Time to fix what I broke.

[bad64chevelle]

Well the time has come for me to rebuild the rear in the camaro. My biggest dilemma right now is to decide between 3:73's and 4:10's. The car is an A4 and will be possibly getting a stall converter someday (If i keep the car) I dont really care about gas mileage and mostly want out of the hole performance. the car will MAYBE see some track time but not much. I need some input here. What RPM will I cruise at around 80 mph with either gear. The car has 3:23s now. Thanks
Jon

[The Fixer]

Assuming a 26" tall tire, 80 mph will probably be just over 2500 rpm. My old '87 SS had 3.73s with a 200-4R (slightly better OD gear than the 4L60E) and that's near what I ran.

[79CamaroDiva]

my camaro has 4:10s, I cruise 75 mph at 3500 with a TH400 trans. Not a very good cruiser, I would love to have a 700 trans.. OD would kick butt

[bad64chevelle]

yeah i have 4:10's in the chevelle, and turn alot of RPMs. on the way back from Hershey i was turning about 4500 for 20 minutes or so...dont know how fast that is cause i dont have a speedo but that was a LOUD ride home!

[Tru2Chevy]

LittleG, with a similar OD gear in his 5 speed turns approx. 3000 @ 80 w/4.10s.

- Justin

[Mike]

hmm i cruise down the highway at 1900 at 80mph. with 3.73's





oh wait.....thats 6th gear lol :lol:

[j0n]

hmm i cruise down the highway at 1900 at 80mph. Â*with 3.73's





oh wait.....thats 6th gear lol Â*:lol:

wtf!??
mine does the same...with 3.42s

[j0n]

and jon...

with 4.10s:

3000rpms at 80
102mph at 5500rpms in third(1:1) gear! :shock:
you'll definately run out of gear at the track

with 3.73's:

2750rmps at 80
113mph at 5500rpms in third(1:1) gear

personally i think your happiest gears will be(if you get that 9") 3.90s:

2900rpms at 80
108mph in third(1:1) gear

hope this helps!

[Fasterthanyou]

Depends on the horsepower level and tire height. The faster you go the lower the gear ratio you need so as not to over rev the motor. Example; with a 26" tall tire and 100mph trap speeds 3.73's would be perfect for the motor if redline was in the low 5000's. Trap at 120mph (nitrous) and you'll either be using overdrive, a taller tire, or chucking rods through the block!

[j0n]

forgot to mention the above info was for 245/50/16 tires

[bad64chevelle]

Thanks guys, I decided to go with the 3:73's. I will be ordering my crap tomorrow. Gonna watch all my money that was supposed to be for the nova go out the window for the camaro...oh well I guess it will be for the best :roll: I guess the 10 second passes will have to wait. Later!

** Ill get some pics of the destruction once i get the rear out and ripped apart!**

Jon

[bad64chevelle]

ok well brakes, rear components, and some other goodies are on their way. Hopefully in a week or two the stuff will all be here (Brakes on tuesday) and then i can get cracking on this. Ill have the rear out, taken apart, cleaned, and painted so it can all go in and on the car once i get the stuff. Thanks for the help, Ill keep you updated on whats going on. Later!

Jon