To shift a Doug Nash 4+3 transmission, first engage the clutch and shift into first gear. For the overdrive function, while in fourth gear, pull the shift lever back to activate the overdrive, which provides a higher ratio for better fuel efficiency at highway speeds. Ensure to fully release the clutch before accelerating to smoothly transition between gears. Always consult the specific vehicle's manual for detailed instructions and recommendations.
I have to assume you mean "What is a Doug Nash 4+3?" If that is the case then I can answer that question. The Doug Nash 4+3 is a transmission that Chevy used in the Corvette from 1984-1988. It is a Borg Warner ST10 gear box with a Doug Nash overdrive unit mounted on the rear of the transmission. It allowed 4 forward gear ratios by shifting the manual ST10 portion of the transmission and an additional 3 forward ratios when the overdrive unit was engaged in gears 2,3 and 4 thus the name 4+3.
The 1985 Corvette was equipped with the Doug Nash 4+3 manual transmission, which featured four standard gears and an overdrive for enhanced highway efficiency. This transmission allowed for smooth shifting and improved performance in various driving conditions. Additionally, the 1985 model could also come with a 3-speed automatic transmission as an option.
There are 3 shift solenoids one on the outside of the transmission in the front, and two on the inside of the transmission
Inside the transmission pan in front of transmission.
On the top of the transmission, with a harness headed to it, should be about 3 bolts to take off, then valve comes off... shift solenoids are in there
There is 3 of them that is bolted to the valve body in the transmission. You will have to remove transmission pan to service them.
Mainly because the C6 transmission only has 3 gears and no overdrive.
It's a 3 speed transmission. Standard Trannys were 5 speed, but autos only have 3.
There are 3 solenoids and they are located inside of the transmission.
It does not have a 3-4 shift solenoid. It has a 1-2 and 2-3 only. What you are calling 4 is overdrive, no solenoid.
Doug - 1991 Doug's Comic Collaboration Doug's Pet Capades 3-3 was released on: USA: 25 April 1993
It is a 4 speed automatic. Therefore it will shift 3 times. It will shift from 1st to 2nd, 2nd to 3rd, and 3rd to 4th.