chavalo_nm1

What else would I need to put 3.73 gears on my car?
I only have the ring andpinion .

Oh yea ill be getting a t lock too. soon.
gear oil? what kind? I kinda need to know asap. thanks guys.

Denny Carlton

Wait untill you get everything, and then put everything in at once.
One price! It should run you about $700.00

Denny Carlton

Redline gear oil or Royal purple!

pperin

yeah man do it all at once since the labor is the main cost. Get a good gear guy to do it.

4.0 Stang

labor will be the same for the gears and lsd or just the gears, my local shop quoted me 475 for all the labor and oil

4LITER6

Anybody that will be doing the installation that specializes in differentials............should have gear oil, but you will need this: http://cgi.ebay.com/ebaymotors/FORD-...spagenameZWD1V

Edit = link...

Not necessarily this brand name, but you will need a shim kit, if you have alot of miles on your diff now, you should replace the bearings as well...................anyway look around.............Ford Racing I am sure has a kit as well. fordracingparts.com

Cheers!!

mustangman02232

you need a motive bering kit

id also get a girdle especially with a tlok, if your a 5 speed esp, i would run a detroit true trac

scroll down
http://www.3.8mustang.com/forum/showthread.php?t=183112
that was a 4500 rpm cutch drop with DRs on 212 rw/ft/lbs on a tlok WITH a girdle

ilduce321

Since I'm looking to do this soon as well, is a bearing kit absolutely necessary, or is it just something that would be nice to include?

Mark_Henry

For all you Mustang owners who have never worked on a rear-end before but want to swap their gears please, please, please resist the urge! Pay a professional to do it right. I've seen a car loose a wheel and axle because the c-clip wasn't installed correctly, LSDs chew themselves apart because they wern't shimmed properly, and even whole rearends come apart because they were driven dry.

While this isn't rocket science and there are plenty of pictorials on the net there's also alot of detail involved that's often lacking. You need to know what gets lock-tighted vs. antiseized, which seals have to be replaced, how to tell a good girdle from a POS and so on. The cost of installation is small compared to what you can loose from an improper installation.

mark h

mustangman02232

in reality, no it is not absolutley nessisary, but your just plain stupid if you dont

its like running a premium tune but using 87 octane w/boosteron it[8D]