hi I'm new to the site i have a chevy truck with a 6 inline engine and wanna go overdrive but dont know what tranny to get there is one here in town for $450 he says it was rebuild not too many miles ago i'ts a 200 4r with 1t80g0860 numbers he says it came out of a 86 cutlass any way is this a good tranny or should I look for an other trans I'm not looking for racing just a freeway cruiser.. thanks