dobber wrote:well i had my mechanic take apart the lower unit and reverse the gears, that did not work
then i ordered a whole new /used lower unit from eBay, the seller had an excellent rating and said the lower unit was taken apart and is in perfect condition. well i had my mechanic put it on, i got in the water and the boat would not go into gear at all so the mechanic said that the lower unit was not good so now i ordered a new gear set of eBay and my mechanic is going to use the new gears and the original unit and hopefully after 6 months i will be able to get out on the river,. my mechanic said there is only one way to install the lower unit so he must have done it right
It shouldn't be that hard! I would wonder if something is wrong externally with your shifting setup. By now you should have plenty of parts to make a good one (except maybe for seals). Suggest taking the original apart fully and inspecting all. It should be possible to determine by inspection whether the gears and dog clutch are serviceable. Take closeups and post here. Good idea to get help in putting it together, especially if you replace the pinion and shift seals (good idea!).
My own limited experience says its not a good idea to use a crappy, rusty old shift cable even if it seems to work. You need free action and full travel to keep the shifting parts healthy.