Willys Group Index 17 Transmission
With this Jeep my plans were mainly as a work Jeep and possibly for use as an old school rock crawler. Here is where my biggest changes from standard 3B began. Years earlier I scored a 1956 (first year) T98-A in pristine condition.
You can read all about it here…..
Sorry looks like all the pics are gone….
It was removed from a 1956 cj-5 along with all related special parts. It is “THE” grandfather of all rock crawling transmissions. The very first and remains to date as one of very best.
Here’s a look of the custom tunnel cover.
I find this transmissions gearing to be well ….very impressive.
I might add this shifts every bit as smooth as a T90. That said you must be at a DEAD stop to engage the first/ reverse sliding gear.
Willys Group Index 18 Transfer case
Standard in 1953 was the 1-1/8” intermediate D18 with 2.43 ratio. But I feel the 1-1/4” intermediate D18 with 2.46 ratio to be a notable improvement. I certainly considered installing 3.15 Tera low gears but I wanted to stay with the original quality Dana gears if it performed as required.
It currently has a crawl ratio of 85/1 which can be lowered to 108/1 via the 3.15 gear set if I need to slow it further. So far I am very impressed and content as it is at 2.46.
Willys Group Index 19 Propeller Shafts
Short rear and longer propeller shafts as taken from the donor CJ-5. New greasable Spicer universal joints.
The rear is the shortest it can possibly be without limiting the standard suspension droop. If I was to droop any further the “U” joints would begin to bind. In fact I had to opt for late type companion flange yokes to get enough articulation at the rear joint. Shown here are the early and the late type companion flange yokes for comparison.