FORD TTB AXLE PIVOT BRACKET REPLACEMENT

Written by Chris “1 EYE”
2008

(DISCLAIMER)
THESE REPAIRS I HAVE DONE ON MY OWN TRUCK I ACCEPT NOR TAKE NO RESPONSIBILITY FOR DAMAGE DONE TO YOU OR YOUR VEHICLE. THIS IS JUST A HELPFUL GUIDE THX.

TOOLS NEEDED: “*” ARE THE TOOLS NOT NEEDED BUT WHAT I USED

* ¾ to ½ Adapter
* ¾ Ratchet
* ¾ Breaker Bar
* ¾ Extension
* ½ Torque Wrench Digital “Range 25ft-250ft lbs”
* Magnetic Parts Tray
* Gloves
* Goggles “EYE PROTECTION”
* Creeper
* 15 mm Ratchet Combo Wrench
* 18 mm Ratchet Combo Wrench
* 21 mm Ratchet Combo Wrench
Rear Tire Chalks
½ Torque Wrench
18mm ½ Socket deep well
21mm ½ Socket deep well
½ Ratchet
½ Extension
18mm Deep Well Socket
21mm Deep Well socket
15 mm Combo Wrench
18 mm Combo Wrench
21 mm Combo Wrench

 

TORQUE SPECS:

AXLE PIVOT BRACKET BOLTS     125-130 LBS
AXLE EYE BOLT BOTTOM BRACKET BOLTS    120-150 LBS

 

NEW BRACKET PART #

F4TZ-3B178-A Cost $74.80 after taxes

 

REASONS FOR REPAIR:

While driving down the highway my truck did something commonly referred to as the “DEATH WOBBLE”, it happened to the truck after hitting a pothole at about 57 mph. I hit the then I started to feel the front of the truck shake just a bit at first, then as I was trying to turn right onto another highway the truck wobbled so hard and came on so quick that I didn’t have time to get on the shoulder I was in the middle lane. This wobble had other cars getting in the far lanes to pass me and looking at me as if the truck was going to roll, and yes I really did myself think it was going to roll, so I applied the brakes and tried to slow myself down that made it worst, then I sped up a little bit while turning slightly to the left this cleared it up. Now I know the real meaning of white knuckle scared. I then got to the shoulder and exited at the next off ramp then pulled into a parking lot and gave the truck a good 360 I looked in the engine compartment, wheels, both sides, rear, front and even under to the best of my ability with the flashlight, right off I couldn’t see any damage. So I limped home on surface streets. The next morning I power washed the underbody and let it dry, and then I started to look over the truck again this time I found the issue my wobble was caused by a broken axle pivot bracket.

 

REPLACEMENT:

Clean entire suspension system and inspect all other parts including the bracket you are replacing. Place tire chalks behind both tires and set parking brake. Use your shop jack and place it under the front pumpkin, and start to jack up slowly, you just need the river’s side tire about ½” off the ground to take the pressure of the axle eye bolt, this is the 1st bolt you will remove from the axle bracket. Before you get under the truck shake the truck while its up on the jack to make sure the truck is secure and safe to get under.

Use your 18mm deep well socket with your ½ breaker bar an ½, ½ extension. “REMEMBER RIGHTY TIGHTY LEFTY LOOSEY” this bolt has a nut on the back side of the bolt that you will use your 21mm combination wrench on. After you have the bolt broken free replace the ½ breaker bar with your ½ ratchet and continue to remove the nut from the axle bracket eye rear. And place the nut on your magnetic tray.

In order to get the bolt out of the axle eye, slowly lower the jack while looking at the bolt head “I used my combo wrench so that I could see it move better from this angle at the jack”, you will see the bolt move upward when you see it level out the pressure should be off the bolt, stop the jack at this point and simply remove the bolt. Again at this point also place the bolt into the magnetic tray. If you don’t have a magnetic tray put your parts out of your traffic area, loosing parts, nuts and bolts suck. Now slowly lower the jack to the ground, you will see the driver side axle lower as you do this, make sure you don’t move or bump the jack. At this point you are now ready to start working on the rest of the bracket bolts. Also at this point you should check your bushing and replace if worn or damaged.

Now you can start working on the two front axle bracket nuts. Use your ½ breaker bar with your 21mm deep well socket and break both nuts free, these bolts are in a bracket so you can just ratchet these nuts off after you break the nuts free. After you have the nuts off push the bolts through the axle bracket you will notice that both bolts are in a bracket and will move at the same time, so remove and inspect all these parts for ware and damage, replace as needed. Place these nuts and bolts with bracket on your magnetic tray.

As there are only two bolts remaining, at the top of the axle bracket you can get to there freely from here. Take your ½ breaker bar and use your 21mm socket on the bottom nuts, and a 15mm combo wrench on the top of the bolts, at this point be very careful with your combo wrench in this area you are very close to both the tranny, and oil coolant lines. Hold your 15mm combo wrench box end on the bolt head study while using your ½ ratchet and 21mm socket to loosen the nuts and remove them both, again inspect the nuts and bolts for worn or damage replace as needed. Now you can freely remove the axle pivot bracket from the truck.

Here are some pics of the parts side by side, the yellow drop bracket is a lift bracket that I will be using on another project its just in the pics to show how much stronger it is compared to the stock part.

This is the pic with the new bracket installed.