Rocket , If the original panel fenders are in any way saveable I think it would be less work to go with the original fenders rather than try to make the pickup fenders fit. I don't know for sure but the pickup fenders may be a little different shape. I just went thru rust repair on the rear fenders and fender wells on my 49 sub. I had looked at pickup fenders and decided to stay with the original sub fenders. Glad I did. Hopefully someone who has tried this will jump in and give you an answer. Weeds