Transmission gearing and info! Save INFO!

[gregamorton]

Guys I found this info on another forum and thought some of yall could use it. I was searching for info on my 1978 rug OD transmission that I got to go behind a 240 six to put in my crewcab. I was looking for gear info and the overdrive ratio. I dont know if all of these are right but Maybe they are close any ways.


Model: T170FS/RUG or SROD (single rail OD)
Manufacture: Tremec
Type: Four speed overdrive w/ push down reverse
Years: 1980-83
Truck:
Engines: 300, 302
Construction features: Aluminum, synchronized in forward gears, shifter near back
Trans code: B
Gear ratios: 3.07 1.72 1.00 0.70

Model: T170F/RUG or SMOD (side mounted OD)
Manufacture: Tremec
Type: Four speed overdrive
Years: 1978-84
Truck: F100 (2wd)
Engines: 300, 302/351
Construction features: Cast iron, synchronized in forward gears, 3 shift rails on side of case
Trans code: B
Gear ratios:
- 3.25, 1.92, 1.00, 0.78, 3.25 (300/302)
- 3.01, 1.78, 1.00, 0.78, 3.01 (351)

Model: T170FT/RTS or TOD (top shift overdrive)
Manufacture: Tremec
Type: Four speed overdrive
Years: 1984-85
Truck: F100/F150/F250
Engines:
Construction features: Aluminum case and shift tower
Trans code: B
Gear ratios:

Model: Tremec 3.03
Manu factor: Tremec
Type: Three speed non overdrive
Years:
Truck: F100/150/250
Engines: 240 (RAN), 300/360/390 (RAT)
Construction features: Cast iron case, top-loader design, syncro'd first gear, column shift
Trans code: C
Gear ratios:
- 2.42, 1.61, 1.00, 2.33
- 2.99, 1.75, 1.00, 3.17
- 3.41, 1.86, 1.00



Model: NP-435
Manufacture: New Process
Type: Four speed non overdrive
Years: 1980-90
Truck: F100/F150/250/350
Engines: 300, 302/351, 351/400
Construction features: Non syncro first gear, cast iron w/aluminum top plate, shifter in top, PTO Pass side
Trans code: A
Gear ratios: 6.69, 3.34, 1.79 or 1.66, 1.00

Model: T18
Manufacture: Borg-Warner
Type: Four speed non overdrive
Years: 1965-93
Truck: F100/F150/F250/F350
Engines: 300, 302/351, 460
Construction features: Non syncro first gear, case iron case, PTO port on passenger side
Trans code: F
Gear ratios: 6.32, 3.09, 1.69, 1.00

Model: T19
Manufacture: Borg-Warner
Type: Four speed non overdrive
Years: 1970-91
Truck: F250/350
Engines: 300, 302/351, 460, 6.9/7.3
Construction features: Full syncro, case iron, PTO port on both sides
Trans code: P
Gear ratios:
- 6.32, 3.09, 1.69, 1 (F500-F800 only and 83-86 F250s with 460 and 4wd)
- 4.02, 2.41, 1.41, 1 (83-86 F250+ 460 and 2wd or diesel and 2/4wd)
- 5.11, 3.03, 1.79, 1

Model: T85
Manufacture: Borg-Warner
Type: Three speed overdrive
Years: 1958-76
Truck:
Engines:
Construction features: Non-syncro first gear, case iron-side loaded case w/ 9 bolt cover
Trans code:
Gear ratios: 2.94, 1.94, 1.00






Model: T86G/H
Manufacture: Borg-Warner
Type: Three speed overdrive
Years: 1956-64
Truck:
Engines: 223, 292
Construction features: Non-syncro first, cast iron case, shifter on the side
Trans code:
Gear ratios:
- 2.80, 1.69, 1.00, 0.70, 3.80 (G-6 cylinder)
- 2.57, 1.55, 1.00, 0.70, 3.49 (H-8 cylinder)

Model: T87
Manufacture: Borg-Warner
Type: Three speed non overdrive
Years: 1948-75
Truck: F250
Engines:
Construction features: Non-syncro first gear, case iron-top loaded case w/ 9 bolt cover
Trans code: E
Gear ratios:

Model: T89
Manufacture: Borg-Warner
Type: Three speed non overdrive
Years: 1956-71
Truck:
Engines:
Construction features: Non-syncro first gear, cast iron-top loaded case with 9-bolt side cover
Trans code: D
Gear ratios: 3.17, 1.75, 1.00, 3.76

Model: T98
Manufacture: Borg-Warner
Type: Four speed non overdrive
Years: 1948-64
Truck: F100/250
Engines:
Construction features: Cast iron
Trans code: F
Gear ratios: 6.40, 3.09, 1.69, 1.00, 7.82



Model: M5OD-R2 (M5R2)
Manufacture: Mazda
Type: Five speed overdrive
Years: 1988-96
Truck: F150 and F250LD
Engines: 300, 302
Construction features: Aluminum throughout, fully synronized, integrated bell housing
Trans code: M
Gear ratio: 3.91, 2.24, 1.49, 1.00, 0.80


Model: ZF S542/S547
Manufacture: ZF
Type: Five speed overdrive
Years: 1988-94 (S542) and 95+ (S547)
Truck: F250/350
Engines: 300, 351, 460, 6.9/7.3
Construction features: Aluminum throughout, fully synronized, integrated bell housing, PTO covers on both sides of case
Trans code: Z (88/9), C (88-97 close ratio), W (89-01 wide ratio)
Gear ratios:
- 5.72, 2,94, 1.61, 1.00, 0.78 (gas engines)
- 4.14, 2.37, 1.42, 1.00, 0.78 (diesel engines)

[averagef250]

Good info. ZF 5 speeds are not .78 OD though.

[gregamorton]

good info is not worth much if it is not correct. Maybe we need to make up a list that we know is correct.