What's the wt difference between a short tailshaft and long tailshaft TH400?

Also, any idea what the difference in wt between their output shafts is? Just trying to calculate difference in rotational mass on this one.

What would be the wt difference between a stock 12 inch converter vs a Vigilante 9.5 inch unit? Probably the difference here would be fluid capacity.

 

not much on the trans on the TCs i'd guess 20-30 pounds. what differance does it really make? neither trans or TC are selected on weight, or at least weight alone.

 

Just wanted to get an idea on the differences to see how much I had potentially reduced overall vehicle wt. I changed from a long shaft TH400 to a short version, installed the Vigilante converter, and installed an alum driveshaft all at the same time.

 

wouldnt the benifit of weight loss from using a shorter tailshaft be offset by the weight gain in the rotational mass of the driveshaft?

i realize you went to a alum one, but say, if you were comapring a alum one to a alum one....