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mikel521

I have a 1971 521 and I want to change my 6 lug to a 4 lug

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I have a 1971 521 and it has a 6 lug pattern. I just found some awesome rims that I want to put on. I dont want to use a spacer/ adapter. Can anyone please help? 

 

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Let your mind overrule your heart. Know what will fit your 521 and stick with it. Look for love withing your own species.

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Okay, a little more helpful.

 

Your 6 lug is 139.7mm (5.5") pcd, while most 4 lug are 100mm or 114.3 (4.5"). That means (a) you won't be using any of the original stud holes, (b) the hub is not conducive to redrilling since the back is not flat (only machined flat where the original stud heads land, and (c) the diameter of the bearings/hub is probably not conducive to the smaller 4.5" pcd.

Stud-pattern-PCD.png

Edited by thisismatt
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Another thing to consider is the offset of the wheels. Cars and trucks don't always have the same fitment criteria. 

 

I assume the wheels are from a car with 4 lugs. 

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 Will they clear a 10" brake drum????

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