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03-26-2002, 06:08 PM
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#1 |
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Registered User
Join Date: Nov 2001
Location: Mesa, AZ
Posts: 105
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Bolt Pattern
I'm looking to buy a bell housing from a 67-72 pickup, does the 4 speed and 3 speed have the same bolt pattern?
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1955 Chevy Shortbed Stepside 2nd Series. http://community.webshots.com/user/chevy55truck |
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03-26-2002, 07:05 PM
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#2 |
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Account Suspended
Join Date: May 2000
Location: IL
Posts: 0
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all chevy 4.3L and 230 and up are same bellhousing pattern after 1954
happy swapping ------------------ -71/C-10(thx teeitup and crews!)350 4+4/CH465(thx 71Chev, GMCPaul, and CPNE)longfleet bed(thnx meathead95)!still building it- -'84 Z28(Z28) 1G1AP87GXEL100000 with H.O. 305/4bbl/190net/hp(L69) 3.73 rear(GT4/YC4) 700R4(MD8-MXO) & other goodies  -79 G20 pass van, 350/th350/10bolt, paint is overrated Randy- Lincoln, IL r68c30@hotmail.com © RSS Enterprises 2000 |
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03-27-2002, 09:35 AM
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#3 |
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Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,507
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Interface to the engine is the same. Interface to the tranny is different for 3 and 4 speed.
------------------ Tim
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Tim |
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03-27-2002, 09:56 AM
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#4 |
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Registered User
Join Date: Aug 2001
Location: rock island,il,usa
Posts: 5,382
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From 67-72 ,you should have the same bolt pattern on both sides of the bell. There will be a difference in the bell pilot hole for the trans.....68-up will be 5 1/8",& 67 & older will be 4 11/16". If you have A car trans(3 or 4 spd),or an sm420 4spd,you will need the small hole bell. the ch 465 4spd,& the later 68 up truck 3 spds will take the large hole bell. On the saginaw trannys(7 bolt side cover),you can swap the throw out collar from car to truck,& use either bell. Good luck.....69 longhorn.
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