Beachwood Canvas: the best canvas products available in my opinion. And the ONLY people to go to for seats unless you want to be feeling metal under your butt.
Army Jeep Parts: George Baxter knows what he is doing and his parts FIT RIGHT. If you want a correct spec radiator that will not overheat, go to him. If you want an amazing rebuilt transmission or transfer case, go to him. AJP carries electrical parts made by MV Spares in Australia which are all engineered to correct WW2 specifications. AJP also carries panels produced by Midwest Military. These are made in the USA to correct specifications unlike the MD Juan parts. George is amazingly knowledgeable and a perfectionist. Some folks want to save a few dollars and wrestle with the consequences. Save your time, buy from AJP.
Walck’s 4 Wheel Drive: I use Walcks for rebuilt starters, generators, and such items as brakes and brake parts. They cover WW2 and up. A family business they are wonderful to deal with and provide reputable quality. I cannot say enough about them.
D L Bensinger: On the east Coast if you need a gas tank, combat rims, handles etc.. go to Darryl.
Ron Fitzpatrick Jeep Parts: On the west coast Fitzpatrick is an amazing parts supplier. Also use him for rebuilt transmissions, transfer cases etc.. Ron has everything. Sheet metal is MD Juan as far as I remember though. Also, if you are not on the g503 forum then follow the link to his site and join it.
TM9 Ordnance: I have not tried them yet but fellow restorers who have say they are the best paint suppliers.
Brent Mullins Jeep Parts: Brent makes rivets for your frame restorations. They look like original rivets from the top but actually are a type of bolt which breaks off on the bottom after the torque spec is reached. I use these on all frame restoration.
In the end the best thing I can say is that it does cost money to restore a Jeep. Use the best parts and you will enjoy restoration, maintenance, and driving of your Jeep so much more.
Have fun!! -Merlin