#1  
Old 01-15-2019, 08:24 PM
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kk68 kk68 is offline
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Originally Posted by gto4evr View Post

anyone with a correct 68 (still running 8 bolt cover) with a fan clutch and stock shroud that can show a pic or take a measurement of where the fan's sitting for me?

Thanks,
Dennis
Meant to respond to this awhile back. Took the attached pic from mine and measured the visible fan clutch shaft between pulley and fan at 1.5 inches.
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Don't rush me - it's only year 20 of the 3 year restoration!

68 GTO convertible
YS M40, A/C, PS, PB-disc, Posi-T, PW, P-seat, AM-FM stereo 8-track,
P-ant, P-trunk lid, Tilt-S, Rally gauges, Hideaways
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  #2  
Old 01-17-2019, 05:55 PM
gto4evr gto4evr is offline
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Originally Posted by kk68 View Post
Meant to respond to this awhile back. Took the attached pic from mine and measured the visible fan clutch shaft between pulley and fan at 1.5 inches.
(thanks for the heads up Carl, been awhile since I've been on the forum )

KK, thanks for the measurement, I'll check it out when I'm over at his house next week to see where we ended up on this.

as to bolts vs studs....I've never come across an original that had bolts holding the clutch to the WP, always been studs in my experience. Fine thread going into the pump (5/16-24) and course thread for the nuts holding the clutch to the studs (5/16-18)

most of the repop kits out there have the wrong lengths on the threaded sections as well so you have to watch for that.

  #3  
Old 01-19-2019, 09:39 AM
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68ragtop 68ragtop is offline
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Originally Posted by kk68 View Post
Meant to respond to this awhile back. Took the attached pic from mine and measured the visible fan clutch shaft between pulley and fan at 1.5 inches.
Which clutch is that? Thats one of the longest ones I have seen! I'll be that tucks the blades into he shroud decently.

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68 GTO 4-spd Convertible
78 S/E Trans am L78, WS6 Auto
78 S/E Trans am W72, WS6 Auto
79 10th aniv W72 Trans am
80 Indy pace car Trans am
89 Trans am GTA
  #4  
Old 07-07-2026, 12:23 PM
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73ta 73ta is offline
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Originally Posted by kk68 View Post
Meant to respond to this awhile back. Took the attached pic from mine and measured the visible fan clutch shaft between pulley and fan at 1.5 inches.
Your belts are riding at different heights on your pulley making them try to spin it at different speeds. I went thru this on my 73 TA. Had to get a wider belt so they ride at the same height.

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