Tremec TKO transmission

I don't like the overdrive gear being driven thru the clustergear. the final gear should be straight thru like the old doug nash / richmond 5 speed and standard 4 gear transmissions. for a time I had a a833 overdrive in my car with the 513 rear gears, so the engine revs were lower but the tranny noise and vibes were higher. put the straight a833 back in. why is most folks afraid of revving the engine a little, I built my 340 to rev