Here's the basic procedure....best to call up Just Differentials directly at
 1-866-349-6801 and have Carl or Jeremy send the product directly to me. I do
 recommend either NITRO or US GEAR. Their master install kits come with KOYO 
 bearings which is very good.

       Then remove the 3rd and clean off the excess grease/caked-on grime(the
 cleaner the outside the better and I appreciate the effort)and package up the
 3rd. Here's some ideas.... Tote Method  A certified check or money order can be
 taped to the underside of the lid to cover labor plus return shipping.

 Labor is generally 250 per 3rd. Labor might be slightly more for an ARB type install. 

     A word about E-lockers that are sent in the mail...best to remove the e-motors
as that is a very expensive item and they don't package very well with that
harness dangling everywhere. The truck 8" e-locker is easy to remove with just
one 12mm bolt. See this...8" e-locker removal.  The e-locker motor comes off of the
massive 9.5" Landcruiser FJ80 rear 3rds easy also....2 or 3 small bolts of the service
cover and 4 bolts that hold the motor on(they are on there tight so use a 12mm socket) 
and the pieces come right off.
     

Here's my address:
             Ken Francisco
             114 W. Ivanhoe Street
             Chandler, AZ 85225

Here's a sampling of what the typical 75 pound tote sent via Fedex ground to my 
zip 85225 although beware as some Fedex outlets, especially in small towns, are
not authorized outlets and costs will run about twice as much as shown below. I 
have access a 24 hour Kinkos(copy center) that has a Fedex outlet inside that makes
it easy for me.
             AZ  Tucson           85749  $35  1day
             CA  Strawberry       95375  $45  3days
             WA  Colville         99114  $60  3days
             UT  Eureka           84628  $45  3days
             NM  Dexter           88230  $45  3days
             CO  Sterling         80751  $52  3days
             TX  Lone Oak         75453  $52  3days
             IL  Tampico          61283  $60  4days
             TN  Hoodo            37018  $69  4days
             FL  Key West         33040  $76  5days
             SC  Stoney Hill      29127  $69  4days
             PA  Venus            16364  $76  4days
             CT  Mechanicsville   06277  $76  5days
             ME  Easton           04740  $74  5days
             Fedex Shipping Page
A word about insuring the tote...in the case of Fedex, if it is insured for 500 
or more then a signature will be required and it could be difficult for me to be 
there to receive it as I have a day job. If the 3rd is burrito wrapped in cardboard
and plenty of cardboard panels are placed in the tote then nothing will happen.
Insurance is optional and is just not needed if the contents are secured correctly 
and the address is readable.  

Other places to get master install kits and ring/pinions.....
            EastCoastGearSupply
            SOR 
            PORC
            Marlin Crawler
            All-Pro Off-road