Fox T-Bird/Cougar Forums

Technical => Drivetrain Tech => Topic started by: Xtremitie on July 08, 2008, 09:24:23 PM

Title: Rear Gears
Post by: Xtremitie on July 08, 2008, 09:24:23 PM
My door tag says 'M' for AX Code. What is it?
I'm thinking its a 2.73
Its an 8.8 case, Wheres a good place to buy some 3.27 or 3.55s on the cheap?
Title: Rear Gears
Post by: ZondaC12 on July 08, 2008, 10:03:35 PM
M is indeed 2.73s, thats what I got too :D  :mad: :toilet: lol
 
Plenty of used gears on ebay, but you *do* run the risk of them howling or clunking and/or wearing out and blowing the rear pretty quick if at any point in their lifetime they were set up incorrectly. For what it's worth, someone that is worth their salt and really knows rear ends can look a set over and probably tell you if they'll be okay or not.
Title: Rear Gears
Post by: Xtremitie on July 08, 2008, 11:33:23 PM
I've never changed rear gears before, just the entire axle back in my old Cougar, I know its not that hard though. I'm ready to just pay new price if they'll ship tomorrow, I just don't want to spend a lot on gears. I can reuse my traction-lok unit right? I just need the ring and pinion gear? Any suggestions on what to get? or what speedo gear to make up for it? Its an AOD with a B&M Shift kit.
Title: Rear Gears
Post by: superpinto on July 09, 2008, 10:17:02 PM
your tracloc should work fine.wat gears are you going with?
Title: Rear Gears
Post by: Xtremitie on July 10, 2008, 12:11:56 AM
I was thinkin 3.73s or 3.55s
Title: Rear Gears
Post by: thunderjet302 on July 10, 2008, 01:43:02 PM
AOD street: 3.73
AOD mostly track: 4.10

DO NOT GOLOWER THAN 3.73 GEARS OR YOU WILL BE DISSAPOINTED. ;)
Title: Rear Gears
Post by: Clayton on July 12, 2008, 11:21:09 PM
Quote from: thunderjet302;226762


DO NOT GOLOWER THAN 3.73 GEARS OR YOU WILL BE DISSAPOINTED. ;)


3.55's are fine with me. because i have a 5speed.
Title: Rear Gears
Post by: superpinto on July 13, 2008, 01:21:58 AM
people i talked to when i had my tbird they told me 3.73s or 4.10s i had a 306,aod,7.5 as my drivetrain.
Title: Rear Gears
Post by: vinnietbird on July 13, 2008, 01:22:27 AM
X2 because I'm going to install my 5 speed soon.
Title: Rear Gears
Post by: Xtremitie on July 26, 2008, 02:56:32 PM
3.73s are in!
Tires will have to upgrade priority to next on the list however, The car won't hook when I really get on it. As well on the other hand, I didn't install them myself, I let my boss's friend do it who lifts up big trucks and does gears on those all the time. His method.... a little stray from what the book says.  I've gotta get the car up and double check for fluid leaks I know that much for sure, Sucks trying to fill it with two flowmaster40s there and I spilled a ton and ruined my new shirt.  But this 'Brian' fellow loved to use a hammer, be it small or a sledge. In just about every place of the installation.  They're quiet, only a slight humming howl type sound with light throttle. Barely noticeble at all. But wow the car really whips now.
Title: Rear Gears
Post by: Xtremitie on July 26, 2008, 02:59:49 PM
Oh, I just reread the thread.
Speedo Gear, Which color is it? Cuz holy hell, I'm doing 50 through town and the speedo says 85.

3.73s on an AOD
Title: Rear Gears
Post by: ZondaC12 on July 26, 2008, 03:24:15 PM
It's grey. http://www.mustangsunlimited.com/itemdy00.asp?T1=DFM17271J+01    This is the best you can do. It's for 4.10's but its close for the 3.73s. Speedo might be off like 2 mph but thats it.