Favorite gear ratio for street car

My favorite street gears are 4.30's with a T56 and a .63 overdrive 6th gear. 2,200 @ 65 mph.

But realistically, with a standard 1:1 final gear transmission I wouldn't go higher than 3.55's with the freeway driving I do. Even when I was running 3.55's with a 26" tall tire it was a lot. Even with a 4 speed and no converter losses. But the freeways here don't make 65mph easy, I figure my freeway speed at 70mph at least. Nobody does 65 and gets out of the slow lane.

Wvbuzzmaster said

I’ve only owned the car two months and put 25 miles on it. Highway use is low maybe 15% of total driving, but longest highway trip would be about 30 miles. With 4.10s it did good but I the car started with a lot of problems... been chasing the non mechanic repairs out if it. So far I could have started with a better car for what I am spending to save this one. I just installed new Espo 6 leaf +2 springs since the old ones were wrapped badly from not me. So as far as hooking up im good with a nice feeling launch, if that makes sense... i ran the math and 4.10s at 65 is 3300 rpm, 3.91 is 3100 rpm, snd 3.73 is 2900 rpm, not big changes but whatever. I like how the lower gear ratios feel, just wondered if going to 3.91 was smart... not a racecar, but want it to feel like it can run high 11 or low 12 quarter mile, but nice street car manners.

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You're not accounting for converter slippage, 65mph @3,300 with your set up is 0 converter loss.

It just depends on the driving you do, if 30 minutes is the farthest you'll ever drive it and that's highway and not freeway you can make the 4.10's work. But you're not gonna wanna drive it for an hour on the freeway anywhere. If you have a freeway commute you'll want higher gears. I ran 2.76 gears in my Challenger forever before switching to 3.23's. It wasn't fast off the line, but I was daily driving it and it worked great. And it would still do a peg leg burnout with it's stock 318 and the hockey puck 245/60/15's that were on it.