Apologies in advance. I tried search and got too many results. I have an 88 4Runner with a top shift W56-B transmission/transfer case. The synchros are gone in 3rd and all I can find near me (and afford) are forward shift W56. Can I mount my top shift transfer case on a forward shift W56 transmission? How do I plug the now empty transfer case shifter hole and shift fork channel on the forward shift W56 transmission?