Re: Overdrive 3 Speed
			 
			 
			
		
		
		
			
			Dave:  
I have the seven bolt side cover 3 speed with overdrive transmission. My tranny has synchronized first gear.  I am running 3.54 rear end.  Results in about 2000 rpm's at 60mph.  I think it was one of the best upgrades I made. Parts are getting a bit hard to source, but so far I haven't needed anything since I installed it a few years ago. Hardest parts are electric solenoid and governor switch.  My vote would be to go for it. I think it would cut your rpm's about 30% in overdrive.   
 
Hope this helps.  Manuals for tranny can be found online for free.  Let me know if you are interested.  
Regards 
Steve  
New Orleans
		 
		
		
		
		
		
		
		
		
	
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