I have a 84 330 Mercuriser with a TRS drive and Tranny. Since the tranny is inside the transom are drive showers needed or helpful

Thanks Rob

With a 330, use the $100 that a drive shower would cost and use it for regular drive maintenence. The TRS really doesn't need it with that hp.
Gary

Boy you guys are fast with the replies.

Thanks.

How often should I maintenence it? And what all should I do. Just fluid change?

Rob

Change the lube at leasts once each year. At the end of the season if it's cold there.
Take the drive off and lube the U joint/spline yearly.
Lube all the grease fittings on the gimbal several times a year.
Gary

Unless you are getting a chaulky buildup on the upper part of the drive signaling you are heating it up a bit then i wouldnt worry about drive showers.
On my old TRS setup i switched to RedLine shockproof heavy oil and never had a problem of any kind......even had less of that little metal dust that you find on the magnet when changing oil at the end of the season!

Thanks Guys.

No chalky build up that I can remember.

I wouldn`t think there would be any benefit to installing a drive shower on a TRS because the TRS has a pump in it and the drive oil is constantly circulating from the lower unti, immersed in the cool water, to the upper gear housing.