2010 Ranger Ext Cab Sport - thump/bump after coming to a stop

[salt_monger]

2010 4.0 SOHC ext cab 'sport' with 5sp auto

Past few years I've noticed a subtle thump/bump just *after* coming to a complete stop.

Eg: I'll be doing normal city driving, roll up to a red calmly braking and coming to a normal stop. I've got fairly gentle braking foot. maybe 1-2 seconds after coming to a complete stop I can 'feel' a very slight bump/thump in the drivetrain or suspension. I really think its the drivetrain and not the suspension unloading, and kinda feels like a transmission action/event, or something odd like the motor settling slightly or maybe something odd with the clutch on the main radiator cooling fan. Its a deeper thump/bump than the AC compressor kicking on and off, and happens even when the heater controls are off and AC not running - and there's no click like you get with the AC.

Shocks are all new and suspension is in decent shape. I think I may have read years ago that this is something to do with the torque convertor and isnt unusual on these vehicles.

Does this ring a bell for anyone? I posted this in the 4.0 engine group as I think its engine or driveline related.

 

[Mechrick]

Spline bind.

It's usually more noticeable with lifted trucks. Sometimes can be cured with special spline grease that has teflon in it, if that doesn't work, replace the driveshaft yoke that slides into the transmission/transfer case.