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Old 12-25-2008, 07:54 PM   #1
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Rubicon springs: More lift than stock ??

I can get my hands on a set of stock Rubicon springs for almost nothing. If I put those on when I put my 2" spring spacers in will I get any additional lift from them ? Or should I just put my old stock springs back in? (stock 98 TJ)
Thanks

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Old 12-25-2008, 08:48 PM   #2
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Unless you have sagged out springs, You wont gain much lift. I will say from experience, your gonna get a stiff ride. If you get em for nothing, throw em in, but I wouldnt spend the money on em. Just my opinion.

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Old 12-25-2008, 08:58 PM   #3
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Rubi springs are not any taller then the stock tj springs. They are a bit thicker spring but thats it.
I put some stock 04 rubi springs in my 99 tj along with a 2" BB and i gained a total of 3.25 "
So you will return to stock level and then gain your 2" from your BB.
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Old 12-25-2008, 09:10 PM   #4
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Okay Thanks for the Info Guys
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Old 12-25-2008, 10:37 PM   #5
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the difference in the rubi springs is the spring rate. the are heavier duty for the added hardware and weight of a rubicon compared to a typical wrangler....i would say that if u put them on a 4 cyl se wrangler you would gain some lift.....but ifyouve got a winch and heavy duty bumpers you would probably just be gaining stock lift height
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Old 12-25-2008, 11:54 PM   #6
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The only thing i did notice about the rubi springs is since the tj doesnt have as much weight as the rubi there is alot more bounce. Mainly in the rear where its light. But you will gain no more lift then stock. It may seem to be higher but thats because you are returning to stock level.

If you are going to lift it in the future i would just wait it out and save for the lift.
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Old 12-26-2008, 11:04 AM   #7
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I believe you guys, but....The Rubicon comes stock with the 31" tires. I thought the Ruby springs gave a little lift to account for this. I wouldn't be the first time I was wrong.
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Old 12-26-2008, 11:20 AM   #8
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Nope, no additional lift, just a heavier spring rate like mentioned above. But yeah if they are free, why not?
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Old 12-26-2008, 08:52 PM   #9
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The question came up shortly after I bought my Rubi in '03 - I was replacing the complete suspension.

At least at that time the part numbers for Rubi springs were the same as any other TJ. Same for the shocks. That may have changed since then.

I tossed the ones I took off into a pile of other springs left over from several conversions. Not long ago I was asked - I couldn't tell which from which.
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Old 12-26-2008, 10:05 PM   #10
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only way ya could tell the difference is by how thick the springs are.. the rubi springs are visibly thicker
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Old 12-26-2008, 10:34 PM   #11
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Quote:
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only way ya could tell the difference is by how thick the springs are.. the rubi springs are visibly thicker
My coils are mixed together and I cant tell the difference. I only know because the rubi coils have a little blue paint on them (that I put on there when I got them)
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Old 12-26-2008, 11:18 PM   #12
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just buy a real long arm lift kit and quit treading water....
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Old 12-27-2008, 12:13 AM   #13
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Quote:
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My coils are mixed together and I cant tell the difference. I only know because the rubi coils have a little blue paint on them (that I put on there when I got them)
When i changed out my stock 99 springs i set them next to the rubi ones and you could see a small difference in size of the spring. Not much. I believe there is a thread here somewhere that someone mic'd both sets and the tj springs were like .435 or something and the rubi were .573... something like that...
not a big diff... but WOW is my azz end bouncy now that i put those in with some rancho 5k's... HATE IT
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Old 12-27-2008, 12:36 AM   #14
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i know that u guys dont understand this but spring rate does afford more lift.....if youve got a stiffer spring rate then youve got taller lift.......that is how rough country is able to sell 4" springs that are the same length as stock but ride taller than stock....stiffer junk with no true balancing or vehicle specific spring rates......they just make a stiff spring that does not settle under the weight of the veihicle.....junk(as ive said before)
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Old 12-27-2008, 04:45 AM   #15
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Quote:
Originally Posted by flattietj View Post
i know that u guys dont understand this but spring rate does afford more lift.....if youve got a stiffer spring rate then youve got taller lift.......that is how rough country is able to sell 4" springs that are the same length as stock but ride taller than stock....stiffer junk with no true balancing or vehicle specific spring rates......they just make a stiff spring that does not settle under the weight of the veihicle.....junk(as ive said before)
How can something that is the same length but stiffer be any taller?

I have rubi springs in and it brought me to stock level again.
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Old 12-27-2008, 08:01 AM   #16
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just buy a real long arm lift kit and quit treading water....
well some of us have to make do with what we can, ya know, bills to pay.


Quote:
Originally Posted by flattietj View Post
i know that u guys dont understand this but spring rate does afford more lift.....if youve got a stiffer spring rate then youve got taller lift.......that is how rough country is able to sell 4" springs that are the same length as stock but ride taller than stock....stiffer junk with no true balancing or vehicle specific spring rates......they just make a stiff spring that does not settle under the weight of the veihicle.....junk(as ive said before)
I had rubicon coils in my stock TJ and gained ZERO LIFT!! The only thing I noticed between the rubicon coil and the stock sport model coil was the ride was a little more bouncier, but I gained ZERO LIFT!! Stock height, ground to bottom of front bumper was 16.5", with Rubicon coil, ground to bottom of bumper, 16.75". That is 1/4" of lift.
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Old 12-27-2008, 10:33 AM   #17
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"IF" there was a difference - in stiffness, spring rate, height, coil diameter, wire diameter, number of turns, materiel, heat treating (the things that determine spring rate,) even paint color - anything! - wouldn't they carry a different part number?

Think about it!

I sure hope part numbers are unique to items! If the part numbers were all the same I'd worry if I ordered a spring that I'd receive a door or something.

Even most old springs still have the plastic ID tag - get the number and have your dealership look up what it's from!
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Old 12-27-2008, 10:42 AM   #18
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"IF" there was a difference - in stiffness, spring rate, height, coil diameter, wire diameter, number of turns, materiel, heat treating (all things that determine spring rate,) even paint color - anything! - wouldn't they carry a different part number?

Think about it!

I sure hope part numbers are unique to items! If the part numbers were all the same I'd worry if I ordered a spring that I'd receive a glove box latch or something.

Even most old springs still have the plastic ID tag - get the number and have your dealership look up what it's from!

As I said, I tossed my Rubi springs into the pile of Misc springs, some even from Cherokees. When I went to retrieve the Rubi ones there was no way to ID which were the Rubi's vs Wranglers, vs Cherokees etc.
None were exactly the same height since they were all used.

I didn't bother to look them up, as so many had the same part numbers, and only one set was from my Rubi. Since then I've given some away, and the rest went to the dump.

Even new springs are cheap, why bother with used junk?

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