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Agree with 3.89.. But i never really saw the advantage to the 4.22.. 1st gear in the alpine is so low anyway that shorter than 3.89 final drive is not needed. I drove my SII with non OD 3.89 for 10 years without OD.. It would happily spin alomg on the freeway at 62mph.. But was around 3700rpm.. It was monotonous... With the OD it was so much nicer... And as i said before once i fitted OD and kept the 3.89.. It was noticeably better on the freeway over the 4..22 OD car.. And not noticeably worse in accelerationSince it keeps coming up, just a reminder that roughly the first 12,000 non-OD Series V's came with 4.22's. The rest of the non-OD V's came with 3.89. I have two Series V's - one with each ratio. The 4.22 makes for much easier acceleration around town and is fine on the highway up to around 60 mph. Above that, the extra rpm's get buzzy and I start reflexively reaching for a 5th gear that isn't there. If you drive it on freeways trips a lot, 3.89's are the way to go, with or without OD.
I'm curious what makes you feel you need replacement gears?Anyone know where I can get a 4.22 ring gear & pinion?
Agree with 3.89.. But i never really saw the advantage to the 4.22.. 1st gear in the alpine is so low anyway that shorter than 3.89 final drive is not needed. I drove my SII with non OD 3.89 for 10 years without OD.. It would happily spin alomg on the freeway at 62mph.. But was around 3700rpm.. It was monotonous... With the OD it was so much nicer... And as i said before once i fitted OD and kept the 3.89.. It was noticeably better on the freeway over the 4..22 OD car.. And not noticeably worse in acceleration
I don't recall where / when / who, but a ride in a non-O.D. S-V with a 3.70:1 rear axle gearset was eye opening. 60 MPH @ about 3,400 RPM and 70 MPH @ about 4,000 RPM with factory size tires. As good as the 3.70:1 rear axle gear was with the non-O.D. transmission, I think it would be a bit too much gear for a stock 1725 with an O.D. transmission.
Not hend teeth... But in real world.. I think its a nett loss .. The cars are better with 3.89 OD or not.Thanks for the input. I am going to leave the 3.89 in. It seems that 4.22 ring & pinion are hen's teeth anyway.