Originally Posted by mechanicboy
I might be totally off base but do all 2wd trucks have a 2 piece? Maybe the one piece is because the transfercase has a different output? I have no idea because I've never been under a 2wd.
We have covered most of the 2wd RCSB models and years which would be the most likely to have a single piece driveshaft. Azdriver has a 2012 XLT, mine is a 2013 STX and I looked under a 2014 Tremor.
I think one of the reasons Ford went to the 2 piece driveshaft on the Mustang and F150 was because of vibration at highway speeds. My Lightning did have a little vibration at certain highway speeds that never went away whether I change tires or tires and wheels. I had the older steel driveshaft where as I think the aluminum had less vibration.
I have to say my 2013 STX is smoother with no vibration at highway speeds. The flip side is I have the slight shudder between 15-20mph on take off. It is like robbing Peter to pay Paul.
I know the Mustang guys picked up some performance going to the single piece driveshaft but some complained of vibration which seemed to be more dependent on who made the driveshaft.
We have went off topic in this thread but this is good info for the Tremor guys because I know most didn't buy them to putt around in and will be modding.