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S&B Body Mount Replacement How-To

13158 Views 35 Replies 12 Participants Last post by  powerstrokeshellback
5
Fellas,

This thread will serve as my how-to on swapping the crummy stock body mounts for a quality replacement such as the S&B. I opted for these mounts over the stock and "daystar" mounts because I wanted to never have to deal with the mounts again. Daystar mounts have miles of bad reviews pertaining to poor ride, poor fitment, and creating squeaking noises when the body flexes. I suppose they'd work fine for a fleet truck. The reason why I bit the bullet and paid the hefty price tag of the S&B mounts can be attributed to the reviews out there of better ride quality over OEM, great fitment, and silicone design (which will not rot like OEM).

Project review:
So to tackle this project (all 8 mounts) took me about 8 hours. About 7 of them were getting the old bolts out, and 1 hour installing the new mounts and torquing the body down. Whatever threadlocker Ford used, that is some great stuff because every bolt gave me absolute hell. I broke the sheetmetal cages on the front two radiator mount bolts using a breaker bar only and that is what held up the project the most. In order to catch the nut spinning freely in the body, I had to buy a 7/8" sacrificial wrench. For the driver's side, heating the wrench up and bending it to snake it through the cavity to catch the nut was enough. For the passenger side, too much was in the way and I had to cut the wrench in half with a grinder to get it in.
I'm not responsible for your actions or incidents. There are dangers involved when installing these mounts yourself if you do not have the proper tools and proper precautions are not taken. This thread is to serve an informational purpose only and I am in no way shape or form liable for anyone who attempts this process.

Helpful tips:
When doing the mounts directly under the floor panels of the first row, peel the carpet back and remove the rubber plug in the sheetmetal from inside the cab. You'll see the nut that the bolt threads into. I put the torch directly on that nut from inside the cab (be careful not to burn your truck down), and those two bolts came out with ease.
The factory bolt heads are 15MM and hex shape. Don't use a 12 point socket like I did..many headaches on one bolt. Nut sizes are 7/8".
Use a long 1/2" drive breaker bar and a 10" extension to allow yourself to get enough torque to overcome the rust and threadlocker. Ample lube was used in my situation, sometimes it helped and sometimes it didn't.
The body will realign when you have all the mounts in and fastened down. I lost my mind when I had one side done and the other still factory and the body looked like it shifted to the passenger side about 3".

Process:

1. Loosen every bolt as much as you can. WD-40 and heat are your friends here. Pick which side you want to do first and then drop those bolts out all of the way.
2. Remove the lower mounts from the mounting tab on the frame. To do so, grab the lower mount and rotate and twist at a slight angle until you feel it break free of the tabs that hold it together inside the upper mount.
3. Raise the cab. I won't tell you how to do this because there are risks involved, and I do not want to be liable for somebody making a mistake. Installing yourself also voids the S&B lifetime warranty, btw. But, raise the cab just enough to get the upper mount slid out.
4. Swap the old upper mounts for the new ones. Carefully let the cab back down.
5. Install the new S&B lower mounts to the frame tab. Lubricate the new bolts very well and thread them in until they catch.
6. Repeat process for other side.
7. Once all mounts are replaced, torque every bolt to 78 ft-lb. Do so in a criss-cross fashion. Double check torque on each bolt after tightening the final bolt.
8. Re-torque all bolts after a few days to a week from installation.
9. Check all body lines and ensure they all fall where they need to be. For me, once I got everything cinched down it was factory perfect as far as the body lines go.

That's it! It was really a very simple job to do. It was just a complete pain due to the bolts that refused to come loose on my vehicle. Youtube has some great how-to's on the subject if you want to learn more. Attached are some images of the old mounts, new mounts, and mounts installed. I will admit that I cheated when torquing the new bolts down, I used a 1/2" impact and air to cinch the bolts down, but it was almost midnight and I had enough of the project lol. But using an impact to remove the old bolts is a horrible idea due to how seized they were in there. There is only a sheetmetal cage holding the nut in place, and once you break it the project transforms from quick and easy to horrendous.

The new mounts ride a heck of a lot better than the old clapped out ones. Going through dips and speed bumps that I used to slow down to a crawl for are no longer an issue for the truck. The body feels more firmly mounted and more responsive (or lack of response maybe) to the road. I'm happy with the turnout of the project.

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2016 with 90 k and you will have some crumbling for sure. When i spoke to my service writer about this he indicated that they had to change the manufacturing process of the OEM mounts due to EPA or some other government agency due to the chemicals or process or some happy horse **** . . The S&B are silicone and lifetime warranty so they shouldnt ever have to be changed out again
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Thanks guys. This is great stuff from this forum and has helped me do a few things I didn't think I could on my own on my last two trucks.
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"EPA the reason the body mounts fail" lol my ash ,, nice try ford
they just screwed up or cheaped out
i have never seen bodymounts fall apart like the super duty the jounce stops do the same
2015 w/199k when I noticed mine blowing out a tad. I got two that are done for sure, the S&B ones will be going in all around.
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Just to give S&B another kudos, someone from their customer service side just called me to follow-up and see how the installation of their mounts went, and how the ride quality felt. Definitely impressed by their interest in customer satisfaction. Seems like they really care about their customers getting what they pay for...
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I'm also in need of a mount change. The right rear is completely metal on metal. Undecided if I'm going to attempt it myself. Can anyone advise if this improved the ride of the truck? Sometimes I'm blown away at just how bad my truck rides. I believe only 1 mount is completely gone but the others are crumbling messes. TIA.
It will change the ride. “Better “ is subjective.
S&B is a little softer than aged OEM. Particularly if metal on metal.
This is a 4 hr “do it once” kind of job; so spring for the S&B…
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If you’re metal on metal, then yes it’ll definitely improve the ride. It should take about 4 hours, but be ready for a whole day if the old bolts/mounts fight you like mine did…
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2012 F350 Crew Cab - My experience on the install - 1) Heat up each bolt prior to removal with a torch for 1 minute. 2) Be prepared to workout your arms - take your time and just keep pulling the socket/break-over around. 3) I used a bottle jack with a 4x4 piece of wood situated under the cab edge to lift the cab. 4) Some of the lower pieces may seem a little stubborn coming out. Hit it a few times with a mini sledgehammer and prying and wiggling it. Soon, it will just fall loose. 5) When you go to install the new bolts, if you meet heavy resistance early on, there's probably some residual Loctite left from the previous bolts still in the threads of the cage nuts. Back the new bolt back out and you probably see a small amount of the Loctite dust fall out. Tap the bottom side of the new mount and little more may dislodge. The bolt going back in should not be as hard to get installed. It doesn't just spin in - but you'll know when it's time to torque it. 6) Do not use an impact to install either (just like on the removal). 7) Recheck your torques after you've driven it around a bit (on the same day so as to not disturb the Loctite setting up). 8) I did not find the front ones any more difficult than the others. Just heat the bolts as I stated in #1. I managed the job in 4 hours, taking my time.
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did yall really have to take the rear seat out? Crew cab short bed..
did yall really have to take the rear seat out? Crew cab short bed..
Not at all. You just have to remove the factory bottle-jack & lug wrench, out of their mount on the floor, to access the top of the bolt on the passenger side. On the driver side I don't recall anything in the way, but definitely no seat removal required.
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did yall really have to take the rear seat out? Crew cab short bed..
Depends on if "yalls" time is free or on the clock. :geek:
Depends on if "yalls" time is free or on the clock. :geek:
I'm just reading the directions. Removing the rear seat caught me off guard.
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I was a little peeved when I noticed the dealer sliced the carpet to access the bolts instead of removing the seats , trim and carpet ,, i got over it
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Does the back of your rear seat fold down? Maybe it differs between years, but on my 2015 there was enough space to access the bolt head once the back of the seat was folded forward. Also recall the carpet was either pre-cut, or there was a plastic cover over the bolt, that allowed access without cutting the carpet.
Back seat folds forward. I went with the daystar kit. Now I just need a free weekend to knock it out. Doesn't sound like too bad of a job.
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