i have a 95 t100 i did the 5 speeed swap and didnt run into that many problems the cabs are already punched for the mastercylinder you jus have to drill out the bolt holes and main hole the clutch and brake pedal assembly out of a 90 to 95 truck will fit with the exception of the top bolt in whick i jus made a little bracket to fit your crossmember will not fit but toyota did put the 5 speed in the t100 so a crossmember would not be hadr to find the rear drive shaft is different legnth also so one of thoes would need to be purchased but the front remains the same as for the computer problems i did not run into any the wiring to your tranny will need to be trased and spliced in for your reverse lights and to engage your fron hubs with the transfer case other than that i cut the extra wires short and taped them off...your guage cluster will always read that your in park unless you replace it tho i didnt incur any problems with the running of the motor or starting bc the truck thinks its in park it will start in gear tho