Updated!
FORUM INFO LINKS
1) Engine
--G-Engines
http://www.rubicon-trail.com/G-Class/engines.html
A) Engine Issues
B) Engine Swaps
--Turbo Diesel (617A) thread
http://www.clubgwagen.com/forum/viewtopic.php?f=18&t=736
--606A in a W460
http://www.gwoa.co.uk/index.php?name=Forums&file=viewtopic&p=65840#65840
C) Engine Improvements
2) Transmission/Drivetrain
--G-Transmissions
http://www.4x4abc.com/G-Class/transmissions/getriebe.html
--Wheel bearings
http://www.4x4abc.com/G-Class/bearing.html
--Cause of vibrations
http://www.4x4abc.com/G-Class/vibrations.html
3) Suspension
Using Nissan Patrol springs to replace G springs when in a bind(non pun intended) outside the USA
http://pointedthree.com/disc/forums/showthread.php?tid=16795&posts=7&start=1
4) Braking
5) Wheels/Tires
--G-Rims
http://www.rubicon-trail.com/G-Class/wheels/index.html
--How to fit 35" tires
http://www.4x4abc.com/G/35.html
6) Exterior
W460 historical color project
http://www.pointedthree.com/disc/forums/showthread.php?tid=16796&posts=1&start=1
7) Interior
8) Electrical/Lighting
9) Miscellaneous
--DIY tech articles
http://www.clubgwagen.com/gtech.php?sid=listAll&pageTitle=Article%20Index&display=all&sort=techChassis&order=DESC
--G-specific info and model overview
http://www.g4rce.net/engl/models.html
--G-specific info including workshop/owners manuals
http://www.rubicon-trail.com/G-Class/available.html
--Vehicle import regulations
http://www.nhtsa.gov/cars/rules/import/
PARTS/SERVICE PROVIDER LINKS
--Gwagen Preserve
http://gwagenpreserve.com/
--G-Wagen Accessories
http://www.g-wagenaccessories.com/
--FourByFour Club
http://www.fourbyfourclub.com/
--Eurotruck Importers
http://www.eurotruck-importers.com/
--Europa/G.Wagen USA
http://www.gwagen.com/flash.html
--G-Classics
http://g-classics.com/G-Classics/En/Home.html
--G-Wagon Technology GmbH
http://www.tschiewagon.com/
--RCV's custom CV Joints
https://www.rcvperformance.com/store/catalog/index.php?cPath=32&osCsid=bd719000110ddc33181c285c1591b499
--ORC
http://www.orc.de
--Offroad World
http://offroad-world.com/portal/
--Desert Service
http://desert-service.com/start.html
--Hutchinson bead-lock wheels
http://www.rockmonsterwheels.com/new492.htm