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Old 04-05-2008, 08:59 PM   #1
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Got a Questions about my 3.73's

Thinking about lifting my 02 TJ Sport with the RE 3.5 superflex. Actually I;m not thinking baout it, I;m going to do it but just have to save up a little more or blow it on the credit card. I'm looking for the Jeep Pro's Advise on this.

I don't want to upgrade my gears right away...so will my 3.73's hold up with the 33" wrangler MTR's I'm planning on getting?

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Old 04-05-2008, 09:06 PM   #2
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Fo sho.... Jack was running 3.73's with 35's and he didn't complain much.

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Old 04-05-2008, 09:13 PM   #3
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i have 35s and i'm happy with it.. People say "5th will be useless" and crap like that. I use 5th all the time and still have stock gears.

read my sig for detailed info on my rig.
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Old 04-05-2008, 09:18 PM   #4
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I run 33's on 3.07's and its does ok, but I've got the 6 spd. It still want be that bad with the 5spd, and like trip said plenty of ppl will chime in to tell you how bad it will be, but if you keep in mind its a jeep and not a sports car, you can definatly live with it. and it's certainly driveable.
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Old 04-05-2008, 10:38 PM   #5
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at 60 mph my rpm is at about 1500-1700rpm
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Old 04-05-2008, 11:22 PM   #6
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you wll be fine, i have 3.73s and 33s still has plenty of power, you will notice a power loss but things like e fans and power adders will help
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Old 04-06-2008, 11:09 AM   #7
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DONE!!!! EXCELLENT!! 33'S COMiNG.

Oh wait...I need the money first. So 3.5 inch lift, 33" Wrangler MTR's and I'll be all done upgrading my Jeep......NOT!

If I blow 2 tires on the big bear run, I'm blowing the lift kit and the tires on the credit card. Fck-it

Thanx Guys.
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Old 04-06-2008, 11:14 AM   #8
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Eh...I'm not exactly pleased with that setup (what I'm running now) but you can get used to it and it will get you by for a while w/o any problem. Just get ready to down-shift to 4 on every little hill.
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Old 04-06-2008, 11:44 AM   #9
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So I'm readiong with the Rubicon Express Super Flex 3.5 Kit, I wil need a slip yoke eliminator and a cv drive shaft conversion. So the kit will cost about $1,000 with a good set of shocks, and the labor will be about $550. I wonder how much more it's going to set me back to get the SYE and the CV Drive Shaft conversion installed? What would happen if I don't get that done?
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Old 04-06-2008, 12:19 PM   #10
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I dont have a sye and dshaft, I do want to get the setup put in but its not a must. I just lowered the Tcase an inch. Give DC4wd.com and email for a quote he has good prices. i beleive i paid low 800 for my 3.5supflex trac bar, quick discos, and shocks. also see what northridge4x4.com can do. he has free shipping over 100 bucks.

you though about installing it yourself?? i did mine in a weekend, (lots of beer and took my time) no special tools required.
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Old 04-06-2008, 12:30 PM   #11
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HHHmmmmmm Interesting thought. All the mods so far I've done myself but never thought about doing a suspension lift........ I wonder if I can do it?
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Old 04-06-2008, 02:57 PM   #12
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Quote:
Originally Posted by MrBash View Post
HHHmmmmmm Interesting thought. All the mods so far I've done myself but never thought about doing a suspension lift........ I wonder if I can do it?
I did it my self too with nothing but few basic hand tools and the stock jacks from my jeep and the other from an suv (montero sport)
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Old 04-24-2008, 07:44 PM   #13
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So I'm readiong with the Rubicon Express Super Flex 3.5 Kit, I wil need a slip yoke eliminator and a cv drive shaft conversion. So the kit will cost about $1,000 with a good set of shocks, and the labor will be about $550. I wonder how much more it's going to set me back to get the SYE and the CV Drive Shaft conversion installed? What would happen if I don't get that done?
I took it to a shop and had the SYE and CV drive shaft installed. To buy it and install it was around $700 that was parts and labor.
Hope this helps!
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Old 04-24-2008, 08:03 PM   #14
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its all nuts and bolts!!!! if you have done other mods to your rig you can install a suspension lift !! use the search tab on this forum! guranteed to help a ton !! or just post up questions and there almost guranteed to answered!!


Almost forgot - 33x12.50 x 3.73 gears with auto trans - I dont run OD above 55mph but its ok my next $$$$ mod will be gears! dont get me wrong not a necessity more of a personal preferance!!
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Old 04-24-2008, 08:10 PM   #15
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Suspension Installed!

BEFORE


AFTER


BEFORE


AFTER






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Old 04-24-2008, 08:11 PM   #16
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Your right...the gears are more of a preference. It drives fin with the 3.73. Forget about 5th gear on the freeway going uphill though.
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Old 04-24-2008, 08:18 PM   #17
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i didnt look at the date of original post



so.............did you do the install???????/
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2004 TJ
4" suspension lift
sye/TW driveshaft
NTH degree c/a
2" body lift
aussie locker
Rancho rs9000 shocks
tube bumpers
winch
33x12.50 firestone's
cold air intake
throttle body spacer
rear led's
sony MEX5DI deck
big ol amp
infinity speakers
-------------------> http://miobi.org/main.htm
--------------------> http://www.jocci.com/
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Old 04-24-2008, 08:20 PM   #18
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i didnt look at the date of original post



so.............did you do the install???????/
No way dude! I gave it to Brothers 4x4 in Ontario to install it.
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Old 04-24-2008, 08:25 PM   #19
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its all good!!
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2004 TJ
4" suspension lift
sye/TW driveshaft
NTH degree c/a
2" body lift
aussie locker
Rancho rs9000 shocks
tube bumpers
winch
33x12.50 firestone's
cold air intake
throttle body spacer
rear led's
sony MEX5DI deck
big ol amp
infinity speakers
-------------------> http://miobi.org/main.htm
--------------------> http://www.jocci.com/
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Old 04-25-2008, 08:58 AM   #20
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I've been thinking about that RE 3.5 superflex lift myself (w/ 33s). How much did the ride change on the road? Better/worse? Are you running the stock D30/D35 axle setup? I love the way it looks.
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Old 04-25-2008, 04:17 PM   #21
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Fo sho.... Jack was running 3.73's with 35's and he didn't complain much.
Nope, sure didn't. I ran 3.73's and an auto on 35's for almost 4 years before I just recently tossed a set of used 4.56's in my axles. I thought it was a perfect mix of trail and street with my 4:1. Of course now that I have gears I'll never go back to that, but I don't think you'll be disapointed.
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Old 04-26-2008, 01:15 AM   #22
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sis you install a Bl or and sye?
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Old 04-26-2008, 02:18 AM   #23
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Looks great! If you end up getting an SYE and cv shaft, install should run you about $250... that seems to be the going rate around the Phoenix area. I installed mine with some help from a local Jeeper for the price of pizza and beer.

I'm slowing saving money for a new rear axle, gears and some 35's with my current lift.

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