7S Garage
  • OK Auto