From 1984 through 1988 the manual transmission on the C4 Corvette was a Doug Nash 43 Overdrive unit. This featured a unique setup in that it was a fourspeed manual, but the second through fourth gears featured a pushbutton overdrive feature for added fuel efficiency.
It doesn't take a lot of research to uncover the bad press about theDoug Nash 43 manual transmission. As Richard F. Newton informs us thismonth in" C4 Projects" (page 68), " Chevrolet was working Jun 07, 2001 The Doug Nash 43 transmission is a unique combination of a 4speed manual coupled with an automatic overdrive in 2nd, 3rd and 4th gears.
The difficulity and grinding of shifting into reverse is an indicator that your clutch needs replacement. Doug Nash was a famous Detroit hotrodder in the 1960s, who, after retiring from racing, got into the engine and transmission business, eventually developing a manual transmission for General Find great deals on eBay for Doug Nash 4 3 in Manual Transmission Parts.
Shop with confidence. CLICK HERE to Visit the Doug Nash Problem Explorer. Corvette 4 3 Overdrives. We have been rebuilding Corvette 4 3 Overdrives since 1984.
This transmission incorporates a Super T10 4 speed with an automatic overdrive. The overdrive can come on in second, third, and fourth gears. thus 4 this" buy it now" is for one corvette doug nash 4 3 manual transmission shifter. THE SHIFTER WAS REMOVED FROM A 1986 CORVETTE AND WAS IN WORKING CONDITION. 8488 Corvette T10 Manual Transmission Doug Nash 43 Clutch Fork USED manual shift Corvettes came through with the Doug Nash 43 overdrive transmission. The '84 and '85 units were almost identical, with the only difference being a slightly revised oil pump to reduce some of the whining noise.
From 1984 through 1988, the Corvette was available with a Doug Nash" 43" transmission a 4speed manual coupled to an automatic overdrive on the top three gears. This unusual transmission was a synergy that allowed Corvette to keep a stout 4 speed, but add an overdrive.
Aug 16, 2013 All early C4 manual transmission Corvettes have the Doug Nash 43 transmission, which automatically drops the 2nd, 3rd, and 4th shifted gear into Overdrive after accelleration has been completed, and Cruising has begun.