[dominick]

I have a 2000 Mariah Shabah Limited edition. with the Mercruiser 7.4 bravo 3
I need the lower drive shaft or can my old one be repair?

[ColoradoDiablo]

What is the prob with it dominick? Is it bent , broke , stripped , seal surface grooved , etc.
You can get one here new

[Motoxxx43]

Just double checking with you but drive shaft or prop shaft? The two kinda get interchanged I have noticed.
I spent quite a bit of time hunting for a prop shaft for my Bravo I. Ended up spending $300 on a installed but never used one that was taken off a Bravo I that was being built to the newer 1 1/4" prop shaft.

If it is in fact the prop shaft here are some options I found:
If your current one is bent it can be straightened but it is a pain in the butt...
If your seal surface is worn it can be fixed too...
Bravo 1 Extractor Bushing A

If you are considering something off Ebay and it is used make sure they have put it on V blocks and measured it to assure you it is straight...