Cascade Crew

91camaro_rs · Posted: Thu Oct 04, 2012 3:59 pm Post subject: 9bolt questions

so my friend sold me a 9bolt and said it had 3.73 gears, and it ends up its a 3.23....so i wasnt very happy about that. so i have a 3.08 posi drum rear end now, is it worth the trouble to swap to the disc 3.23 9bolt even though i wanted 3.73's and will a 3.23 even make a difference??

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Are 3.23 posi.?

91camaro_rs · Posted: Thu Oct 04, 2012 6:10 pm Post subject:

Rear end i have now is a 10 bolt 3.08 drum posi. The one i just bought is a 3.23 9 bolt disc posi with staggered iron calipers . Is it worth the swap or should i wait for 3.73s

Alphius · Posted: Thu Oct 04, 2012 6:18 pm Post subject:

If it's a 9-bolt then it's a 3.27. Still a decent upgrade I think. 3.27 is a great driver gear. 3.73 is a little high, especially with a 700R4 IMHO.

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Worth swap then.funner gears AMD disc

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

But if you don't want to swap, I'd be interested in taking it off your hands

Twilightoptics · Posted: Thu Oct 04, 2012 6:29 pm Post subject:

3.73 is perfect for stock trans ratios in these cars.

3.23/3.27 is no slouch. 3.08 is terrible.

I'd definitely swap it. It's stronger, better, and has disc brakes.

Only takes an hour!

91camaro_rs · Posted: Thu Oct 04, 2012 6:59 pm Post subject:

Ok ill keep it and swap it. So now here are more questions. Which ebrake cables do i need and which brake lines do i need

Also what is the website for new speedo gears i needed to change it when i did the 3.23 peg leg to 3.08 posi so Im gonna need another for going to 3.27

Twilightoptics · Posted: Thu Oct 04, 2012 7:03 pm Post subject:

You shouldn't have to change brake lines. The lines native to the brakes/rear have a single T connection. Soft line from Chassis to Tee should be the same for you.

E-Brake cables again are brake specific.

91camaro_rs · Posted: Thu Oct 04, 2012 7:15 pm Post subject:

There are no brake lines from callers to the tee. It didn't come with em. and i have no idea what vehicle to use when i look up parts for it. I have no clue what got this rear end

Twilightoptics · Posted: Thu Oct 04, 2012 7:17 pm Post subject:

WTF? Who sells a whole rear with brakes, but no brake lines?

You have to fabricate the brake hard lines then. Yours wont work, but you should be able to use the soft line tee.

91camaro_rs · Posted: Thu Oct 04, 2012 7:22 pm Post subject:

Well that's great....good thing i work at oreillys now and can get discounts. I guess i need some long lengths of brake line and a tube bender

aaron_sK · Posted: Thu Oct 04, 2012 7:23 pm Post subject:

Twilightoptics · Posted: Thu Oct 04, 2012 7:24 pm Post subject:

Al Hasse · Posted: Thu Oct 04, 2012 7:30 pm Post subject:

91camaro_rs · Posted: Thu Oct 04, 2012 7:36 pm Post subject:

I just need to know what car its from so i can lookup brake rotors pads and brake cables

aaron_sK · Posted: Thu Oct 04, 2012 7:44 pm Post subject:

Al Hasse · Posted: Thu Oct 04, 2012 7:54 pm Post subject:

If you can't find your flex lines from the calipers to the hard lines, they can be fabricated. I had a full set of three lines for my axle made at Belfair Hose, made them u while I waited - they're out by the Bremerton Airport.

Twilightoptics · Posted: Thu Oct 04, 2012 8:37 pm Post subject:

IIRC on my stock 10 bolt one of the caliper lines was hard lined.

aaron_sK · Posted: Thu Oct 04, 2012 8:43 pm Post subject:

They may have done it that way on the ten as well. Last ten I had with disks went to the scrap yard where it belongs. Razz

All I know is one side of my 9-bolt disk lines is soft with a junction block and a banjo fitting and the other is hardline right to the caliper.

The tee'd line coming from the chassis also changed threads over the years, so watch out for that.