TeraFlex JK 2.5" Coil Kit Questions
- Thread starter dotnetrob
- Start date
WJCO
Meme King
This is a common problem with physics in general. Lifting vehicle's suspensions change drive line angles. The biggest issue with Jeeps is most Jeeps use a Rzeppa joint from the factory on their front drive shaft. This type of joint wears out very quickly under steep angles.
A body lift won't affect drive line angles at all as it doesn't interfere with the drive train.
mudmobeeler
Caught the Bug
Think some of it is also a combination of everything. At 3 inches of actual lift, a front driveshaft is recommended. At 3 inches adjustable lower control arms are also recommended for caster issues.
Like I said though, I have this same lift and haven't changed my arms, driveshaft, or done a drag link flip kit. I do have a Warn Powerplant winch in an EVO 1/4 pounder bumper so I may have got only 2.5 inches out of mine. It doesn't look like it has changed before and after the winch though.
Stone_JKUR
New member
I'm running this lift, and I netted 2.5 inches in the front and 1.5 inches in the back, but I've added a lot of weight to bring it down from what other people net on the Internet. My drive shaft has plenty of clearance and the angle doesn't seem off enough to worry about it
lidless07X
Member
Why hasn't anyone suggested lower control arm relocation brackets ?
Since the OP has stated he's a road warrior, would they be a better option vs new adjustable control arms ?
Since the OP has stated he's a road warrior, would they be a better option vs new adjustable control arms ?
OverlanderJK
Resident Smartass
No they aren't troll. Go away.
piginajeep
The Original Smartass
Hell he might as well install coilovers
lidless07X
Member
What's with your Asshat response ? I'm asking a legitimate question to help the OP get the answers he needs or wants. I am considering going a little higher than my little 2" lift myself so I would like to know as well.
From what I'm trying to understand in this thread, the extra lift is going to create castor and/or driveshaft angle problems.
Wouldn't the brackets help?
olram30
Not That Kind of Engineer
I'm a road warrior and get out when I can. I chose adjustable front lowers. Do it once, do it right
dotnetrob
Member
Kind of gave up on this thread. My questions seem to always net the same responses. No matter what I do to my Jeep, its doooomed... Apparently there is no way to safely and reliably raise a jeep and all kits apparently just lead to problems...
As I said I lowered alot of trucks, air bags, 4-links etc.. know a bit about suspension, but not 4x4 suspension. Did all my work myself and with friends, when I had them. Have no friends with raise jeeps, or friends for that matter, so have to really on the lovely internet.
I opted for the coil kit because I plan on adding new bumpers, already have a huge smittybilt storage vault in back, hard top, im fat, and will be eventually running 35" with a spare on the back. I figured with all that weight, coils have a better chance of not causing me to hate my jeeps ride quality. Yes, a budget boost may work, but I lowered many trucks, some with budget lowering kits, spring compressors, etc... All of which where never as good as putting a little more $ down and replacing stock parts.
Went to 3 local 4x4/jeep/custom shops and talked to people at all 3.
The first recommend a budget boost, but said most people come back within a year and want to upgrade. But the shop gave me some options, price ranges etc...
The next shop wouldn't even suggest any kit that was under 1800 and nothing below 3". And install was another 1000 or so. They didn't want to really discuss the kits and lift, I was just another customer to make $ off of.
The last shop gave me many options and suggestions, let me ask many stupid noob questions, but let me choose my poison. I opted for the Teraflex kit because if it give me a bit more then 2.5 and then with added weight comes down a bit, i figured I would be sitting good. But not all the add-ons/mods will be done immediately. Will be running stock wheels & tires for a bit and bumpers will eventually get added.
So back to my original question... If i get 3+ out of the lift, should I add/adjust something to compensate? The last shop recommend front arms and something else if I got over 3". What should I monitor for noise, wear, or something else? Should I gain weight to compensate?
As I said I lowered alot of trucks, air bags, 4-links etc.. know a bit about suspension, but not 4x4 suspension. Did all my work myself and with friends, when I had them. Have no friends with raise jeeps, or friends for that matter, so have to really on the lovely internet.
I opted for the coil kit because I plan on adding new bumpers, already have a huge smittybilt storage vault in back, hard top, im fat, and will be eventually running 35" with a spare on the back. I figured with all that weight, coils have a better chance of not causing me to hate my jeeps ride quality. Yes, a budget boost may work, but I lowered many trucks, some with budget lowering kits, spring compressors, etc... All of which where never as good as putting a little more $ down and replacing stock parts.
Went to 3 local 4x4/jeep/custom shops and talked to people at all 3.
The first recommend a budget boost, but said most people come back within a year and want to upgrade. But the shop gave me some options, price ranges etc...
The next shop wouldn't even suggest any kit that was under 1800 and nothing below 3". And install was another 1000 or so. They didn't want to really discuss the kits and lift, I was just another customer to make $ off of.
The last shop gave me many options and suggestions, let me ask many stupid noob questions, but let me choose my poison. I opted for the Teraflex kit because if it give me a bit more then 2.5 and then with added weight comes down a bit, i figured I would be sitting good. But not all the add-ons/mods will be done immediately. Will be running stock wheels & tires for a bit and bumpers will eventually get added.
So back to my original question... If i get 3+ out of the lift, should I add/adjust something to compensate? The last shop recommend front arms and something else if I got over 3". What should I monitor for noise, wear, or something else? Should I gain weight to compensate?
aldaman
Member
I had a 2.5" TF coil kit on my previous 08 JKU and when I owned it, never had any problems with the lift. If you are not adding aftermarket bumpers (front & rear) + a 35" spare then you will net ~3" in lift. With those add ons then it will settle to 2.5".
Aside from what the kit provides to help dial your lift you can add:
- A front adj track bar to center your axle
- Front lower control arms to adjust your caster if it feels flighty
- A front aftermarket driveshaft or wait for the OEM to tear / break
- Longer rear brake lines if you feel the extended brake brackets are not sufficient
- aftermarket shocks other than the TFs
mudmobeeler
Caught the Bug
Think you got all of your answers. Your either don't want to listen or keep overthinking this.
Run the 2.5 inch coil kit. Add your bumpers or whatever and the 35s. When and IF (big IF) something happens replace it.
Like I said, I have this same lift with the factory rubi shocks and extensions, the lift came with brake line relocate brackets for the rear. I'm still running all factory arms and front and rear factory driveshafts. Have probably 10k miles on it. Drive it everyday, no issues.
mudmobeeler
Caught the Bug
Or buy a leveling kit and cut the fenders for 35s, you'll need proper bump stops.
mudmobeeler
Caught the Bug
Or buy the EVO 3 inch enforcer, add the drag link flip, good shocks, and front driveshaft. Then be done with it.
dotnetrob
Member
Teraflex 2.5" Coil Kit with Shocks is now installed.
According to my measurements, I am currently sitting at 3 1/2" of lift up front and 2" in the rear. Hoping front comes down a bit if the as coils settle. Front appears a bit high to me. Drives great, have put about 30 miles of highway driving and 10 of side streets and in my opinion is rides a bit smoother than stock.
Also installed 1.5" Spidertrax wheel spacers all around.
Believe I may add a new front adjustable track bar and adjustable front lower control arms to compensate for the additional lift. But would welcome any advise or feedback.
According to my measurements, I am currently sitting at 3 1/2" of lift up front and 2" in the rear. Hoping front comes down a bit if the as coils settle. Front appears a bit high to me. Drives great, have put about 30 miles of highway driving and 10 of side streets and in my opinion is rides a bit smoother than stock.
Also installed 1.5" Spidertrax wheel spacers all around.
Believe I may add a new front adjustable track bar and adjustable front lower control arms to compensate for the additional lift. But would welcome any advise or feedback.