alpha one gear ratio

[cpt ron jc]

i have a 1990 4.3 mercrusier alpha one i was checking out sei i see they have different gear ratios which one will match i see on sei chart it has 184/181 i think its 181 whats the difference.

 

[Bifflefan]

Re: alpha one gear ratio

i have a 1990 4.3 mercrusier alpha one i was checking out sei i see they have different gear ratios which one will match i see on sei chart it has 184/181 i think its 181 whats the difference.

1.84:1 is a 184 and 1.81:1 is a 181.
The difference is 3 points in ratio.

 

[cpt ron jc]

Re: alpha one gear ratio

i just spoke with sei service my drive ratio is 1.84,their 1.81 replaces my 1.84 no dif,they were very helpful,thanks for the input