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Author Topic:   lug pattern
pa racer
Dirt Roller

Total posts: 13
posted January 19, 2001 12:16 PM
we have 9" with a 41/2 bolt pattern. how do you drill to get 43/4 chevy?are all holes filled and then redrilled? or drill ford holes larger? thanks.

MOD RACER#93
Dirt Freak

Total posts: 251
posted January 19, 2001 07:02 PM
Well I would not recommend to do this on a street car, but since its a dirt stock car here's how I changed mine. I took torch and elongated the existing holes. When to hardware store, bought grade 8 bolts 1/2inch thread the length i needed. Put the axle in a vise took 4 3/4 (5on5)car rim and half a** centered it on the axle center put lug nuts on and tightend moved around till it was really close to being perfectly centered. Then went to back side and tacked all the bolts. then took down and got after it with welding machine. Leave the bolts tight on the rim while welding to keep them strait. Like I said, I wouldnt recomend doing this too a street driver but for dirt stock racing it will get the job done. Hope this helps....
p.s. You could also probably use the bigger studs but I have never really seen the need for the 5/8 suds. Have been hit in the wheel hard enough to bend the frame one time and wheel did not break off. Everything behind it was tore up though...lol

pa racer
Dirt Roller

Total posts: 13
posted January 19, 2001 09:07 PM
thanks for the info.

CUSTOMPERFORMANCE
Dirt Freak

Total posts: 213
posted January 19, 2001 10:42 PM
the SAFEST WAY is to weld up the 4 1/2 pattern and grind smooth then redrill to 4 3/4 you can buy templates with the different bolt patterns to properly locate the bolt pattern

awkwardjeff
Dirt Freak

Total posts: 218
posted January 20, 2001 08:20 AM
Just another thought, I know a guy that bought a wheel that had both bolt patterns..
He bolted the wheel on the axle then drilled the other bolt pattern, this will make the flange thin between the stud holes, when he was done installing the new studs he took the old ones out and welded the old holes shut to add the strength back into the flange................Jeff

PS. this keeps the wheel centered on the axle to keep run out to nothing

pa racer
Dirt Roller

Total posts: 13
posted January 20, 2001 01:32 PM
THANKS AGAIN EVERY ONE-we are trying to make big changes this season.i tell everyone i talk to, the nicest people -go dirt racin'
SHADETREE RACING
W.PA.

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