You can purchase replacement hinge pin and bushing kits from Napa, O'Reilly, Etc. Part numbers are: Dorman 38422 NAPA 675-1594 They are about $5.99 per pin, (2) required per door.
Then you have to install as listed below on digitalrevo.
There is a hinge kit available from dealers- my understanding is that it's pretty expensive, and replaces the complete hinge, so it requires welding a new hinge to the door. My door was rusted out at the bottom anyway, so I bought a complete replacement from a salvage shop.
Here's a guide to replace the door pins and bushings. http://www.digitalrevo.com/Jeep/doorpins.html
Digitalrevo is not an active website as of 12/24/07
Door pin/bushing replacement guide: http://www.digitalrevo.com/jeep/doorpins.html
How much it will cost to replace the front brake pads on a Jeep Grand Cherokee depends on which brakes you choose and whether you putting them on yourself. You should expect to pay between 100.00 and 300.00 dollars.
The 2009 Jeep Grand-Cherokee has 59.1 in. of front shoulder room.
The 2007 Jeep Grand-Cherokee has 57.1 in. of front hip room.
The 2002 Jeep Grand-Cherokee has 39.5 in. of front head room.
The 2006 Jeep Grand-Cherokee has 41.7 in. of front leg room.
The 2004 Jeep Grand-Cherokee has 58.9 in. of front shoulder room.
The 2003 Jeep Grand-Cherokee has 58.9 in. of front shoulder room.
The 2002 Jeep Grand-Cherokee has 58.9 in. of front shoulder room.
The 2013 Jeep Grand-Cherokee has 39.9 in. of front head room.
The 2009 Jeep Grand-Cherokee has 41.7 in. of front leg room.
The 2011 Jeep Grand-Cherokee has 57.0 in. of front hip room.