Cascade Crew

Quasi-Traction · Posted: Wed May 10, 2006 9:15 am Post subject: I'm a man and I can be wrong.

""When you make assumptions, you make an ass out of you and me"

So, I learned something today that I was rather delighted about with my 84' V6 (No, the Cylinder head didn't just magically repair itself)

I think I have a 3.42 rear.

I knew it didn't have posi, but always assumed the gear ratio for the 84 SC's with a 5 speed was a 3.08:1 and that Automatic 2.8's in 84 got 2.73's.

Apparently not.

According to the RPO sticker (which is orginal to the car and was removed from my old console by me and re-adhered to my new console) I have GU6 as my axle code, which should be a 3.42

This was further verified by TGO in there Tech Data Section saying that the Manual Trans LC1 V6 cars came from the factory with 3.42's.

Shrug

Twilightoptics · Posted: Wed May 10, 2006 9:22 am Post subject:

I thought most of em came with 3.42s? Bart's old car slinky was a 2.8 MPFI Auto with 3.42s

rjmcgee · The Hammer Joined: 08 Jan 2004 Posts: 2320

Yup, I had an 83 Bird with the 2.8 and it had a 3.42 rear. It died a horrible death a couple years ago. Of course the Bird went through hell for the couple weeks that I had it before parting it out. Did a little wheeling. Laughing

Xophertony · Posted: Wed May 10, 2006 11:09 am Post subject:

chris we have totally talked about this. the talest gears v6s got were 3.23:1 in the M5 MPFI cars.

aaron_sK · Posted: Wed May 10, 2006 11:51 am Post subject:

Uhh.... why not just spend 15 minutes of your life jacking up the back of the car and reading the codes?

Red91RSCamaro · Posted: Wed May 10, 2006 1:36 pm Post subject:

Dewey316 · Posted: Wed May 10, 2006 2:11 pm Post subject:

Wow, you are still around dude? Got another thirdgen yet?

Quasi-Traction · Posted: Wed May 10, 2006 2:13 pm Post subject:

Quasi-Traction · Posted: Wed May 10, 2006 2:15 pm Post subject:

Xophertony · Posted: Wed May 10, 2006 2:36 pm Post subject:

so when it's gears the "taller" of the two gear ratios: 3.42:1 and 3.23:1 wuld be 3.23:1 right? or did i mix that up?

Red91RSCamaro: a fellow hillsboronianite Razz

Quasi-Traction · Posted: Wed May 10, 2006 2:56 pm Post subject:

Taller gears: 2.73's
Shorter gears: 4.11's

Hope that clarified.

Xophertony · Posted: Wed May 10, 2006 3:25 pm Post subject:

oh, so yeah, 3.23s are the tallest gears in a 2.8. thanks.

QwkTrip · Posted: Wed May 10, 2006 4:17 pm Post subject:

My '89 V6 had 3.42 gears. In fact if anybody is looking for an axle it's for sale and it's cheap.

PonchoTA · Posted: Wed May 10, 2006 7:40 pm Post subject:

If you open the diff (you need to change the fluid anyway, right?!!) Laughing

spin the axle until the markings on the ring gear come around, the exact number of teeth of the set will be stamped right on the gear, leaving NO chance of error. Should be 41,12

hth

Red91RSCamaro · Posted: Thu May 11, 2006 7:49 am Post subject: