Manual Transmission Parts for Jeep CJ6
Six Genuine Transmission Variants for Every CJ6 Production Year (1955–1975)
Which Manual Transmission Is in Your Jeep CJ6?
Over the Jeep CJ6's twenty-year production run from 1955 to 1975, six different Warner manual transmissions were installed, often depending on the exact model year and engine configuration. The rugged 3-speed T90 was the standard transmission for much of the production run, before lighter variants like the T86 and later the T14 and T15 appeared starting in the mid-1960s. In parallel, Jeep used the 4-speed T98 and its successor, the T18, for heavier-duty applications. Since many wear parts differ between transmission types – even though some small parts like mainshaft nuts or shifter knobs are shared – correctly identifying the installed transmission before ordering parts is essential. Checking the tag on the transmission case or matching it against your vehicle's model year reliably helps with that.
- Warner T86 (1966–1967): Light-duty 3-speed transmission from the mid CJ6 production years – T86 manual transmission parts.
- Warner T90 (1955–1971): The durable standard 3-speed transmission for most of the production run – T90 manual transmission parts.
- Warner T98 (1955–1975): Rugged 4-speed transmission for heavier-duty use – T98 manual transmission parts.
- Warner T14 (1955–1975): Lighter-duty 3-speed transmission from the later model years – T14 manual transmission parts.
- Warner T15 (1955–1975): 3-speed transmission with its own distinct gear set – T15 manual transmission parts.
- Warner T18 (1955–1975): 4-speed successor to the T98 for demanding applications – T18 manual transmission parts.
American Manufacturing Quality Across All CJ6 Transmission Variants.
Across all six transmission types, most parts come from Crown Automotive, one of the best-known names in the American spare parts market for classic Jeep and Willys vehicles. For specific gears and synchronizing hubs in the T18, Omix rounds out the range, also a US manufacturer. All reproductions are built to OEM-quality standards and reflect proven American engineering.
Your Partner for Every Transmission Variant in the Jeep CJ6.
Not sure which transmission is installed in your CJ6, or need help with compatibility questions between the types? We're happy to advise you on correct identification as well as installation order and torque specs during assembly. Shipping is as fast as possible, straight from our warehouse.