Doug nash manual

 · The Doug Nash 4+3 was a four-speed manual with an automatic overdrive on the top three gears. Needless to say, this hack job of a transmission was anything but a Estimated Reading Time: 4 mins.  · 'Doug Nash 4+3' manual transmission is is an unusual mixture of a 4-speed manual paired with an automatic overdrive. Generally the OD worked in the upper three gears, hence the name "4+3".Estimated Reading Time: 4 mins.  · The magnesium Doug Nash is a real 5 speed with 1to1 in 5th gear, the aluminum Doug Nash is an overdrive transmission, hence 4+1. It works great on the street. I found parts from Richmond gear. els, . SHARE POST # Rick Davis likes this.

The magnesium Doug Nash is a real 5 speed with 1to1 in 5th gear, the aluminum Doug Nash is an overdrive transmission, hence 4+1. It works great on the street. I found parts from Richmond gear. els, . SHARE POST # Rick Davis likes this. It replaced the "4+3" manual plus overdrive Doug Nash unit that first appeared in Corvettes. It was a no-cost option (the four speed automatic was standard) with improved shifting characteristics as part of the bargain. The Doug Nash 4+3 was a four-speed manual with an automatic overdrive on the top three gears. Needless to say, this hack job of a transmission was anything but a tight and sporty manual.

Used Chevrolet Corvette - V8 -DOUG NASH 4-SPEED MANUAL WITH OVERDRIVE- Stock # RIJM in Mundelein, IL at North Shore Classics, IL's premier. The Chevrolet Corvette (C4) is a sports car produced by American automobile manufacturer available with a Doug Nash "4+3" transmission - a 4-speed manual coupled. Feb C4 General Discussion - 85 C4 Manual 4+3 Doug Nash Overdrive Issues - The manual transmission on my 85 C4 has a problem in the overdrive.