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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | Joined: Aug 2010 Posts: 8 New Guy | | New Guy Joined: Aug 2010 Posts: 8 | Will a saginaw 3 speed transmission from a 69 C10, 250 fit a 66 with the same engine and transmission. | | | | | Joined: Apr 2006 Posts: 78 Shop Shark | | Shop Shark Joined: Apr 2006 Posts: 78 | Kinda anwered your own question...
"The Marines I have seen around the world have the cleanest bodies, the filthiest minds, the highest morale, and the lowest morals of any group of animals I have ever seen. Thank God for the United States Marine Corps!"
Elanor Roosevelt
1966 c-10 stepside
1966 c-10 fleetside
1964 c-10 fleetside
1964 c-10 short bed
1964 c-30 flat bed
1964 c-60 dump truck
1968 Impala
1969 Nova
1971 Nova
1975 LUV
1976 C-30
1977 K-20
1966 SS El Camino
| | | | | Joined: Nov 2002 Posts: 1,002 Shop Shark | | Shop Shark Joined: Nov 2002 Posts: 1,002 | zanemobile, are the 3spd trans identical?
Or is the 66 a Saginaw, and the 69 a later all synchro Muncie. The 69 should bolt right in providing the spline count on the input shaft is the same. There maybe a question as to whether the shift linkage will work.
Larry
I don't own a vehicle that isn't old enough to drink.
| | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | the linkage should be the same but like Larry points out, the difference in the pre and post 68 trannys [nonsyncro and syncro] will be the spline count, you'll need to change the driveshaft slip yoke, not to big a deal if you can find one
Bill | | |
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