I own a auto repair shop and I'm wanting to replace a prop shaft in a bravo 1 lower unit thinking about doing the xr up grade any advise would be appreciated took it apart doesn't look to be that difficult can find any info on the net about tork specs or setting thank you for any help Mark

A mercury mercruiser #28 service manuel is pretty handy and there is another book Seloc mercruiser stern drive those two should have all the torque specs, there are like a haynes or chilton manuel look on ebay can probably be picked up at a decent price

You will need a few tools that are merc specific, the only one you really NEED is the backlash tool IMO, but it is nice to have some of the others.. a really long and skinny puller is a must if you are redoing the shims to set backlash.

Just dig in and figure what special tools you do and dont need.

Can download manual here free.
http://forums.iboats.com/showthread....39#post3084839