I have a 1991 W250 non-intercooled and I found that there is a bearing in the vacuum pump housing. I wouldn't have known this if the bearing hadn't failed and wrecked my timing gears, vacuum pump housing, power steering pump, and front cover. The worst part about this is that Dodge doesn't make that housing anymore and that's what I need the most. Until I find one my truck is sitting in the shed and I'm driving a Ford. Please help me find parts.
Jake
Jake