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V8 280 VP 4 cyl and 8cyl gear ratiobs

F

fishinray

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I have a 1976 280 with a V8 an

I have a 1976 280 with a V8 and had a bad intermidate housing. I 've picked up a nice working 1978 280 from a 4 cyl. Can I just put my upper gear box from my V8 on the 4 cyl unit? Is the lower prop ratio ok? any advice would be helpful.
 
"You can use the upper gear un

"You can use the upper gear unit from a V8 on a 4 cylinder unit. However, the lower gear units have different gear ratios, the V8 has 1.61:1 and the 4 cylinder has 2.15:1. If you want to replace the lower gear units, make sure you use the correct gearset for your engine."
 
I should use my original lower

I should use my original lower unit too. Can I take the guts out of old unit and put them in the 4cyl lower unit.
 
"I would just replace the whol

"I would just replace the whole lower unit. But if the original V8 lower unit is NG, then just move the gearset from the 8 cyl outdrive to the 4 cyl outdrive lower unit."
 
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