I'm working on a 2007 F150 V6 with a 4 speed automatic.. which seems to be a 4R70W. It has 36,xxx miles on it and the transmission tailshaft is cracked by the mount and leaking fluid.

The tailshaft can be replaced by itself without disassembling and removing the whole transmission right? The part number/Ford Engineering number on it is "RF-F3LP-7A040-AA" and it says 42A below that. Can I look for any tailshaft or just this number? F3 is a 1993 number isn't it? I don't know the length of it but it doesn't have a hole for a speedo cable.

 

3L3Z.7A039.AA
Let me know if you want it ordered
$150
List-$189.99
Q256767

 

Sw1tchfoot...check out Tousley who is another site sponsor. Call and ask for Steve, or send him a PM. here:
https://www.ford-trucks.com/forums/p...newpm&u=635962

Here's their pricing:
Ford Parts - Tousley Ford Parts Depot
For $125+ it looks like they have Autofair beat...sorry bud!

 

Thanks for the info, but I need the truck going soon (and i'm short on $$$ this time of the year) so I decided that I'm going to make a run and look for the part at PicknPull. It seems that I may find the part on a 2wd F150 or Explorer.

I found the likely cause of the problem, the truck got stuck in the past and someone pulled it out.. with the transmission still in park.