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Old 07-05-2019, 11:17 AM
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Falcon 3.3 shocks on 2.5 lift?

I currently have the teraflex 2.5 coil lift with 1/2 inch coil spacers and 33’s Im considering ordering the falcon 3.3 shocks for 2.5 to 3.5 lift. I’m concerned about the shock length on the 3.3’s vs the 9550 teraflex shocks I’m currently running. I have the bump stop extensions on the front but no coil retainers and no bump stops on rear and bottom coil retainers only. Do I need to worry about bottoming shock out or do I need to get coil retainers to run the 3.3’s? I’ve called and asked a few vendors about what exactly I need to do to be able to run these shocks but have gotten different responses across the board unfortunately. Figure it’s time to ask the experts here on the forum.

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Old 07-05-2019, 11:21 AM   #2
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You need more lift imo. I have 3.5" lift and they are just right. Any less lift and the shock body length would be a problem.

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Old 07-05-2019, 11:59 AM   #3
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i run 3.1 falcons 0-2 on my 2" mopar lift and wish I would have went with the 2.5-3.5 length 3.1 shocks. I am actually running a rear shock spacers which makes mine about equal to the longer ones and no issues whatsoever. it is easy to check tho just drop the axle with the lower shock mounts undone and see where your at. I am only running 1" of bumpstops front and rear and when fully stuffed I still have some shaft showing so running the longer shocks I would just add another 1" of bumpstops and would be golden.
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Old 07-05-2019, 12:07 PM
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I was thinking I might need more lift but I am sitting at 3 inches total so really not that much difference between 3.5 and 3. I have the bump stop extensions from teraflex in the front and they are pretty long. I spoke with Dennis at Tera flex and we both looked at my Jeep and he said I could probably take the extensions out and run a smaller bump stop in the front but that was before I decided to go with the 3.3’s.
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Old 07-05-2019, 01:21 PM   #5
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I've been running the Falcon 3.3's for about a year now with no issues. I have a 2.5 Terraflex lift with 3 inch Terraflex Alpine Coils in the rear.

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Old 07-05-2019, 04:44 PM
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I've been running the Falcon 3.3's for about a year now with no issues. I have a 2.5 Terraflex lift with 3 inch Terraflex Alpine Coils in the rear.

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Just curious how much bump stop do you have front and rear and how much shock is available when the rear is fully compressed?
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Old 07-05-2019, 08:19 PM   #7
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I have an idea! You could call Teraflex!
Now, for the little less smart answer. I have the 3.1’s on my jeep with 3.5” lift. You will get plenty of droop with the shocks. The up travel should have bumpstops, but according to what i was told by Teraflex, the Falcon shocks don’t need bumpstops or limiting straps to Prevent damage.
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Old 07-05-2019, 09:31 PM   #8
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Clayton 2.5" lift with Falcon 3.3 2.5-3.5.

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Old 07-05-2019, 10:43 PM
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I have an idea! You could call Teraflex!
Now, for the little less smart answer. I have the 3.1’s on my jeep with 3.5” lift. You will get plenty of droop with the shocks. The up travel should have bumpstops, but according to what i was told by Teraflex, the Falcon shocks don’t need bumpstops or limiting straps to Prevent damage.
I was waiting for the smart one in the bunch! 😁 I tried to ask teraflex and they said I should be ok but recommend checking the clearance after shocks were installed. Just looking for real world experience to see if anyone had any issues I should keep a eye out for. I wouldn’t worry damaging the shock at full droop but bottoming shock out on the compression stroke could definitely damage the shock or break the mount. Looking for maximum articulation but still keeping the same height.
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Old 07-06-2019, 11:25 AM   #10
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The problem is spring free length. The TF 2.5 springs are short. With the 3.3's, the rear springs will fall out at full droop. Yes, I have direct experience with this. TF says to do it, you need retainers and you need to run their top bushing that keeps the spring from falling out.

You also need to run 2" bump stops front and rear to protect the shocks. That's fine if you have tires big enough to need those bump stops. If not, I would use the 0-2 3.3's and drop down to 1" bump stops front and rear.

So, what size tires and what fenders are you running?
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Old 07-07-2019, 10:00 AM
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The problem is spring free length. The TF 2.5 springs are short. With the 3.3's, the rear springs will fall out at full droop. Yes, I have direct experience with this. TF says to do it, you need retainers and you need to run their top bushing that keeps the spring from falling out.

You also need to run 2" bump stops front and rear to protect the shocks. That's fine if you have tires big enough to need those bump stops. If not, I would use the 0-2 3.3's and drop down to 1" bump stops front and rear.

So, what size tires and what fenders are you running?
Stock fenders on 33’s. I have the Teraflex bump stops / bump stop extension in the front that came with my lift. I already purchased the shocks but haven’t received them yet.
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Old 07-07-2019, 05:27 PM   #12
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Stock fenders on 33s. I have the Teraflex bump stops / bump stop extension in the front that came with my lift. I already purchased the shocks but havent received them yet.
The TF bump stop extensions are too long for 33s, but with those shocks you might as well leave them in. You also need 2 rear bump stops... Rough Country has an inexpensive set. I would take it to a quality 4x4 shop and have them install some limit straps on the rear.
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Old 07-07-2019, 05:50 PM
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Stock fenders on 33’s. I have the Teraflex bump stops / bump stop extension in the front that came with my lift. I already purchased the shocks but haven’t received them yet.
The TF bump stop extensions are too long for 33’s, but with those shocks you might as well leave them in. You also need 2” rear bump stops... Rough Country has an inexpensive set. I would take it to a quality 4x4 shop and have them install some limit straps on the rear.
Yea I had 4 wheel parts install the lift and that’s what they put in for the front. Dennis from teraflex was down here a couple weeks ago and told me pretty much the same thing “I didn’t need that much bump stop in the front.” I was thing about installing upper spring retainers in the rear and lower spring retainers in the front. So the springs don’t fall out when I’m out on the trails. I just measured the bump stop on the rear and it looks like I’ll be fine as far as that goes. Kinda confusing when the falcon shocks have a set for 0-2 or 2.5-3.5 inch lift I figured I should be good but that extra inch had me concerned.
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Old 07-07-2019, 07:34 PM   #14
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Yea I had 4 wheel parts install the lift and that’s what they put in for the front. Dennis from teraflex was down here a couple weeks ago and told me pretty much the same thing “I didn’t need that much bump stop in the front.” I was thing about installing upper spring retainers in the rear and lower spring retainers in the front. So the springs don’t fall out when I’m out on the trails. I just measured the bump stop on the rear and it looks like I’ll be fine as far as that goes. Kinda confusing when the falcon shocks have a set for 0-2 or 2.5-3.5 inch lift I figured I should be good but that extra inch had me concerned.
Yeah, TF is ultra conservative with their 2.5 and its bump stopped for 35’s and factory fenders, which is way more than is needed for the 9550 shocks.

You might consider adding 1/2” coil spacers all around too. That will help keep the springs in. In my opinion, those shocks should say 3” to 4” lifts.... What do you have for caster correction?

Edit: you mentioned in your original post that you didn’t have rear bump stops added?
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Old 07-07-2019, 07:46 PM
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Yea I had 4 wheel parts install the lift and that’s what they put in for the front. Dennis from teraflex was down here a couple weeks ago and told me pretty much the same thing “I didn’t need that much bump stop in the front.” I was thing about installing upper spring retainers in the rear and lower spring retainers in the front. So the springs don’t fall out when I’m out on the trails. I just measured the bump stop on the rear and it looks like I’ll be fine as far as that goes. Kinda confusing when the falcon shocks have a set for 0-2 or 2.5-3.5 inch lift I figured I should be good but that extra inch had me concerned.
Yeah, TF is ultra conservative with their 2.5 and its bump stopped for 35’s and factory fenders, which is way more than is needed for the 9550 shocks.

You might consider adding 1/2” coil spacers all around too. That will help keep the springs in. In my opinion, those shocks should say 3” to 4” lifts.... What do you have for caster correction?
I do have 1/2 coil spacers in the front due to heavy bumper and winch so looks like I might need to add the spacer in the rear also. I have the alpine adjustable LCA’s for castor correction.
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Old 07-07-2019, 08:25 PM
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Yea I had 4 wheel parts install the lift and that’s what they put in for the front. Dennis from teraflex was down here a couple weeks ago and told me pretty much the same thing “I didn’t need that much bump stop in the front.” I was thing about installing upper spring retainers in the rear and lower spring retainers in the front. So the springs don’t fall out when I’m out on the trails. I just measured the bump stop on the rear and it looks like I’ll be fine as far as that goes. Kinda confusing when the falcon shocks have a set for 0-2 or 2.5-3.5 inch lift I figured I should be good but that extra inch had me concerned.
Yeah, TF is ultra conservative with their 2.5 and its bump stopped for 35’s and factory fenders, which is way more than is needed for the 9550 shocks.

You might consider adding 1/2” coil spacers all around too. That will help keep the springs in. In my opinion, those shocks should say 3” to 4” lifts.... What do you have for caster correction?

Edit: you mentioned in your original post that you didn’t have rear bump stops added?
I didn’t think I had rear bump stops but I checked and do have the teraflex bump stops that come with the lift installed.
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Old 07-18-2019, 12:21 AM   #17
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I'm running 3.3s on 2.5 Metalcloak springs. No spring retainers, 2" bump stops. Springs don't unsit at full extension. I suggest you buy the shocks and then test it out. If it doesn't work right away, there are ways to remedy it...with some more money usually. Personally, I had to trim the auto tranny skid plate as the stock front driveshaft would hit it when front driver wheel would drop (09' JK).

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