im lloking at some older donzis and dont like the alpha drives as they have an aversion to the sticks and hosrepower so was wondering whats involed in swapping it out for a bravo. what can i expect to pay for a coplete used bravo drive and transum assm. thx ratman

Drilling 2 extra holes for the transom plate,which you can use as a template.The hole is the same for bravo.

Rat Dude, not 100% but if memory serves from some tech readings that only one extra hole in the transom has to be drilled and the bravo bolts right up. Again, I am not real techy! Wrink

There might be a hight difference.
I think I read somewhere that the bravo is longer than the alpha.

Easiest of all drive changes, just drill the two top holes as Crack said.I did it to a 26 Hustler with no problems at all. It was worth it just toget rid of the shift interrupt switch.
TOM

I know this is a very old thread, but I have the opportunity to purchase two complete bravo setups. I have researched this quite a bit, but still have not found a definitive answer. Hoping someone can shed some light. I have a 32' Pachanga and built 600HP roller 454's. It has alpha gen 1's and I know they are not gonna like it. I know the alpha gen 2 are extremely close (if not the same) as a bravo. Do I just need 2 extra holes going from a gen 1 to bravo or is there more to it? All I see is reference to "alpha" but never specifies gen 1 or gen 2. Added bonus to this - I can run one bravo in reverse to get counter rotating props :-)

Thank you in advance!

You'll also need to install raw water pumps that are belt driven for the bravo. The thermostat housing changes too I believe.

I went from Alpha gen 1 to bravo drive.
Drill 2 bottom bolt holes 1/2" I believe
Bravo shift plate.
MAY need new shift cable, older style transom end on Alphas
Raw water pump with bracket.
3 grove pulley set. Crank/recirculating water pump.
New v-belts
New raw water hoses (transom to raw water pump and raw pump to oil cooler).
That should about do it..
I think this is close to the list.
Check here on OSO with sickstinger (Mike Mellow) for the parts you need)

The outer plates for bravo and gen 2 have the same part number. Same holes.

What was the life span of an Alpha spinning on a 600hp roller engine in a 'changa?
Alpha's (let alone the coupler) should explode getting on plane as the Pachanga wasn't the lightest of boats... similar to a warhorse Apace with 1000's and a B1 taped to the transom