Hi guys, a while ago i swapped out my OD a833 for a non OD one, i believe it's a 1967 year and noticed a huge difference in 4th gear rpm at 60 mph. With the OD gearbox at 60 the rpm was at 2200, where as now it's at 3000 rpm. Diff gears are 3.45, tires are 26.6 inch, engine is 360 for what it's worth.
Just want to ask you guys if in your experience, you think this is normal?
Thanks.
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