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what type of underdrive pulley is this

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Old 09-27-2010, 04:29 PM
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Default what type of underdrive pulley is this

i was told is an slp under drive pulley 25% for a 98 02 ls1
appreciated the input thanx.




Old 09-27-2010, 04:32 PM
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the only thing written on the side is sfi spec 18.1 A560124
Old 09-27-2010, 04:37 PM
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That looks like a TCI/SLP. It's the same pulley as the Powerbond, just those two companies repaint and repackage them and sell them with their name on them.
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Old 09-27-2010, 04:39 PM
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im gonna search it online, are they good under drive pulleys?
im still trying to figure what belts to run.
Old 09-27-2010, 04:42 PM
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It looks like an ASP UD pulley for 96-03 GMC/Chevrolet Truck or SUV

Click link to see what i'm talking about; looks identical to me.
http://www.rpmoutlet.com/avaasp.htm
Old 09-27-2010, 04:45 PM
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its similar ^ im gonna keep looking.
Old 09-27-2010, 04:49 PM
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You can weigh it and that'll tell you if it's ASP or the Powerbond/TCI/SLP! The ASP is a couple pounds lighter.
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Old 09-27-2010, 04:52 PM
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Originally Posted by Matt@Texas-Speed
You can weigh it and that'll tell you if it's ASP or the Powerbond/TCI/SLP! The ASP is a couple pounds lighter.
it weights 10 pounds is a bit heavy.
Old 09-27-2010, 04:58 PM
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Sounds more like an ASP...the Powerbond is closer to 13lbs, if I recall correctly.
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Old 09-27-2010, 05:02 PM
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Originally Posted by Matt@Texas-Speed
Sounds more like an ASP...the Powerbond is closer to 13lbs, if I recall correctly.
i want to make sure that fits ls1's 98 02
Old 09-27-2010, 05:19 PM
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looks like this one with a few things that are diff
http://www.summitracing.com/parts/ASP-948500/?rtype=10
Old 09-27-2010, 05:21 PM
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Originally Posted by doomsdaymachine
i want to make sure that fits ls1's 98 02
The only thing that throws it off is that it's keyed... But it could be for an aftermarket crank.

Honestly, it looks just like the older style asp (i have one on my car). I'm willing to bet that it'll work... but yeah you should keep researching.
Old 09-27-2010, 05:26 PM
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Originally Posted by Nemesis350
It looks like an ASP UD pulley for 96-03 GMC/Chevrolet Truck or SUV

Click link to see what i'm talking about; looks identical to me.
http://www.rpmoutlet.com/avaasp.htm
I take this back, i do see a couple of differences.
Old 09-27-2010, 05:36 PM
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Originally Posted by Nemesis350
The only thing that throws it off is that it's keyed... But it could be for an aftermarket crank.

Honestly, it looks just like the older style asp (i have one on my car). I'm willing to bet that it'll work... but yeah you should keep researching.
yeah thats what i was thinking. Im gonna keep looking
thanx.
Old 09-27-2010, 05:45 PM
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That looks like my LS-1 SLP Pully.The truck ones and the LS-3 look totally different and i am positive it is a LS-1 pully because i put one on my 2002 SS & My 2010 SS just a 1yr ago and they were not the same.
Old 09-27-2010, 05:51 PM
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Originally Posted by blk/slvr02ss
That looks like my LS-1 SLP Pully.The truck ones and the LS-3 look totally different and i am positive it is a LS-1 pully because i put one on my 2002 SS & My 2010 SS just a 1yr ago and they were not the same.
any pics or link i just want to be sure.
Old 09-27-2010, 05:55 PM
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I got 1 from Speed Inc and the other from Scoggin Dicky.And i think LS-1 Speed Inc.& LS-3 Scoggin Dicky.
Old 09-28-2010, 12:25 PM
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thanx ill keep looking.
Old 09-29-2010, 06:27 PM
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ttt...
Old 09-30-2010, 11:49 AM
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Originally Posted by Nemesis350
The only thing that throws it off is that it's keyed... But it could be for an aftermarket crank.

Honestly, it looks just like the older style asp (i have one on my car). I'm willing to bet that it'll work... but yeah you should keep researching.
I ordered and received (years ago) a NEARLY IDENTICAL SLP UDP for my 2000 and it absolutely would NOT fit. Mine was keyed also. It ended up getting stuck on the crank snub and it took me three days to get the f-ker off.. That's why mine was so dinged up. I beat the **** out of it to get it off. I think I threw it out because it was so beat up I didn't think it was any good anymore. Not sure if I should have done that or not, but hey.... Can't cry over spilled oil... it was almost two years ago. Didn't think I could return it in that condition.

I compared it to my stocker and the depth was off. Looked like it belonged on a truck. I would not line up at ALL to any of the other pulleys. Figured that out when it was half way on the crank.



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