Matt S iroc

i want to put 373 gears in my 89 camaro.what would be the pros and cons of doing so?

84z .....

pros are , more fun to drive hard and u will get out of the hole quicker and still be "ok" at hwy speed

tsram

3.73's are a fine choice if you want to quicker acceleration and still be able to drive comfortably on the highway. Go for it.

Matt S iroc

cool that helps me out.and what does the install kit consist of?

tsram

The kit will include bearings, races, seals, and shims you need to set-up the gears. Have you done a gear install before?

Saabster

iTrader: (2)

What other mods do you have? Are you currently a 2.73? I'd consider a 3.2(3?) or a 3.42/3.45 before I went for the full 3.73.

fireturd350

iTrader: (8)

Are you running TPI, TBI, or Carb? Do you have a 10 bolt or 9 bolt?

Matt S iroc

i gotta 10 bolt and ive had a iroc with the 342 or 345 gears i dont remember exactly but i remember that i wanted a better gear then.its just stock right now with 85000 miles but the first thing im doing is the 3 inch exhaust and a better air intake.ive never done gears but i have a few friends who are going to help with that.i found some gm brand gears 373s for $100 im thinking of buying

Matt S iroc

and yeah the gears im guessing are 273s i havent drove the car yet im in the process of buying it from a friend that just has it sitting in his driveway he bought for his grandson but he doesnt want it because of the gas mileage.1989 rs camaro

Matt S iroc

and yeah its also tbi

84redta

iTrader: (34)

I may have missed reading it, but is it auto or stick? The only real loss is if it's automatic, then highway speed might not get as best MPG as you can get with say 3.23 or 3.42s, but if it's stick, you should be able to utilize the gears nicely and still maintain maybe a MPG less than average.

Zerocyde

What does that mean?

Zerocyde

You, by-chance, have a link to a good kit to do this?

fireturd350

iTrader: (8)

Check with Randy's Ring and Pinion. They have a website. They sell a master overall kit with all the bearings, seals, and etc.

tsram

I second Randy's Ring and Pinion. Have used them several times in the past with good service.
"Get out of the hole" means to launch from a dead stop and accelerate quickly. Even faster than you would with 3.23's or 3.42's.

Matt S iroc

yep i know that much lol,what does randys ring and pinion install and all that?

fireturd350

iTrader: (8)

http://www.ringpinion.com/ Check them out. Tech Support over the phone is decent too.

five7kid

iTrader: (14)

Most likely you have an "open" (non-posi) rear end now. With 3.73's, you'll have even worse traction than you have now because the passenger side tire will just sit there and spin when you get on it hard.

Differential carriers come in two different "series" - 2-series for 3.08 and lower number ratios, and 3-series for 3.23 and higher number ratio series. 3.73 gears come in both 2- and 3-series styles, so if you just install the gears on your carrier, you will need 2-series 3.73 gears.

If you go ahead and get a posi carrier, then it makes sense to just get a 3-series carrier and 3-series gears.

You can also get a Power Trax conversion unit that installs in place of your open carrier's spider gears. But, a Power Trax costs about the same as a posi carrier.

The cost will be about the same either way (unless you just leave your differential open). If you have a shop install the gears, they can install them on your carrier for the same labor as installing them on a new posi carrier. They might, however, charge you more to install the gears on your carrier and then install the Power Trax (it is simple enough to install that you could do that yourself after they install the gears).

Matt S iroc

i just talked to my neibor who has a 84 camaro and a 85 trans am.he told me that he scraped a gta and that he still has the rearend,so im planning on buying that.i kinda figured that the rs has just a limited slip,instead of the limited slip posse that the irocs have.im guessing that the gta has the same with the 342 gears or whatever as the iroc does.now would that be a better rearend to put the 373s in as far as having the limited slip posse?im sure that he will sell me the rearend cheap like maybe even under $100. and i may even go as far as to putting the rearend in for now untill i have the gears and money to get them installed.