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Old 01-10-2019   #1
jeepsrdreaming
 
Join Date: May 2018
Location: nyc
Posts: 17
Default Secondary Vacuum pump for 91

I thought there were all the same, got a used one on ebay for a 1990 but i have a 1991, anyone want to trade, buy mine, or have a 1991 to sell? thanks!

P.S. I paid $115 for the 1990 one
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Old 01-11-2019   #2
G8nightman
 
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Location: NYC
Posts: 1,182
Default Re: Secondary Vacuum pump for 91

Where in NYC are you I might have a spare?
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95 Chevy ZR1 #338 'SOLD'
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Old 01-11-2019   #3
Andy
 
Join Date: Aug 2014
Location: Chantilly, VA
Posts: 37
Default Re: Secondary Vacuum pump for 91

Although currently shown as out of stock, Rockauto lists a reman for a '91 @ $70. You would need to check the part numbers to ensure their being identical to yours.
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1990 black on black #1042 - sadly - sold
1993 Ruby #140 - stock
1991 QB #1608 - heads and top end ported, Watson headers, B&B 3"exhaust, Haibeck chip, 4.10 gears
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Old 01-12-2019   #4
WVZR-1
 
Join Date: Oct 2004
Posts: 1,889
Default Re: Secondary Vacuum pump for 91

Quote:
Originally Posted by jeepsrdreaming View Post
I thought there were all the same, got a used one on ebay for a 1990 but i have a 1991, anyone want to trade, buy mine, or have a 1991 to sell? thanks!

P.S. I paid $115 for the 1990 one

I believe all you should need to do is change a connector to use the '90 on a '91. I've no idea what you actually bought but there's many other solutions for pumps.

Is your only apparent issue just the connector?
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Old 01-12-2019   #5
Ccmano
 
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Join Date: Jun 2006
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Default Re: Secondary Vacuum pump for 91

Quote:
Originally Posted by WVZR-1 View Post
I believe all you should need to do is change a connector to use the '90 on a '91. I've no idea what you actually bought but there's many other solutions for pumps.

Is your only apparent issue just the connector?
Agreed, it’s just the connector. There a multitude of identical pumps on the market, GM used them in other applications. The connectors are a simple power and ground. Unless your trying to stay NCRS or your don’t feel technically capable just replace the connector. We recently did one on a friends Z.
H
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