Does this look right? Axle shift
Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
My 2017 OEM Service Manual states:
Tighten the new U-bolt nuts in a cross pattern in 4 stages.
F450/550
SRW Vehicles:
Tighten the new U-bolt nuts in a cross pattern in 4 stages.
F450/550
- Stage 1: 74 lb.ft (100 Nm)
- Stage 2: 148 lb.ft (200 Nm)
- Stage 3: 221 lb.ft (300 Nm)
- Stage 4: 295 lb.ft (400 Nm)
SRW Vehicles:
- Stage 1: 48 lb.ft (65 Nm)
- Stage 2: 96 lb.ft (130 Nm)
- Stage 3: 148 lb.ft (200 Nm)
- Stage 4: 195 lb.ft (265 Nm)
- Stage 1: 74 lb.ft (100 Nm)
- Stage 2: 148 lb.ft (200 Nm)
- Stage 3: 221 lb.ft (300 Nm)
- Stage 4: 295 lb.ft (400 Nm)
There it is again.
Hotshot
Joined: Jun 2003
Posts: 12,340
Likes: 4,361
From: SW VA
Legal mumbo-jumbo to cover their butts if something were to happen. Bed bolts are TTY and "one use only", yet every Line-X and Rhino Liner shop across the country reuses the stock bolts without issue. I've reused head bolts on engine rebuilds without issue. I've reused u-bolts on many other trucks without issue, flywheel bolts, clutch bolts, etc...
Cargo Master
Joined: Oct 2019
Posts: 2,831
Likes: 1,187
From: Southeast MO
Legal mumbo-jumbo to cover their butts if something were to happen. Bed bolts are TTY and "one use only", yet every Line-X and Rhino Liner shop across the country reuses the stock bolts without issue. I've reused head bolts on engine rebuilds without issue. I've reused u-bolts on many other trucks without issue, flywheel bolts, clutch bolts, etc...
Super Moderator
Joined: Aug 2008
Posts: 37,375
Likes: 1,861
From: Frederick, MD
I have reused them in the past. Not a big deal. New bolts preferred but never went out of my way.
I have seen one or two that came completely out and I had to crow bar the axle and leaf springs about a foot.
I have seen one or two that came completely out and I had to crow bar the axle and leaf springs about a foot.
Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
Still dumbfounded about the recommendations here to take apart the rear suspension on what was described to be in a hard brake event.
This isn't a good way to diagnose problems, any mechanic worth their salt would concur.
Should we recommend to others to take apart the 6.7 manifolds, valve covers and remove injectors because they heard a ticking noise?
This isn't a good way to diagnose problems, any mechanic worth their salt would concur.
Should we recommend to others to take apart the 6.7 manifolds, valve covers and remove injectors because they heard a ticking noise?
Hotshot
Joined: Jul 2013
Posts: 14,256
Likes: 2,181
Still dumbfounded about the recommendations here to take apart the rear suspension on what was described to be in a hard brake event.
This isn't a good way to diagnose problems, any mechanic worth their salt would concur.
Should we recommend to others to take apart the 6.7 manifolds, valve covers and remove injectors because they heard a ticking noise?
This isn't a good way to diagnose problems, any mechanic worth their salt would concur.
Should we recommend to others to take apart the 6.7 manifolds, valve covers and remove injectors because they heard a ticking noise?
me personally...if i heard a pop while towing and looked and found evidence of axle geometry change...it would be time to call road side and have some warranty work done.
proceed with caution
Hotshot
Joined: Jul 2013
Posts: 14,256
Likes: 2,181
I disassembled my 2010 to install some traction bars and every componet either has a female pin hole or a male pin. There’s more invoked here than just a leaf spring thru bolt.
my comments remain.
proceed with caution
my comments remain.
proceed with caution
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Hotshot
Joined: Oct 2006
Posts: 10,146
Likes: 7,971
From: Texas
Still dumbfounded about the recommendations here to take apart the rear suspension on what was described to be in a hard brake event.
This isn't a good way to diagnose problems, any mechanic worth their salt would concur.
Should we recommend to others to take apart the 6.7 manifolds, valve covers and remove injectors because they heard a ticking noise?
This isn't a good way to diagnose problems, any mechanic worth their salt would concur.
Should we recommend to others to take apart the 6.7 manifolds, valve covers and remove injectors because they heard a ticking noise?
Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
be dumbfounded all you want...........the original picture that the OP posted leaves the *APPEAREANCE* of the axle having moved. The title of the thread also leads a person this way. An axle that has shifted and sheared the center bolt requires disassembly to repair it. I am dumbfounded that one can come on here mid-stream and spew bull**** that he knows all.
Fleet Mechanic
Joined: Nov 2006
Posts: 1,664
Likes: 219
From: Northwest
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