Tremor Rear Shock Options

[johncode]

Just placed my order from Stage3. Expected date to have back in stock is 12/06, hopefully they will.

21-25 F150 4WD Fox 2.0 Snap Ring IFP Front Struts 985-62-013-2

www.stage3motorsports.com

Other stores carry them

 

[Nomad]

True, but I checked with 4WP’s & LTW Motorsports & both were going to have to order too, so went the cheapest route to offset cost of the alignment. Bought my own Christmas present

 

[ksheldon63]

Other stores carry them

Why do you think they say you won't gain any lift on a Tremor? I read all your posts and you confirmed 2nd from highest notch with stock spring gained you just under 2" right?

 

[johncode]

Why do you think they say you won't gain any lift on a Tremor? I read all your posts and you confirmed 2nd from highest notch with stock spring gained you just under 2" right?
View attachment 14798

They are probably going by the other kits notes. They haven’t installed any struts on Tremors. I spoke with an engineer(not sales) at Fox and he said they fit the Tremor. I got 2.5 on highest notch and a hair under 2 on second from highest. Fox did say the full coilovers 2.0 aren’t recommended because you get less height and restricted travel.

 

[ksheldon63]

They are probably going by the other kits notes. They haven’t installed any struts on Tremors. I spoke with an engineer(not sales) at Fox and he said they fit the Tremor. I got 2.5 on highest notch and a hair under 2 on second from highest. Fox did say the full coilovers 2.0 aren’t recommended because you get less height and restricted travel.

Excellent thanks for the reassurance. Did you ever test full droop and contact against your UCA's?
I'm trying to rifle between all the options on here. You still happy with the rear 2.0?

 

[johncode]

Excellent thanks for the reassurance. Did you ever test full droop and contact against your UCA's?
I'm trying to rifle between all the options on here. You still happy with the rear 2.0?

Yes, but I had SPC UCAs put on. Unsure about factory UCA. I still like the rears. I would probably say they are better than the front.

 

[ksheldon63]

Yes, but I had SPC UCAs put on. Unsure about factory UCA. I still like the rears. I would probably say they are better than the front.

Better than the front... But do you also think the front are better than stock. When you're describing how they feel on the previous page are you describing both front and rear?

 

[johncode]

Better than the front... But do you also think the front are better than stock. When you're describing how they feel on the previous page are you describing both front and rear?

The front are better than stock. The rear being better is based jumping a few curbs. All four were installed at the same time.

 

[Bullitt1841]

I posted this in the rear block removal thread, but figured I'd get more traction in this thread. I need to figure out which rear shock lengths to order with rear blocks removed: https://www.f150tremor.com/threads/removal-of-rear-blocks.463/post-33000

I just ordered everything to complete the rear block removal (2WD u-bolts and new nuts). If I were to upgrade my rear shocks at some point, would it make sense to install shocks meant for a 2WD F-150?

Bilstein shows 3 different P/N's for 5100 shocks in 4WD, and a 4th completely different P/N for 2WD. The 4WD shocks state the difference is for how much lift is in the rear: 0" - 1" (P/N 33-253190), 2" (P/N 33-318950), or 4" (P/N 33-318967). All 4 P/N's have different collapsed and extended lengths (which makes sense).

I almost feel like the 4WD P/N's are for the thinner blocks (0" - 1" of lift), the thicker blocks (2" of lift), and possibly an add-a-leaf (4" of lift).

I had to look up a 2022 Lariat 4WD because Tremors show no compatible parts: https://cart.bilsteinus.com/results...En=3669711516854242832&Bo=2688952089253976505

Thanks in advance!

 

[FaKtor34]

With the blocks removed I would shoot for around 29 extended and 17-18 collapsed, you might even be able to do a 16 collapsed but depending on tire size that might push you into the fender to badly, I would opt for a longer collapsed shock length and if needed extend the bump stop. Of course this is only my opinion and what I would lean towards doing if I opted for that route, not saying it's the right way.

 

[Bullitt1841]

With the blocks removed I would shoot for around 29 extended and 17-18 collapsed, you might even be able to do a 16 collapsed but depending on tire size that might push you into the fender to badly, I would opt for a longer collapsed shock length and if needed extend the bump stop. Of course this is only my opinion and what I would lean towards doing if I opted for that route, not saying it's the right way.

Thanks! So I guess my next question (I think I know the answer but wanted to confirm) is what is safer: installing a shock that's roughly 1" too short or 1" too long? Without physically measuring, I'm just estimating which lengths to go with. Since the shocks are not mounted perfectly vertically, it's not a 1:1 ratio of block thickness to shock travel.

My guess is that having a shock that's slightly too long is safer because the factory bump stop should prevent the shock from bottoming out. If it's too short, then it could "top out" whenever the tires are off the ground. Having the tires off the ground is much more likely for me (on a lift, etc) since I don't plan on much off-roading, and definitely no rock crawling. I could always add air bags or Timbren kit if I ever tow.

 

[FaKtor34]

Thanks! So I guess my next question (I think I know the answer but wanted to confirm) is what is safer: installing a shock that's roughly 1" too short or 1" too long? Without physically measuring, I'm just estimating which lengths to go with. Since the shocks are not mounted perfectly vertically, it's not a 1:1 ratio of block thickness to shock travel.

My guess is that having a shock that's slightly too long is safer because the factory bump stop should prevent the shock from bottoming out. If it's too short, then it could "top out" whenever the tires are off the ground. Having the tires off the ground is much more likely for me (on a lift, etc) since I don't plan on much off-roading, and definitely no rock crawling. I could always add air bags or Timbren kit if I ever tow.

Exactly!

 

[Apollo20]

Lowered the front struts one notch which is what Fox recommends and it feels way better. The shop that installed it said my measurements were off since my driveway is sloped a little. They said the top notch gained 2 5/8 inches and the second to top notch gained 1 7/8 inches. Sorry for the bad measurements in the earlier post. I checked on flat ground and I show 2 inches as well at the second to top notch.

Pics at lower setting :
View attachment 13273
View attachment 13274

Did fox say exactly why they recommend the notch setting you chose? Just the angles ?

 

[johncode]

Did fox say exactly why they recommend the notch setting you chose? Just the angles ?

The engineer I talked to said ride quality. Said with the Tremor’s taller spring it would compress more and be stiffer. My experience was it was a tad bit stiffer.

 

[Apollo20]

The engineer I talked to said ride quality. Said with the Tremor’s taller spring it would compress more and be stiffer. My experience was it was a tad bit stiffer.

Thank you for this and your continued input! Ben racking my brain on which notch to pick. Just can’t decide ! Your pics helped but hard to tell because you have weight in the bed (tires).

 

[johncode]

Thank you for this and your continued input! Ben racking my brain on which notch to pick. Just can’t decide ! Your pics helped but hard to tell because you have weight in the bed (tires).

Don’t think 200lbs spread out dropped it too much

 

[USMC_BamBam]

Looking around on line, I am seeing the Fox Shock #98224828 advertised with an extended length of 31" and compressed length of 18.2". Where did the 18.95" number come from?

If it really turns out to be 18.2" compressed length compared to 18.1" of the factory Tremor shock... would the bump spacer even be needed??

 

[mashir]

Looking around on line, I am seeing the Fox Shock #98224828 advertised with an extended length of 31" and compressed length of 18.2". Where did the 18.95" number come from?

If it really turns out to be 18.2" compressed length compared to 18.1" of the factory Tremor shock... would the bump spacer even be needed??

I’d really like to use this shock or another fox rear, so I’m curious about this too

 

[FaKtor34]

If those numbers are good then you shouldn't have much to worry about it, in all honesty you would only need to worry about that if you do some major offroading, as in high speed or high articulation with weight. For the average person meaning the majority of the owners they will never need to worry about it.

 

[Kargawd]