TheDirtman

All aftermarket driveshafts are basically the same thing using the same parts from spicer. Tom woods does use his gold joint that he has made for him but will use spicer if you ask for it. The only other real difference is the way they mount to your jeep. Some will require new yokes on the transfer case and pinion. There are some that will bolt to the JK pinion flange on the factory axle. The mounting system is something to look at. I would recommend a shaft that uses a 1310 yoke with the U-strap for simplicity and ease of finding parts as most auto parts stores will carry the straps. I would avoid the ones that use a u-cap and small bolts as if you loose a u-joint they can snap off in the threaded area and can be very hard to remove out on the trails. For example the tom woods shaft uses a custom pinion flang and if you should damage it you will have to get a new one from them. Tom Woods are very good with their service and speed of sending out replacement parts.

You might also do a search for a local driveline company that will custom build you a shaft and service it over the years should you need it.

Jeepstercanada

Aftermarket front driveshafts will clear the front exhaust ? Right

TheDirtman

They will up to a point. They use a smaller diameter tube vs the factory shaft so you gain about 1" of clearance. If you have long travel shocks you are bound to hit the exhaust at full droop. A limiting strap placed at the differential will keep your driveshaft from hitting your exhaust while maintaing individual droop at each wheel.