muncie 4speed with 3.73 rearend???
#1
muncie 4speed with 3.73 rearend???
whats up guys i have a 76 camaro with a 327 bored out, big cam, heads, rolller rockers and all that other good stuff haha. i have a muncie 4 speed on it right now and its great. my question is what would you all think about putting a posi 3.73 rearend instead of the stock 2.73 rearend? would it be worth $200? im not gonna be screaming at 4500 rpms going only 40mph am i? has anyone tried this setup? how big of a difference is this gonna be?
thanks alot guys
kinder
thanks alot guys
kinder
#2
Well, according to this calculator site that I used, with a 3.73 rearend, and 4th gear in a muncie 4 speed, at 3500 RPM you would be around 70 mph. and about 2000 rpm at 40 mph.
I too was looking at options for a rearend. i now have a 2.41 rear with a turbo 400. and I do about 35 mph at 1500 RPM. haha. If only it wasnt dead off the line.
I found that a 3.42 rear with a 700r4 would be better off the line than a 4.10 on a turbo 400 and have better mileage (overdrive gear) than my current setup.
I too was looking at options for a rearend. i now have a 2.41 rear with a turbo 400. and I do about 35 mph at 1500 RPM. haha. If only it wasnt dead off the line.
I found that a 3.42 rear with a 700r4 would be better off the line than a 4.10 on a turbo 400 and have better mileage (overdrive gear) than my current setup.
#3
I would think the 3.73 is just right. That 327 probably won't have a lot of low end torque. The gears will help with that. Not that it really matters what tranny you have there all 1 to 1 in high gear. Unless we're talkin something with od. I like my BW T10 and will also be running a 3.73, although it is what came with the car and I don't plan on changing it until I put some miles on it. That way I will have a feel for the way the motor pulls and what kind of r's its spinning when I cruise. I do think 3.73 is right for that motor though.
#5
Well, according to this calculator site that I used, with a 3.73 rearend, and 4th gear in a muncie 4 speed, at 3500 RPM you would be around 70 mph. and about 2000 rpm at 40 mph.
I too was looking at options for a rearend. i now have a 2.41 rear with a turbo 400. and I do about 35 mph at 1500 RPM. haha. If only it wasnt dead off the line.
I found that a 3.42 rear with a 700r4 would be better off the line than a 4.10 on a turbo 400 and have better mileage (overdrive gear) than my current setup.
I too was looking at options for a rearend. i now have a 2.41 rear with a turbo 400. and I do about 35 mph at 1500 RPM. haha. If only it wasnt dead off the line.
I found that a 3.42 rear with a 700r4 would be better off the line than a 4.10 on a turbo 400 and have better mileage (overdrive gear) than my current setup.
#6
here's a popular site people use:
http://www.thirdgen.org/calculations
http://www.thirdgen.org/calculations
Last edited by jason7504; 05-19-2010 at 05:15 PM.
#7
#8
The 3:73's will be a good around town gear ratio, and if you're not doing tons of highway cruising they'll be fine occasionally on the open freeways. I wouldn't want them if even half my driving was freeways, as the engine will be working at those higher RPM's too much for my liking.
The price is great at $200. A real bargain for a 3:73 posi.
The price is great at $200. A real bargain for a 3:73 posi.