| Transmission: T-98 vs. T-18 | ||
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Modifications Transmission T-98 & T-18 internal differences More T-98 & T-18 internal differences
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 When I bought the Jeep, it came with the T-98a transmission on the left as a spare. This transmission was a factory option behind the F134 for a time, and featured a unique input shaft and bearing retainer. The shaft sticks out about 7", measures 15/16" diameter and has 10 splines. The bearing retainer is stepped, with a Ford sized base diameter, and a T-90 sized outer diameter. It was originally used with an adapter plate to bolt up to the F134/L134 bellhousing with the use of an adapter. I could have used this input shaft with the pinto pressure plate and 8" Willys pressure plate that I was using with the current setup. I decided it would be better to use an 1 1/16" ford input shaft from the Ford T-18 on the right. This allowed me to use the 9" SVO clutch. I thought it was just a matter of swapping the input shafts. Not quite. |