The head light = ground and most of the vans front grounds are behind the fuse panel. Remove = the lower 2 screws and drop the fuse panel down to gain access. It is a = pretty small wire and ground set up to carry all the head light current imho. However = if you increase the size of the ground you will be pushing more current = through the already stressed light switch, ignition switch, and dimmer switch. = Carry some spares in your glove box.

If one does a = complete rewire of the head lights from the battery to ground via relays = controlled by the above circuit the head lamps instantly become adequate, even on = late vans. After a proper running engine, headlight relays should = be near the top of any to do list. Now if I could just get my wasser boxers all = running well.