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Unread 07-03-2013, 08:17 PM   #1
spottedfrog
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1979 CJ5 
 
Join Date: Sep 2010
Location: Grand Junction, Colorado
Posts: 833
Help quick, difference between pumps?

I have a new engine going into my CJ soon. The block is an '80 258.

My current block is a '79. I planned on using all accessories and pulleys from my old engine on the new.

BUT I'm finding the part numbers for the water pump are different between the two years.
What EXACTLY is the difference.
can I get way with using a '79 pump on the '80 block? I ask because I have a new '79 pump.

P.S. My Power steering is from an '80

Thanks

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Unread 07-04-2013, 10:38 AM   #2
spottedfrog
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1979 CJ5 
 
Join Date: Sep 2010
Location: Grand Junction, Colorado
Posts: 833
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Unread 07-04-2013, 02:53 PM   #3
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 5,181
There are 2 different WP's for the late model 258's.
One rotates opposite of each other. The reverse rotation pump is used with the serpentine belt 258's
You may need to go to your parts house and look at them BOTH. To see the diff between the 2 yrs.
LG
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