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Technical => Drivetrain Tech => Topic started by: 88CougarGT on November 13, 2009, 11:59:33 AM

Title: 7.5" 3.73s pulled from??
Post by: 88CougarGT on November 13, 2009, 11:59:33 AM
Going to the JY.  Anyone know what had the 7.5" rear end and 3.73 rear gears?  Aerostars, Rangers...?

Thanks,
Dan
Title: 7.5" 3.73s pulled from??
Post by: Haystack on November 13, 2009, 02:04:51 PM
some areostars, turbo bmw motored mark7's.
Title: 7.5" 3.73s pulled from??
Post by: vinnietbird on November 13, 2009, 02:19:22 PM
Check some Ranger diff. tags while you're there.
Title: 7.5" 3.73s pulled from??
Post by: TurboCoupe50 on November 13, 2009, 06:42:00 PM
I believe most Aerostars have 3.73s... I have a long wheelbase, passenger Aerostar that has 4.10s...
Title: 7.5" 3.73s pulled from??
Post by: 88CougarGT on November 13, 2009, 11:17:26 PM
The aerostar i got my posi from (5sp w/ tow package)  had 3.53s but I didn't grab the pinion.  If i cant find a 373s i will just get the pinion and put the 3.53s in.  I'll let you know what I find.
Title: 7.5" 3.73s pulled from??
Post by: Haystack on November 13, 2009, 11:27:27 PM
I think there 3.45's in 7.5's...
Title: 7.5" 3.73s pulled from??
Post by: SLEEPER T-BIRD 87 on November 14, 2009, 11:39:36 AM
rangers,aerostars,early fox mustangs

going to have to crawl under them and read the tags
Title: 7.5" 3.73s pulled from??
Post by: 5.0 tbird on November 14, 2009, 10:26:19 PM
87-93 4 cyl Mustangs with the automatic.
Title: 7.5" 3.73s pulled from??
Post by: Dougy_Fresh on November 15, 2009, 01:11:05 AM
i have 3.73's in my 84 mustang gt. i have a set of 3.45's on the shelf out of an aerostar. last week in the junkyard, i looked at a ranger axle that said 3.72...yes, 72, not 73....i know it makes no difference, but its what it had
Title: 7.5" 3.73s pulled from??
Post by: blackcougar71 on November 26, 2009, 06:52:47 PM
aerostar van with 7.5 non traction lock will have either 3:73 or 4:10 gears
mustang 2.3 liter non traction lock 7.5 rear end will have 3:73 gears
most rangers have the 3:45 gears
Title: 7.5" 3.73s pulled from??
Post by: Ductape91 on November 26, 2009, 08:46:00 PM
what is this "posi" you people speak of?
why would you find chevrolet rear end parts on fords :hick:

like said way above 87-93 automatic 2.3 mustangs will have the 3:73 rears, the manuals have 3:55 standard.
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