Summary for 1970, 1971, 1972, 1973, 1974, 1975,  Data from the Standard Catalog of 4x4's by Robert C. Ackerson
- 6 cyl - T14A, 8 cyl - T15A, T-18 opt, TH400
- 1974 / 75 - Wagoneer only TH400 only

Data from the 1976 Factory Service Manual (note: some models did not have all the transmission options)

MODEL, Engine, Speeds, Transmission, 1st gear, 2nd gear, 3rd gear, REV, 4th gear, 5th gear, NOTES
ALL, ALL, 3, Warner T-15A, 2.997, 1.832, 1, 2.997, n/a, n/a
ALL, ALL, 4, Warner T-18, 6.324, 3.092, 1.686, 7.439, 1, n/a
ALL, ALL, 3 AT, TH 400, 2.4815, 1.4815, 1, 2.0769, n/a, n/a, 2.4:1 converter stall ratio

Data from the 1977 Factory Service Manual (note: some models did not have all the transmission options- Wagoneers ONLY had ATs)

MODEL, Engine, Speeds, Transmission, 1st gear, 2nd gear, 3rd gear, REV, 4th gear, 5th gear, NOTES
Chero/J-trucks only, ALL, 3, Warner T-15A, 2.997, 1.832, 1, 2.997, n/a, n/a
Chero/J-trucks only, ALL, 4, Warner T-18, 6.324, 3.092, 1.686, 7.439, 1, n/a
ALL, ALL, 3 AT, TH 400, 2.4815, 1.4815, 1, 2.0769, n/a, n/a, 2.4:1 converter stall ratio

Data from the 1979 Factory Service Manual (note: some models did not have all the transmission options- Wagoneers ONLY had ATs)
MODEL, Engine, Speeds, Transmission, 1st gear, 2nd gear, 3rd gear, REV, 4th gear, 5th gear, NOTES
Chero/J-trucks only, ALL, 3, Warner T-15A, 2.997, 1.832, 1, 2.997, n/a, n/a
Chero/J-trucks only, ALL, 4, Warner T-18, 6.324, 3.092, 1.686, 7.439, 1, n/a
ALL, ALL, 3 AT, TH 400, 2.4815, 1.4815, 1, 2.0769, n/a, n/a, 2.4:1 converter stall ratio

Data from the 1980 Factory Service Manual (note: only the 727 was used in FSJ models, the 999 was ONLY used in CJs)
MODEL, Engine, Speeds, Transmission, 1st gear, 2nd gear, 3rd gear, REV, 4th gear, 5th gear, NOTES
ALL, 258, 4, Model T-176, 3.52, 2.27, 1.46, 3.52, 1, n/a
ALL, 360, 4, Model T-176, 3.01, 2.08, 1.47, 3.01, 1, n/a
J20 only, 360, 4, Warner T-18, 6.324, 3.092, 1.686, 7.439, 1, n/a
ALL, ALL, 3 AT, TF 727, 2.45, 1.45, 1, 2.2, n/a, n/a

Data from the 1981 Factory Service Manual 
(note: only the 727 was used in FSJ models, the 999 was ONLY used in CJs)

MODEL, Engine, Speeds, Transmission, 1st gear, 2nd gear, 3rd gear, REV, 4th gear, 5th gear, NOTES
ALL, 258, 4, Model T-176, 3.52, 2.27, 1.46, 3.52, 1, n/a
ALL, 360, 4, Model T-176, 3.01, 2.08, 1.47, 3.01, 1, n/a
J20 only, 360, 4, Warner T-18, 6.324, 3.092, 1.686, 7.439, 1, n/a
ALL, ALL, 3 AT, TF 727, 2.45, 1.45, 1, 2.2, n/a, n/a

Data from the 1982/83 Factory Service Manual 
(note: the 727 was used in FSJ models with V8s, both the 727 and 999 were used with the 258)

MODEL, Engine, Speeds, Transmission, 1st gear, 2nd gear, 3rd gear, REV, 4th gear, 5th gear, NOTES
ALL, 258, 4, Model T-176, 3.82, 2.27, 1.46, 3.82, 1, n/a
ALL, 360, 4, Model T-176, 3.52, 2.27, 1.46, 3.52, 1, n/a
ALL, 258, 5, Model T-5, 4.03, 2.37, 1.5, 3.76, 1, 0.76
J10 only, 360, 4, Warner T-18, 6.324, 3.092, 1.686, 7.439, 1, n/a
Chero/Wag/J-trucks, 258, 3 AT, TF 999, 2.45, 1.45, 1, 2.2, n/a, n/a
ALL, ALL, 3 AT, TF 727, 2.45, 1.45, 1, 2.2, n/a, n/a

Data from the 1984 MR 253 Factory Service Manual (last full manual for the SJ model)
MODEL, Engine, Speeds, Transmission, 1st gear, 2nd gear, 3rd gear, REVERSE, 4th gear, 5th gear, NOTES
GW/J10, 258, 4, Model T-176, 3.82, 2.29, 1.46, 3.82, 1, n/a
J10, 360, 4, Model T-176, 3.52, 2.27, 1.46, 3.52, 1, n/a
GW/J10, 258, 3 AT, TF 999, 2.74, 1.55, 1, 2.2, n/a, n/a
GW/J10/J20, 360, 3 AT, TF 727, 2.45, 1.45, 1, 2.2, n/a, n/a