3/8" or 7/16"

06-22-2004 | 10:15 PM

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From: Antelope, CA

Car: 89 IrocZ/17 LS 1LE

Engine: 383/LGX

Transmission: 400/TR-3160

Axle/Gears: 3.08/3.27

3/8" or 7/16"

on stock heads are the rocker studs 3/8" or 7/16"
I think its 3/8" but Im not sure

06-23-2004 | 08:26 AM

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From: St. Augustine, FL

Car: 89 GTA

Engine: 383

Transmission: 4L80E

Axle/Gears: 12 bolt-3.73

3/8