I spoke with Bilstein.
What they told me is some 2500 vans have the 12mm lower bolt, and some have the 14mm lower bolt. Seems sketchy to me that this would be accurate, but what do I know. I see no hint of a 14mm bolt in the parts diagrams for our van.
So, assuming all Westy's have the 12mm lower bolt (which may not be correct), there are no B6/HD shocks from Bilstein for our van as they have 14mm bushings for both the top and bottom. The B4, OE Bilstein, does have a 14mm upper and 12mm lower and would fit.
The Monroe "themanys" installed also have 14/12 bushings, so that is at least one other known van the same as mine.
Now I have to sell/return what I just bought, rather frustrating.
What they told me is some 2500 vans have the 12mm lower bolt, and some have the 14mm lower bolt. Seems sketchy to me that this would be accurate, but what do I know. I see no hint of a 14mm bolt in the parts diagrams for our van.
So, assuming all Westy's have the 12mm lower bolt (which may not be correct), there are no B6/HD shocks from Bilstein for our van as they have 14mm bushings for both the top and bottom. The B4, OE Bilstein, does have a 14mm upper and 12mm lower and would fit.
The Monroe "themanys" installed also have 14/12 bushings, so that is at least one other known van the same as mine.
Now I have to sell/return what I just bought, rather frustrating.