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I have a 64 Chevy II originally equipped with a 3 OTT & 194 eng that I want to install a 4 spd that I took from a Pontiac Astre like a Vega style car. the 4 spd has a tall 1st gear that I like, my Vega wound up to 40 mph be for time to shift. This also will be great for my future V8 install. ***I am wondering if I can still retain my Bench seat***. The 4 spd is the same length as the 3 spd so no problems there drive shaft fits also. I can't find the shifter lever & linkage to compare the two shift lever positions. I have it but its MIA. Cutting the floor & welding the new floor shift hump in no problem there ether. Just would like to keep the bench seat. Any one out there came across same problem??? thanks in advance, Jay
One thing to keep in mind is the Astre shifter was mounted to the floor, not the transmission like the Chevy II 4 speed shifter was. You can buy a reproduction bench seat shifter for your Chevy II but you will likely have to drill the holes in the trans tailhousing to mount it. I think the bosses are in the tailhousing, the holes are just not drilled.
 

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This also will be great for my future V8 install. Jay
Can you be more specific as to what V8 you plan to do? Stock 350? 283? Stroker engine with 400 horsepower?

As Dave suggested, that should be a consideration. GM never put a Saginaw in anything too powerful. Some low horse stock 350's, 327's, 283's but no high performance applications.
 
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