mercruiser info

[gatorkiller]

looking for info on an outdrive given to me, it has no reverse in lower unit, it uses a velvet drive model 71c trans. it has an 20 inch wheel and is massive. Im looking for a model number if any one knows. its is not on unit. i did find serial number on inside mounting plate -looks like 2020647. tks

[marshmat]

Hmm.... can you post any photos of the thing?

[gatorkiller]

ok, its a tr drive i found out that much. any one know where i can find info on this drive.