Hello I have a friend that has ploblems with trans in his sun truck its a 1990 F150 XLT 4x4 with auto and 351w .The auto is 4 speed they have put in 3 tranny in 6mo at 1000.00 ea for used ones getting in deep they are getting ready to get another one for 750.00 but would like to change to a 4speed or 5 speed std what parts do they need and dose any one have some of the parts they need for sale if so please let us know Thank you