Saw several questions regarding T-5 info so I gathered up some information that some might find useful and figured it would be nice to have all this information in one location rather then searching thread after thread. Model Yr...Engine(s).Input....Speedo.......Ratio........Model # (BWA) 1983........2.8 V6......14............7..............T5E.78......1352-015 1983........2.5 L4......14............7..............T5H.73......1352-027 1983........5.0 V8......26............7..............T5G.73......1352-028 1984........2.5 L4......14............7..............T5K.72......1352-054 1984........2.8 V6......14............7..............T5E.78......1352-061 1984........5.0 V8......26............7..............T5G.73......1352-062 1984 1/2..LG4/LG9...26............7..............T5G.73......1352-070 1985........2.8 V6......14............7..............T5P.76......1352-071 1985........5.0 V8......26............7..............T5U.63......1352-072 1985........2.5 L4......14............7..............T5R.72......1352-083 1985........2.8 V6......14............7..............T5S.73......1352-084 1986........................26............7..............T5V.61......1352-150 1986........2.8 LB8.....14............7..............T5P.76......1352-156(aft) 1986........LG4/L69....26............7..............T5U.63......1352-157 1986........L4 LQ9......................7..............T5R.72......1352-158 1987........LB9 308....26............9..............T5U.63......1352-166 1987........LB9...........26............7..............T5U.73......1352-178 1987........V6............14............7...............T5P.76......1352-181 1987........LB9 308....26............9..............T5U.63......1352-182 1987........LB9...........26............7..............T5U.73......1352-183 1987........V8.............26............7..............T5U.72......1352-185 1988........B9 5.0L.....26............7..............T5U.73......1352-175(wc) 1988........LO3 5.0L...26............9..............T5U.63......1352-176(wc) 1988........LB8 V6......14............7..............T5P.76......1352-177(wc) 1992 1/2..LB9 5.0L...26............7..............T5U.73......1352-212(wc) 1992 1/2..LO3 5.0L...26............9..............T5U.63......1352-213(wc) 1992 1/2..2.8 V6.......14............7..............T5P.76......1352-214(wc) 1992 1/2..2.8 V6.......14............7..............T5P.76......1352-228(wc) 1989-92...LB9 5.0L...26............7..............T5U.73......1352-195(wc) 1989-92...LO3 5.0L...26............9..............T5U.63......1352-196(wc) 1989-92...LB8 V6......14............7..............T5P.76......1352-197(wc) 1993........3.4L V6.....26............7..............T5Z.72......1352-210(wc) Speedo info 7=Purple Speedo 9=Red Speedo Ratio........1st.............2nd.........3rd.........4th............Rev.......5th T5E..........3.50...........2.14.......1.39........1.1............3.39......See T5G..........2.95...........1.94.......1.34........1.1............2.73......Ratio T5H..........3.50...........2.14.......1.39........1.1............3.39......Column T5K..........3.76...........2.18.......1.42........1.1............3.76......Above T5P..........4.03...........2.37.......1.49........1.1............3.76 T5R..........3.76...........2.18.......1.42........1.1............3.76 T5S..........3.50...........2.14.......1.39........1.1............3.39 T5U..........2.95...........1.94.......1.34........1.1............2.76 T5V..........3.35...........1.93.......1.29........1.1............3.15 T5Z..........3.75...........2.19.......1.41........1.1............3.53

thats a great list...

Mods..

Don't mean to bring back an old thread, but this has some good information on it, but this has been dormant for a awhile, any way to make the information a sticky or tech article for easier searching? If anything needs to be done on my end let me know.

thanks

Was searching TGO for general T5 ratio info. I found this handy chart below from 2003.

I don't know info source, nor if it is accurate.

In any event I thought I'd post because my 1987 IROC T5 w/ G92 has model number 1352-157, indicating a 1986 model T-5 for LG4/L69. Apparently GM was using up old inventory in Van Nuys. My build date is end of January 1987.

I'm mostly curious about the source of the above-posted info more than anything, and about how the dates/models were determined. I guess it's no surprise to me that GM would put an '86 box in an '87 car.

Thanks,
Rich