just wondering if any of you have done this or if its possible,i have a 216 tranny 3spd no overdrive that was in the truck when i bought it and was wondering if i go with a full pressurized oil 235 from a latter truck would thier be any prombloms, i want to be able to go 65 70 on the highway with new gearing in the back and if this is possible what gears would i need if i ran around 30" tires
thanks