How Much Squat to Expect? - Ford Powerstroke Diesel Forum
General 6.7 Discussion (2017-2019) General 6.7 Discussion

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post #1 of 9 Old 04-28-2019, 08:10 PM Thread Starter
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How Much Squat to Expect?

I was wondering if someone with a SRW F-350 could tell me about how much squat they see with the pin weight of a 10,000# 5th wheel or GN hooked up. I have a ‘19 CCLB and am trying to get an idea what my hitch height is going to wind up being with about 2,000# setting over the axle. I know the spring rates but have no way of telling how far it goes down between the different stages.

I have about 600 pounds of fuel and tools up against the front of the bed and my 5th wheel will gross between 9k and 10k pounds.

Thanks!

2019 Silver Spruce Lariat CCLB SRW F-350 FX4
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post #2 of 9 Old 04-28-2019, 09:24 PM
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Do you have the top overload spring? If so it will sag just till
The rear of the overload spring touches the pad. About 2-3”

19 F450

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post #3 of 9 Old 04-29-2019, 04:17 AM
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I have a 2018 F350 SRW. I tow a 2017 Jayco 28.5 RSTS at around 10K weight. I have no suspension add ons and it doesnt appear to squat at all and the 2-3 inches seems about right. It goes down a few inches when loaded but rides level and handles great. I have 5000+ miles of towing with this configuration in the last year.
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post #4 of 9 Old 04-29-2019, 08:04 AM
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My 2018 F350 squats ~2.5" with my 10,500# 5th wheel. I measured this on Easter weekend when I pulled the 5th wheel for the first time. I previously weighed the trailer with my 03 7.3 and the pin weight was around 1600#'s.

My ford history:
99 F350 7.3L CCLB 4X4 Superchips chip
05 6.blow F250 CCSB 4X4 Superchips tuner
02 7.3L F350 XCLB Dually
03 7.3L CCSB 4X4 Edge CTS
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post #5 of 9 Old 04-29-2019, 07:17 PM
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Here is mine with 2500# hitch weight.
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post #6 of 9 Old 04-30-2019, 04:58 PM Thread Starter
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Thanks for all the great input! As it sets right now I’m 3” off the front and 2.5” off the back pad of the upper overload spring. It looks like I can expect mine to settle the same 2 or 3 inches you guys are seeing.

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post #7 of 9 Old 04-30-2019, 09:03 PM
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Quote:
Originally Posted by Sport45 View Post
Thanks for all the great input! As it sets right now I’m 3” off the front and 2.5” off the back pad of the upper overload spring. It looks like I can expect mine to settle the same 2 or 3 inches you guys are seeing.
Nothing wrong here. Exactly As how ford designed it. Sag is not A bad thing. Some guys throw $200 airbags on a multi million dollar engineered/designed/tested suspension system, which blows my mind. Run it as is and enjoy that badest tow animal ever made!!

19 F450

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post #8 of 9 Old 05-01-2019, 08:07 AM Thread Starter
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“Squat” and “sag” may have been wrong words for me to use. I was driving pickups before they were fashionable. I expect them to have a high in the back rake when empty and a “setting on the axle” look when overloaded. That’s just the way springs work. It sounds like mine will pretty much settle to “level” with my predicted load. If it’s a bit above or below level is no big deal. All I have to do now is figure the proper hitch height and pin box setting to get the 5er to tow level once we choose one.

I want to thank all the responders for the great input!

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post #9 of 9 Old 05-05-2019, 11:39 AM
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Even tho I have a dually, I still added the air bags to my truck to help with pin weight. The pin weight on my DRV fiver is 4300 lbs. and I do not like to bounce when hitting the dips on the highway. The airbags cost almost 400 bucks and I installed them yesterday. Took me about 4 hours. The install was not fun. I am not one for working on vehicles, but it did save me 2 or 300 bucks installing myself.
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