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KYB Monomax shocks installed today

B177y

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2024 Lightning Pro SSV ER (131kWh battery) with max tow package. 56,300 miles.

I solicited opinions or experience about KYB shocks in this thread. I received a couple of recommendations from forum members based on their KYB installs in other vehicles, not Lightnings. The Eibach shocks were unavailable, so I went with the KYB Monomax front and rear shocks from Rockauto, $475 for all four shocks with WA tax and delivery.

When the installer at Strait Alignment in Port Angeles, WA looked under my truck to see what was up, he exclaimed "They're leaking!". I don't think he expected that my OE shocks were toast barely over 50,000 miles. Both fronts were blown and leaking, he said the rears were still good but based on the front he agreed that changing them was a good call. I re-used the original springs. No other other suspension parts changed other than the shocks.

Initial impression on my 25 minute 15 mile drive home is that the ride is much better than the two blown front shocks, no surprise there. Handling is back to feeling crisp and the bounce on overpass transitions is gone. The side to side wobble over patches and road construction is also gone. Everything feels taught and tight like it should.

I can't really remember what it felt like at delivery, over 56,000 miles ago. I do remember feeling like the Lightning had an incredible ride compared to the Mach-e California Route 1 trim that I traded for the Lightning. The Mach-e felt harsh after a two hour drive. My wife's Mach-e Premium has a nicer ride than my Cal Rt 1 did, but it is still a "sporty" ride more than a "luxury" ride. I would describe the new Monomax on the Lightning feeling like a half-ton truck "should" feel. Not floaty luxury like I seem to think the OE shocks felt like when new, but not harsh and jumpy like my 2001 F350 with leaf springs on all four corners felt. It was an enjoyable drive home from the shop with an obvious and noticeable difference from the blown OE shocks.

The old shocks likely transition to crap slowly so I never felt a transition to the poor ride, but the ride home with the new shocks is dramatic. I just started to notice the side to side wobble and extended bounce on road transitions with the OE shocks. The reports on the forum of other's shocks going bad around 50,000 miles clued me in and sure enough, mine were toast too. Add the shocks to your "high suspicion" list like the 12 volt battery at 3 years old. Around 50k, start paying attention to your shocks, look for leaks (wet spots on the tubes), just like at 3 years old, suspect that your 12 volt battery is going to die.

Overall, the KYB Monomax shocks seem like a fine alternative to OE Ford shocks. I was looking at the Eibach shocks which seem to be a popular mod or repair for the Lightning, but they are more expensive than the KYBs and seem to regularly be out of stock. I'll update this post as time goes on and miles start adding up to add some long-term good and bad of the KYBs. If you have any questions, feel free to ask.

Front shock, from driver side front:
Ford F-150 Lightning KYB Monomax shocks installed today PXL_20260812_231427031



Rear shock, from driver side rear behind the bed:
Ford F-150 Lightning KYB Monomax shocks installed today PXL_20260812_231404899
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potato

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Any chance you could update the post with part numbers? Any other bits and pieces needed?
 

DerMot

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I'm booked for new OEM shocks (front) on Friday... under warranty -- 25,000kms :(. Can't wait to feel the original ride again.
 
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B177y

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djryan13

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At 30k, one of my OEM leaked and replaced. I replaced under warranty and just replaced at 40k with Eibach all around. With rear Eibach springs making it overall much stiffer which helps my heavy load travel. It would be nice to know how these compare to Eibach. They are a little stiff when not weighted down.
Ford F-150 Lightning KYB Monomax shocks installed today IMG_3973
 
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B177y

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First commute on the new shocks, 36 miles / 45 minutes each way on 2-lane highway 45-55 mph with straights and sweeping turns.

My takeaway is.... Why the eff did I not notice how bad my OEM shocks were???

Because of the nature of slow deterioration of the OEMs, I never realized how poorly the truck suspension was behaving until I had my normal commute this morning with the new shocks. To me, the KYB Monomax shocks feel stiffer than OEM, but not obnoxious at all. It's exactly what I was looking for, a little stiffer and a little "sportier" than OEM. The Monomax's seem to provide both.

Based on my experience and others that have posted here about the early demise of the stock shocks, I would be comfortable recommending to check yours early and often. If in doubt, change them out! I'll recommend the KYB Monomax because that's what I have now and I like the ride they provide, but I'm sure any of the KYB or Eibach, or even a new set of Ford OEM will improve the ride and handling, ESPECIALLY if your shocks have failed like mine did.
 

DerMot

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First commute on the new shocks, 36 miles / 45 minutes each way on 2-lane highway 45-55 mph with straights and sweeping turns.

My takeaway is.... Why the eff did I not notice how bad my OEM shocks were???

Because of the nature of slow deterioration of the OEMs, I never realized how poorly the truck suspension was behaving until I had my normal commute this morning with the new shocks. To me, the KYB Monomax shocks feel stiffer than OEM, but not obnoxious at all. It's exactly what I was looking for, a little stiffer and a little "sportier" than OEM. The Monomax's seem to provide both.

Based on my experience and others that have posted here about the early demise of the stock shocks, I would be comfortable recommending to check yours early and often. If in doubt, change them out! I'll recommend the KYB Monomax because that's what I have now and I like the ride they provide, but I'm sure any of the KYB or Eibach, or even a new set of Ford OEM will improve the ride and handling, ESPECIALLY if your shocks have failed like mine did.
wait, are you in sales? As mentioned, tomorrow is the day I get new OEMs on the front... next will be exactly what you've done.
 

HaOsLsE

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bounce on overpass transitions? I have been noticing it has been pretty bouncy lately and I'm nearing 35k. I was just thinking it was the bad roads/length of the truck/etc. Now I'm thinking it could be these shocks.
 
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B177y

B177y

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bounce on overpass transitions? I have been noticing it has been pretty bouncy lately and I'm nearing 35k. I was just thinking it was the bad roads/length of the truck/etc. Now I'm thinking it could be these shocks.
Yup, new shocks got rid of that bounce. I thought the same as you, it comes on so slow you think the bounce is normal. It isn't.

Check for leaks on your front shocks, or just replace them. I wish I had done it sooner.
 

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B177y

B177y

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wait, are you in sales? As mentioned, tomorrow is the day I get new OEMs on the front... next will be exactly what you've done.
Haha.... Not in sales.

I will yell from the top of the mountain when I find something good though. I waited way too long to replace my shocks, I just thought the poor ride and bounce was due to the size of the truck like @HaOsLsE . The improvement with actual working suspension is SO. MUCH. BETTER.

Not affiliated with KYB or Rockauto, but if either wants to work out an arrangement, DM me 😆

Based on reactions to these suspension threads, KYB and Rockauto may see some sales increases.
 

DerMot

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Haha.... Not in sales.

I will yell from the top of the mountain when I find something good though. I waited way too long to replace my shocks, I just thought the poor ride and bounce was due to the size of the truck like @HaOsLsE . The improvement with actual working suspension is SO. MUCH. BETTER.

Not affiliated with KYB or Rockauto, but if either wants to work out an arrangement, DM me 😆

Based on reactions to these suspension threads, KYB and Rockauto may see some sales increases.
My video of bad shocks --
 
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B177y

B177y

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My video of bad shocks --
Nice work on the video!

I would say mine was behaving like the blue Platinum at the end of the video. Sustained bounce after a transition wide enough to involve both wheels. I was also getting a lot of side to side wobble on one-sided pavement imperfections. That side to side weakness also affected handling. Everything is much more confident feeling again with the suspension actually doing it's job.
 

HaOsLsE

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Geeze I bet that is my bounce and everything. That video is awesome. I dont think I've ever seen one taken like that. I immediately went to check Autozone and Oreilley's site for shocks, but they don't even have anything listed for our trucks yet. Guess it's probably the same as the ICE trucks, but I'll probably just get the part #'s from Rock Auto or see how much Ford wants to take from me.
 

DerMot

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Geeze I bet that is my bounce and everything. That video is awesome. I dont think I've ever seen one taken like that. I immediately went to check Autozone and Oreilley's site for shocks, but they don't even have anything listed for our trucks yet. Guess it's probably the same as the ICE trucks, but I'll probably just get the part #'s from Rock Auto or see how much Ford wants to take from me.
my son wasn't too happy that I mounted his go pro under my truck with tie wraps. :). The blue truck is mine...super bouncy.... should have it back today and we will see if that was the prob.
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