A 1 piece driveshaft will be fine. The bigger question is if the t5 is strong enough for a 3/4 ton truck. It will probably be fine if you have a tired 235 and don't plan to work it to hard or tow trailers. If you intend to haul loads, a stronger transmission such as the A833 or NV4500 would be advisable. You could probably get 6 T5 transmissions for the price of 1 NV4500, so only you can determine what is right for your truck and your wallet.
