Shovelhead1340
New member
i have a 1983 330HP (454cid) merc in my 270 searay .
it has the TR drive,,
i was wondering if a 1976 2 TR upper housing is the same as my 1983 TR upper housing?
gear housing part numbers are the same ..
is there any other differences besides the gear ratios?
TIA!
have a chance to buy a 2 TR upper at a pretty good price
it has the TR drive,,
i was wondering if a 1976 2 TR upper housing is the same as my 1983 TR upper housing?
gear housing part numbers are the same ..
is there any other differences besides the gear ratios?
TIA!
have a chance to buy a 2 TR upper at a pretty good price

