What is a 3 speed Saginaw transmission?
This is a GM light-duty car transmission used from 1966-1985 model years. It has a cast-iron case and extension housing, and a 7 bolt side covers with reverse shift lever on this side cover. The Saginaw is often mistaken for a Muncie.
How do you find the gear ratio on a transmission?
The gear ratio is calculated by dividing the output speed by the input speed (i= Ws/ We) or by dividing the number of teeth of the driving gear by the number of teeth of the driven gear (i= Ze/ Zs).
Is Saginaw a good transmission?
The Saginaw is not a strong transmission, it will break if you drive it hard. Really doesn’t matter what power level. On the other hand, it’s a budget way to have a 4 speed. And a Muncie will go in there right in its place should you want to upgrade later.
What is a Saginaw 4 speed?
The four-speed transmission is very similar to the tried-and-true Saginaw three-speed and fits well behind six-cylinder and eight-cylinder engines. It was originally designed for engines generating less than 300hp; however, upgrade parts are available to make it more compatible with higher horsepower applications.
What is a 3-speed?
3-speed bikes are the minimalist version of multi-geared bikes. Like a single speed bicycle, they are reliable bikes that have a simple aesthetic and low-maintenance design. An internal hub houses the mechanics, which means its unexposed parts are protected from the elements.
What gear ratio is better for acceleration?
A lower (taller) gear ratio provides a higher top speed, and a higher (shorter) gear ratio provides faster acceleration. . Besides the gears in the transmission, there is also a gear in the rear differential.
What is a Saginaw gearbox?
The Saginaw gearbox is a rotary-valve type unit using recirculating ball bearings. They are referred to as recirculated ball-type because they use the same ball bearings on both the worm gear and the sector gear to reduce friction within the housing.
What is a Super t10 transmission?
The Borg-Warner Super T-10 transmission is a heavy-duty, four-speed manual transmission that was designed for use in high-powered muscle and sports cars. The Super T-10 featured a large, 26-spline input shaft, as compared to a smaller 10-spline input shaft of the original T-10 transmission.
How do I identify a Saginaw transmission?
Saginaw transmissions distinguish themselves from the Muncie four-speeds because the cases are cast iron rather than aluminum. Another quick way to determine a Saginaw is that the shifter arms are all located on the side cover of the transmission case (Muncie reverse arms are located on the tailshaft).
How do I know if my Saginaw is a 4 speed?
Registered. The Saginaw 4-speed is easily identified because it has all 3 shift levers on the side cover. The front input shaft may have grooves cut around it’s diameter. These grooves indicate the ratios of the gears inside.
What was the gear ratio on a Saginaw 3 speed transmission?
General Motors used the in-house Regular Production Option (RPO) code “M15” to identify the three-speed and “M20” for the four-speed. Gear Ratios Saginaw three-speed transmissions featured gear ratios of 2.85:1 for first, 1.68:1 for second and 1.00:1 for third when matched with L6 in-line six-cylinder engines.
Do you need an adapter for a Saginaw transmission?
The Saginaw transmission adapters we manufacture will require the installation of a new output shaft. These transmissions are externally shifted and will require shifter components. We make an adapter to mate this transmission to a Jeep Dana 18 or 20 transfer case
Where are the application codes on a Saginaw transmission?
Saginaw transmissions featured application codes on the passenger side of the case near the rear cover. “O” denoted the transmission was equipped with overdrive. “S” identified the three-speed transmission as manufactured in Saginaw, Michigan, from 1962 to 1979.
What’s the gear ratio on a GM Hydramatic?
Transmission Gear Ratio Chart Transmission 1ST 2ND 3RD 4TH GM Turbo HydraMatic 700-R4 3.06 1.62 1.00 0.70 Saginaw 3-speed 1st 2nd 3rd n/a Saginaw 3-speed – 1 Line 2.54 1.50 1.00 n/a Saginaw 3-speed – 2 Lines 3.11 1.84 1.00 n/a
