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They're all basically the same with the exception of the final drive ratio, and the clutch actuation system. The only difference there being cable/hydraulic type.

 

In 99? I think, the bell housing bolt pattern changed, but all they did was add a few extra holes.

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The '98 OB is a Push-style clutch (affects the clutch/flywheel/pressure-plate type) and uses a hydraulic actuation. I 'think' all EJ25/2.5 used this type, since it was on my '98 Forester and used on a '97 Legacy GT that I know of. I know the '96 OB w/the 2.2 and 5-speed was Cable actuated, FWIW.

 

The FD ratio should be 4.11 on the OB.

 

I've read that this version/generation of 5-speed is strong enough to handle 300HP; I know mine was still good for the brief period my Forester was close to 250HP.

Td

Edited by wtdash
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