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May 18, 2008 21:45:46 GMT
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Just having a few thoughts about upgrading brakes and wheels on one of the projects and I'm looking to move from 4 stud to 5 stud(but sticking to 114.3 PCD) to reduce other cost within the project. What are the pitfalls of doing this modification that I might need to be alert to with regards to maintaining the structural integrity of the components etc.
Cheers
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2014 - Audi A6 Avant 3.0Tdi Quattro
1958 - Chevrolet Apache Panel Truck
1959 - Plymouth Custom Suburban
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1970 - Cortina Mk2 Estate
2007 - Fiat Ducato LWB 120Multijet
2014 - Honda Civic 2.2 CTDi ES
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Redrilling Hubs/Discsslater
@slater
Club Retro Rides Member 78
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Umm well the first thing is to check that theres attulay metal where you need to drill the holes. Alot of the time there isnt!  |
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kee
Posted a lot
Posts: 4,990
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May 19, 2008 11:19:36 GMT
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it's impossible to redrill a 4 stud hub to 5 stud, unless you utilise one of the existing holes, in which case the pcd would have to stay the same.
gonna have to have new hubs made or somehow put the hubs off the 5 stud car onto yours
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May 19, 2008 11:57:26 GMT
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"impossible" is a very broad statement. Unlikely is a better one... ;D I'm sure I've seen it done 4 to 5 lug. Many hubs just don't have enough metal in them to pull it off anyway, you end up having to drill one new hole so close to an existing hole that you risk the stud mounting failing.
Like Kee says most times you either swap hubs over or find someone whiocan supply you with a blank. On RWD cars you will also have the ballache of having to replace the halfshafts to change PCD.
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1937 Austin Street Rod - 1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1976 Rover V8 - 1994 Ford Fiesta
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mattt
Part of things
Posts: 63
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May 19, 2008 14:02:56 GMT
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 can be done, its what I'm gonna do on my cressida. I know technically it shouldn't be as strong but plenty of people do it without problems. Guess it just depends how you view cut springs, stretched tyres, welded diffs and all the other baby killing car mods? |
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Last Edit: May 19, 2008 14:03:33 GMT by mattt
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May 19, 2008 15:09:37 GMT
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hubs are round in part because that way they are in ballance as they spin. I have no idea if that is going to cause a problem in use but it kinda looks really wrong to me.
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1937 Austin Street Rod - 1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1976 Rover V8 - 1994 Ford Fiesta
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mattt
Part of things
Posts: 63
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May 19, 2008 15:13:14 GMT
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yeah, like I said, it looks wrong but is probably only noticeable if you did some science-like test. plus its close to the hub so shouldn't matter as much?
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This spacer/adapter is interesting:  It's got a reversible bolt hole! |
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Seth
South East
MorrisOxford TriumphMirald HillmanMinx BorgwardIsabellaCombi
Posts: 15,521
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That's to fit something six stud too - so something quite heavy duty!
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Follow your dreams or you might as well be a vegetable. |
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I have 4 stud drums redrilled to 5 stud, they are the same pcd though, 4x120 to 5x120 i think, whatever porsche pcd is.
If you sticking with the same pcd you should be ok. Have a look inside and see if there are strengthening ribs in the drum.
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Nathan
Club Retro Rides Member
Posts: 5,627
Club RR Member Number: 1
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Redrilling Hubs/DiscsNathan
@bgtmidget7476
Club Retro Rides Member 1
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May 21, 2008 10:13:09 GMT
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Would it not be worth welding up the old stud holes?
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kee
Posted a lot
Posts: 4,990
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May 21, 2008 11:13:57 GMT
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extra holes shouldnt make too much difference to strength, unles sof course you have hundreds of em ;D circles are the strongest shape, thats why people spaceframe cars with tube rather than box  |
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May 21, 2008 14:04:38 GMT
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That's to fit something six stud too - so something quite heavy duty! Hiace van.  |
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