Driveshaft length

dustya_383 said

Does anyone have exact measurements from u joint to u joint?? I hear shaft from a 904 tranny will work but not sure wat rear end it mates to. Don't all rear ends have a different pinion lengths??? I seen someone had measurement posted on the exact length bit can not find the post

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There is no "exact" measurement anymore since over the years engine, tranny and rear end mounting could have changed slightly and if they add up to 1/2" shorter or longer then that's to much.
So, do as the guys say, position car on all 4 tires, slide slip yoke into tranny till bottomed, pull out 1", measure from tranny u joint centerline to rear end u joint center line and that's the number your drive shaft assembled should be.