What Ratio Should I Change the Chevelle to?

[Dwn4BassAlan]

So I recently got my car back with a new clutch, happy day right? Wrong. That's the second clutch I've replaced, lasted almost exactly 1 year. Same with the first one. The guy says that it's mainly the suppperrr high rear that was never changed when they converted the car from automatic to manual..... so my posi still has 2.73:1 I believe, and it's already purring at freeway speeds, so that's my only concern really, (obviously along with gas mileage though). I don't often take the freeway in my car, maybe once or twice a month. But it's usually not a short distance, and I don't want to be at 5500 rpm doing 75 on the freeway either, because you have to consider my Muncie is only a 4-speed, with no over drive.

So he first told me 4.10's and I was liiikeeee "Yeah, no. I'm not trying to make a bugatti look slow off the line here."

So he told me to order the pinion I thought was best.

So my question is which ratio would probably suit me most adequately? I was looking mostly at 3.55 and 3.73 as the best compromise, anyone have suggestions as to which might be better? I drive a long way to/from school, but don't ever go over 50-60 mph at most. normally around 40-45 for the most part. I don't have an RPM tach though........so I can't really give you figures as to what I'm running currently. I know the formula, but I don't know (positively) my tire diameter or tranny gear ratios, so I can't calculate it accurately yet.

I can't thank you enough L-box. Seriously lol.

[Dwn4BassAlan]

And I figured 3.73 was bound to be the more popular answer. Seems to be more prevalent around classics. When I get my car tomorrow I'll calculate it out after I get the measurements.

[Jessica]

go with 3.55 ish for a compromise, 3.73 for a bit more snappyness. I think if you go to a 3.55 you will be amazed at the difference. You'll think you gained 100hp. Don't forget about the speedometer gear. You may have to switch out the gear in the tranny if you can't get one with the right amount of teeth.

[mothra]

4 spd w/no OD, i'd go with the 3.55. if you had OD or a 5th gear I'd go with the 3.73. this is just me.

[Broke_Audio_Addict]

Id go 3.55 since it's got no overdrive. Also since you have no tach I'd think about getting one. while it's not necessary if you know your car well the bigger gear will get your rpm's into the danger zone A lot quicker than you would think. no sense In not keeping an eye on it and possibly grenade your motor. You should also make sure your driveshaft is balanced properly or you could end up with issues since it will be spinning faster more often.

[CortezDTV]

I have 3.70s on my mustang

Love em, I would do 4.10s if I had a 6 speed over my 5 speed

[Awhitewookie]

I had 4.56 in my Cobra and loved it. Guess its just the driver

[boom50cal]

3.42's.... Just enough so your first gear is a little gruntier, but won't kill you when you have to drive it for long distances. A big thing to consider is, like Broke mentioned, is how your drivetrain in entirety will be affected... Personally, since I like passing power and cruising capability over sheer take off speed, I'd do the 3.42 or even a 3.31. But hell, you could do a 4.10 and put a gear vendors overdrive in there too...

[Dwn4BassAlan]

I had 4.56 in my Cobra and loved it. Guess its just the driver

Sorry I'm trying to get past 1/8 mile drag races lol kidding of course.

[Awhitewookie]

Haha I know man. At the time I only worked less than 1/2 mile from where I lived so I didn't have any distance drives. Could get around town fine and murder all the neons and cobalts