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06-06-2007 #1
Starting The Transformation
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- Oct 2004
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- Frisco, TX
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5.5 to 4.5 diameter bolt pattern?
In laymans terms can someone explain what is involved in switching from a 5.5 bolt pattern in a truck 9" rear end to the passenger 4.5 diameter bolt pattern? Thanks
Bob
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06-06-2007 #2
Registered User
- Join Date
- Nov 2006
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- 456
The axles will have to be redrilled on a mill with an indexing head to get them accurate. This is very improtant because if the holes are not accurate then you will have an extreme vibration. You cacn send them to Moser Engineering and they will drill them for you.
'69 RS/SS396 pro street/427/4spd/9"
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06-06-2007 #3
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- May 2005
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- Fontana, CA
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- 4,960
Also make sure the brakes will clear the larger diameter ends. Especially if they are hub centric.
Nick R.
69 Camaro - 383, 700R4, 12 bolt 3.55, Hotchkis, Bilstein, Global West, Morris Classic
08 HHR SS - Still Stock for now
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06-06-2007 #4
Starting The Transformation
- Join Date
- Oct 2004
- Location
- Frisco, TX
- Posts
- 194
Ok, thanks. That makes since.
Bob
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