hey everyone! im dropping a tko 600 in my 91 and i saw you need to "lengthen the d/s" .675 in. how the f do you do this????? i cant figure it out!!! i know you need a specific yoke of 31 sline and a specific bellhousing, but the lengthening thing is really getting to me. if you have any secrets lemme know. i really want this baby in there and im close to getting it i just need this last bit of info. also if im missing anything that is important or not to this project lemme know that as well, this way im fully informed.
thanks billion!!

 

Either a spacer, my least favourite option.
Weld in a complete new tube. Just reusing your ends (yokes). Not cost effective. Much labour, material and you can't sell your old driveshaft.
Buy a new high performance driveshaft.