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Old 09-02-2005, 12:02 AM   #1
70short/step
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crank pulley

On my Brothers Blazer, the crank pulley is 2 piece. The alt/water pump crank belt is flush against the dampner. Then there is a cast pulley that bolts to it and sit about 3 inches from the dampner that the power steering pump uses.
Is this stock? It all looks original, but no telling what has been done to it since it was new. It is a 4X4 70 blazer V8 short water pump. Hope you can see what I am describing in the pic.
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Old 09-02-2005, 12:18 AM   #2
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I am currently dealing with pulley issues and I have not seen that one but I have not looked at Blazers. The crank pulley is probably the equivilent to my 4-groove pulley plus I have a 3-groove WP pulley. Does the power steering pulley have a flat or concave back side? The flat back is a BB pulley and the concave back is a SB pulley. I am guessing this is a non-AC truck.
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Old 09-02-2005, 12:40 AM   #3
Fred T
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Same setup as was on my 69 sbc when I got it.
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Old 09-02-2005, 01:37 AM   #4
gonebad2
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Quote:
Originally Posted by tomatocity
I am currently dealing with pulley issues and I have not seen that one but I have not looked at Blazers. The crank pulley is probably the equivilent to my 4-groove pulley plus I have a 3-groove WP pulley. Does the power steering pulley have a flat or concave back side? The flat back is a BB pulley and the concave back is a SB pulley. I am guessing this is a non-AC truck.
You lookin for a an original small block power steering pump pulley?...I have a bunch of them laying around.
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Old 09-02-2005, 07:36 AM   #5
JimKshortstep4x4
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It looks like the original setup to me. 69-70 were the same and used cast pulleys.

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Old 09-02-2005, 02:59 PM   #6
tomatocity
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Quote:
Originally Posted by gonebad2
You lookin for a an original small block power steering pump pulley?...I have a bunch of them laying around.
No but thanks for the offer. I would entertain the idea of the correct WP (2-groove, and Crank (3-groove) pulleys for an AC truck with PS.

The SB PS pulley (concave back side) part number ends with '509'
The BB PS pulley (flat back side) part number ends with '537'
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Old 09-03-2005, 08:04 PM   #7
53burb
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70Short,
I have the same setup on mine. Its a '69 3/4 ton Burb with a 350.
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Old 09-03-2005, 08:43 PM   #8
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Pulley

Ditto on the 69-70. In my experience with pulleys, if it lines up and the belt stays on LEAVE IT ALONE.
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Old 09-03-2005, 11:25 PM   #9
70short/step
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Thanks for all your input guys! Much Appreciated!
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