steel wheel bore

Hello everyone
im new to this site so bare with me please .what i need to know is can i bore the center of my steel mustang wheels to fit my british ford classic car, the stud pattern is the same 4.1/2" on both sets of wheels but the center of the mustang wheels are 61mm and i need them to be 71mm to fit the rear axel .my wheels are studcentric so center bore is not critical .can i bore them and will it be safe.
i hope someone can help cheers

Welcome to Hotrodders. This is the Introduction forum so you will have a better chance of getting the answer to your question if you will post it over in the General Rodding Tech forum.

hi HH
thanks for your reply which part is the general bit im going round and round lol
cheers memphis

Its listed on the main Bulletin Board page with all of the other forums.

moving this there...............

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I'll offer my "seat-of-the-pants" answer, not being an engineer. I would think you'd be better off to machine the axle stub down to fit the wheel center. My reasoning is that the wheel center probably has a flange pressed into it at the time of manufacture. If you machine that flange off, you're removing some of the structural integrity of the wheel and it may be more prone to cracking from stress.

61mm to 71 mm is a difference of 10 mm. A mm is .039 so you will need to remove .390 of metal. That is .195 PER SIDE On a aluminum wheel, that should be no problem but on a stamped steel wheel ALL of the raised lip would be gone and the edge would be in the flat area of the wheel. The edge would be close the wheel lug holes. NOT GOOD ... in my humble opinion.

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Hello guys
thanks for your replys to my question .ive checked the rear axel shaft and the center measures around 76mm tapers down to 61 mm so i guess if i machine that down to 61 mm i figure the shaft would be weak ?at the centre of the flange? and if i bore the wheel id be left with 12mm of steel between center bore edge and bolt hole is this enough ? the front end is discs and the new wheels fit ok without any mods to them ,the car aint no high powered thing at the mo it still all standard it only as a 1.7 four pot in it with 3 speed .i dont know if you guys in usa would have seen a car like mine its a 1962 ford consul (looks like a small version 55 chevy sort of ) with silly 165/70/13" 4.1/2 wide wheels . (bathtub rollin on asprins) the new wheels are 14"x6 steel so i could keep the original look with hubcaps and trim rings and wider whitewall tyres just for a better look and to fill that big gap . im thinking of dropping a 8 pot in it next year .ive added a pic just to give you an idea how small the wheels look .( the cars been painted since this pic was taken ). i hope the pic loads . thanks again memphis