thinking about a 203/300 doubler in my cj-7. all behind a 999 auto. anyone wanna take a guess on the min wheelbase for this setup? thanks

the 203 and 300 adapter is 8.75" long. SO figure that into your calculations.

My YJ has a 100.5" wheelbase. I run the 2.5L. I just moved my motor forward 4" and will be running the ax15/203/flipped 300 From bellhousing to output on the 300 was @44". This will leave me with a 21" rear d-shaft.

Hope this helps.