Broke her at the strip.........
Originally Posted by FX4 Matt
I dont know, if you have not broke anything I would say no cause you make alot more power than me. And I take it you launch in 4X4? but let's say you break one I would not even know where to find a stronger one what did JDM say?
Originally Posted by rafa26
Didn't ask them yet ! Probably FATHERFORD knows, let's wait for him to chime in.
Originally Posted by FX4 Matt
Well I have to find a driveshaft and good U-joints know of any?
Originally Posted by FoMoCoFan17
Spicer U-joints
Don't know about the driveshaft?
Don't know about the driveshaft?

Originally Posted by FX4 Matt
Man I went to every part store with in 50 miles of my house today nobody had U-joints for my truck only the dealer had 2 for 55 each 

Good Luck
Originally Posted by FoMoCoFan17
If it can wait I can make a call mon. for you.
Good Luck
Good Luck
Last edited by FX4 Matt; Apr 14, 2007 at 05:30 PM.
My driveshaft was built with the heaviest Spicer U Joints and a Superduty carrier bearing. The tubing was more robust than stock (not saying much there, since the stock shaft sounded like a Coke can when you flicked it with your finger...).
Just be sure to do it right the first time, and it'll cost you less in the long run.
I'll be able to pressure test my shaft soon, since I upgrade my blower setup with a +2 lower and new injectors next weekend. Looking at ~ 440-450RWHP and 470 RWTQ with the new tune.
Good luck, and sorry you had this problem.
Lee
Just be sure to do it right the first time, and it'll cost you less in the long run.
I'll be able to pressure test my shaft soon, since I upgrade my blower setup with a +2 lower and new injectors next weekend. Looking at ~ 440-450RWHP and 470 RWTQ with the new tune.
Good luck, and sorry you had this problem.
Lee
Originally Posted by RBFC
My driveshaft was built with the heaviest Spicer U Joints and a Superduty carrier bearing. The tubing was more robust than stock (not saying much there, since the stock shaft sounded like a Coke can when you flicked it with your finger...).
Lee
Lee
Originally Posted by FX4 Matt
Well I'm back from the track (I met up with bootleg837) and came back with no times! I get to the line all ready to lay down a good time untill the light turns green and I feel the truck start to move and I nail it about 2 feet later SNAP!! I sheared off the U-bolts in the rear. It scared the chit out of me at first as the truck went into fail safe mode. So I had to take the driveshaft out and putt to a gas station called ford they towed me home. so at least I found a weak link...

wow that sucks! sorry to hear about that...
looks very familiar though...

only difference is the yoke is what broke in my case. i dont think the driveshafts are the problem, but rather the axle wrap putting too much stress on the u joints. im not saying the driveshaft couldnt be used to be replaced by a stronger ones, but i believe traction bars may be as much if not more important...
i had my driveshaft straightened and reinforced my leaf spring to rear end junctions as a temporary fix until i fab up some traction bars, and have been ok so far.
driveshaft safety loops are probably not a bad idea, especially if your front u-joints decide to go...
oh and thanks for the input miwico
looks very familiar though...

only difference is the yoke is what broke in my case. i dont think the driveshafts are the problem, but rather the axle wrap putting too much stress on the u joints. im not saying the driveshaft couldnt be used to be replaced by a stronger ones, but i believe traction bars may be as much if not more important...
i had my driveshaft straightened and reinforced my leaf spring to rear end junctions as a temporary fix until i fab up some traction bars, and have been ok so far.
driveshaft safety loops are probably not a bad idea, especially if your front u-joints decide to go...
oh and thanks for the input miwico
After you broke that did you put the stock driveshaft back in? I'm thinking about just putting it in just to see if its bad cause it has a few small scraches on it I donno what to do 
I am looking in to safety loops good call!

I am looking in to safety loops good call!
Last edited by FX4 Matt; Apr 14, 2007 at 07:45 PM.
Originally Posted by Smok][n
wow that sucks! sorry to hear about that...
looks very familiar though...

only difference is the yoke is what broke in my case. i dont think the driveshafts are the problem, but rather the axle wrap putting too much stress on the u joints. im not saying the driveshaft couldnt be used to be replaced by a stronger ones, but i believe traction bars may be as much if not more important...
i had my driveshaft straightened and reinforced my leaf spring to rear end junctions as a temporary fix until i fab up some traction bars, and have been ok so far.
driveshaft safety loops are probably not a bad idea, especially if your front u-joints decide to go...
oh and thanks for the input miwico
looks very familiar though...

only difference is the yoke is what broke in my case. i dont think the driveshafts are the problem, but rather the axle wrap putting too much stress on the u joints. im not saying the driveshaft couldnt be used to be replaced by a stronger ones, but i believe traction bars may be as much if not more important...
i had my driveshaft straightened and reinforced my leaf spring to rear end junctions as a temporary fix until i fab up some traction bars, and have been ok so far.
driveshaft safety loops are probably not a bad idea, especially if your front u-joints decide to go...
oh and thanks for the input miwico

-MiWiCo
Originally Posted by miwico
The F-150 wasn't meant to drag! What is up with this? Its a f.ckin pickup truck for Chr.st sake! Get a G.damn vette or something this is just silly! 

Perviously Screw2004





