App. 89 and up had the electric speedo---88 and back had the mechanical speedo. Adapters are made for the electric to mech but are expensive. Depending on preference most of the S-10 four bangers had the deep first gear--better ratio of 3:79 in the V-6 trannys. The WC trannys out of the Camero`s were the best but need the S-10 tailshaft for the front mount shifter----good luck
