Thanks ,
I visited there site and now I know why it's such a tied fit .
They advice you to use a wax to act as lubricant that will ease the fitting .
They also state that the gap you should recon with acts as an sort of air vent , to prevent dirt and water being caught .
Like I stated earlier I have them on my Volvo p1800 , and after restauration ( it has a British manufactured body , sorry guys
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I thought it was a good solution . The total front body was totally gone , because water and sand collect es between fender and subframe , and that's proving to be an ideal rust-nest . Our Mercs have a similar construction so I think for us who don't live in California it's the thing to install ...
I also saw that they don't have them in stock right now .....takes 6 weeks .