That’s a lot of work you guys have to go through and make these parts fit. I hate hearing it, but it’s not uncommon anymore.
You’d think these plastic parts would be pretty simple, but they don’t seem to be.
I agree .. i;d chalkit up as a defect and try another ,,,,,,,,being a dorman product , dennis carpenter?? {actually haven't had one in my hand]] World Pac no label but is slighly different then the dorman one,, Fit and function can be hit or miss ,, ,, My reserviour was from a customers 93 f250, the black top was discolored and one of the mounting tabs was broken,, , the dorman replacment worked out fine in this case ,, and his became mine ,, both just installed pump bottomed out and no issues ,, If I recall in the past maybe aftermarket pumps would be slighly larger in the outside diameter and not install in the reservior as an ford replacment would just work and no fiddling around but this was probably 20+ yeasrs ago...