So here's the deal. I've looked all over the net and i cant find anything about swapping out an NV3500 for an SM465.. ive found alot of threads about replacing an auto with it or replacing the 465 with an NV3500 or 4500. What I want to know is what exactly i need to swap out my 3500 for the 465. I already have the 465 with a NP241 TC for practically free and dont plan on putting another 3500 back in it.. maybe a 4500 down the road but i dont want to spend the 1000$ for it even though it has the OD i dont plan on doing alot of long distance driving. So i was wondering if anyone could tell me what i need or need to change driveshaft-wise or crossmembers or clutch or anything like that. BTW its going in a '93 K1500 with the 350. Any help is greatly appreciated, thx .