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superliger
05-09-2007, 04:20 AM
i have an 03 grand marquis unfortunately not a MM>.
anyhow ive noticed a vibration around 45-55 mph and come to find out my axl seal on the left side is leaking... also have a bent axl... will I have a problem with wheel offset or anything else if i swap in a MM rear?? what gearing is in the MM rear??
anyone from NJ know of any shops located in or around central jersey who will swap rears ?? i jsut moved here from NY and dont know of any shops... also anyone local have a rear for sale??? any help or info is greatly appreciated

MENINBLK
05-09-2007, 05:48 AM
You can buy the replacement kit from a dealer for the TSB Axle repair.
I don't remember the price. You can check with Ray.

RoyLPita
05-09-2007, 06:18 AM
Here is the part number: 3W1Z-4A109-AA .

offroadkarter
05-09-2007, 06:27 AM
I know of a shop that could possibly do it if you asked nicely. They installed alot of mods on my brothers explorer.


Where are you in NJ?

RF Overlord
05-09-2007, 09:15 AM
i have an 03 grand marquis...will I have a problem with wheel offset or anything else if i swap in a MM rear??IIRC, all '03+ Panthers should be interchangeable, but buying the axle TSB kit would probably be a lot easier and cheaper. It's around $320 depending on how much your dealer likes you. The kit includes new axles, axle bearings, seals, fluid, and friction modifier.
what gearing is in the MM rear?? 3.55 w/Trak-Loc (Ford's version of posi)

superliger
05-09-2007, 03:22 PM
Im in sayreville.. called a couple of junk yards and they want 800-900 beans AND my old rear!!! i got someone who will do the swap for 250 but im not paying a grand for a junker rear.... thats rediculous...

id like to get diff gears in mine since i have the 2.97's now :( any reccomondations??? 3.55 would be ideal and would it fit in my housing? (probably a dumb question)

cyclopsram
05-09-2007, 04:07 PM
I believe you have 2.73 to one in the Grand Marquis... if you are not off warranty, the repair should be free under the soft axle recall any way... If you go to the 3.55s or 4.10s you will have to recalibrate computer, too...

RF Overlord
05-10-2007, 12:47 PM
If you have the HPP option on your car, you have 3.27s...if not, then you have 2.73s.

If you change from the factory-supplied ratio, you WILL have to reflash the PCM to correct the speedo.

If you make a big change, say from 2.73 to 3.55, you will have to have the transmission shift schedule modified or you will upshift way too early all the time.

To answer your last question, yes 3.55s will fit and will give you a big boost in acceleration, but you will lose a fair amount of fuel economy on the highway.

Marauder.45
05-15-2007, 07:05 PM
The guy who set up my rear is in Hammonton NJ. Just down 206.

He can do rears with his eyes closed. Let me know if you want his number. Real reasonable, he won't rape you for it.

He can also hook you up with a handheld tuner to program your new ratio.