Redrilling wheel sutd holes in hubs/rotors

[wagonist]

I've bought a 2nd axle for my car trailer.
It has a slightly larger knurl for the wheel studs where they press into the hub/rotor (they seem to be one piece, I think they're off a Volvo).

Is it a simple job to enlarge the original holes slightly so I can have matching wheel studs all round?
The studs need to be an interference fit.

Can a brake shop do this?

[Joshstix]

Since you'll need to buy new studs anyway I'd start by pulling out one of the ones that is in their and measuring it up to see if there is a replacement from Nice http://www.niceproducts.com.au/catal...heel/wheel.php that has the correct knurl and thread size.

Otherwise yeah it's simple enough to redrill them but it would be best to do it with a jig of some kind to ensure the stud locations are correct.

[airfireman1]

if you are just enlarging the original holes you can do this yourself. with a decent drill. I have done this when i replaced the studs for longer ones and the new ones were about 1/2 a millimeter thicker in the splined area where they grab onto the axle. Just make sure they are a tight fit at the knurled or spline part of the stud. hammer them in and the jobs done.
cheers

[wagonist]

Yeah, I'm just enlarging the existing holes (I think I'll reword that in the original post).
It's more a case of getting common parts as it'd be really awkward having different studs on 2 different axles on the same trailer.
And I seriously doubt I'm going to wear out the brake rotor in the next while, it's still only a trailer.

airfireman1: how did you ensure that the new larger hole was centred & square to the original?

[airfireman1]

I have a drill press, but realy if you just go up 1 drill size at a time and hold the drill as verticle as possible it will pretty much self centre. I had no problems at all.
cheers

[woggin]

thats what i thought about doing with my ma61 hubs, just taking them to a shop and getting them to re-do 5x114.3 and then get some studs, seemed simple and easy!!!

[CrUZida]

thats what i thought about doing with my ma61 hubs, just taking them to a shop and getting them to re-do 5x114.3 and then get some studs, seemed simple and easy!!!

Have a look at the back of the hub and you'll see why thats not possible.

Start saving for MS65 hubs.

[wagonist]

Also, redrilling from 4 stud to 5 can be difficult as it leaves some of the studs close to vacant holes.
I just want to enlarge the existing 5 holes to fit a stud with a larger knurl in.