spring over

[MikeB]

ive been thinking about doing a spring over conversion on my yj, is it possible to do it without the t-case adapter, i know i would have to change the angle of the axl to straighten out the driveshaft and stop it from binding. would i have to make new mounts on the axles for the shocks? overall, how much work would i be looking at and would it be worth it?

 

[Bounty__Hunter]

You can get by temporarily with a transfer case drop, it's been done. May need to lengthen the rear driveshaft slightly to ensure good slipyoke engagement.

IF you want to do it right, I know where you can get a heavy duty SYE for $175 shipped. Then add a CV rear driveshaft (I use shortened front TJ/XJ driveshafts).

You should relocate the shock mounts higher. You can then lose the rear track bar and decide if you want to keep the front track bar and swaybar. May want one or the other depending on lockers and how soft of springs you'll use.

 

[Joopin]

When I did my spring over I opted to do the SYE and the CV shaft... screw that T-case drop. You will also need longer brake lines, dropped pitman arm, new perches (my factory ones were junk by the time I got em off) and a drag link relocation bracket. Rubicon express sells the whole kit minus the SYE and CV. Saved me lots of time that would have been spent fabbing small parts.

Oh and the axle angle, if you go with a CV shaft and SYE you point the end yoke right at the output yoke and drop it 3 degrees. That is your new axle angle. Tom Woods Driveshafts have alot of info on that stuff. www.4xshaft.com

good luck

Joop

 

[joedirt]

The sye is the way to go it defeats the purpose to raise your jeep only to lose by lowering your trans case.

 

[Snitty]

Lowering the Tcase doesn't lose nearly as much clearance as you gain by doing the SOA.

Although, I believe you can only get away with a TC drop on the SOA in a 4 cyl. The 4 cyl drivetrain is shorter so you can afford the extra difference without as drastic of an angle. I could be wrong, so don't take my word on that 100%.

If you do the SYE, you will not regret doing it. Money comes and goes, make it go in the right place. It is not tough to install the SYE yourself. I've taken apart the 231, 242 and the 249 completely. They are really not complicated machines and there really is not much to mess up.

 

[Bounty__Hunter]

The sye is the way to go it defeats the purpose to raise your jeep only to lose by lowering your trans case.

So, a SOA raises the jeep at least 5". Swapping in 33" tires raises the belly of the jeep another 3", for a total gain under the belly pan of 8". I don't see how a 1" transfer case drop negates 8" of clearance gain. What's your math say?

 

[jps4jeep]

snap!


ALso understand, when done properly, SOA can cost the same, if not more than a standard lift.

 

[joedirt]

So, a SOA raises the jeep at least 5". Swapping in 33" tires raises the belly of the jeep another 3", for a total gain under the belly pan of 8". I don't see how a 1" transfer case drop negates 8" of clearance gain. What's your math say?

My math says with 1" trans drop on a spring over isn't going to work so with this sign + add a couple more inches to it,and I 'm so sure if that would work,you'd have lots of shakes.You might as well spend a little extra and have it done right.

 

[currupt4130]

drag link relocation bracket. Joop

what the hell is that?

anyway, spring it over, do the sye, call it done. you need new perches, shocks, longer brake lines, a new rear drive shaft, a few miscelaneous brackets, a drop pitman and that is all. that is the way to do it, any way less and you will end up with problem down the road. substitutions can be made, like bounty's shortened cherokee front shaft in the rear or just moving your rubber lines down by adding hard line in between the factory hard line and rubber line, but RE sells a good kit for the majority of the stuff needed. after that you really only need the sye and drive shaft. do it right the first time.

take advice from the guys that know what they are talking about and dont listen to the web wheelers. joopin, snitty, bounty, and i all have first hand experience with this and are more than glad to give you the finer points of an soa. if you dont know what your talking about please dont confuse the guy!

 

[Joopin]

what the hell is that?

Sorry I meant Front Track Bar Relocation bracket. It's to prevent bumpsteer. Once you lift your jeep that much your drag link and front track bar will not be paralell which causes bumpsteer. One little bracket can remedy that problem. This is what I used below, its from Rubicon Express. I didn't use the Tcase drop that came with it or the flipped shock mounts.

Sorry about the confusion.

 

[TwistedCU]

Even if you have the 4 banger which does have a bit shorter drivetrain and slightly better angle, you'll really need to do a SYE.

Bounty's mention of a shortened front shaft from an XJ/TJ is not a shortcut or cheat, it is an inexpensive alternative to having a custom shaft made. I don't know where he gets the $175 SYE buit I'd look into it

 

[currupt4130]

Sorry I meant Front Track Bar Relocation bracket. It's to prevent bumpsteer. Once you lift your jeep that much your drag link and front track bar will not be paralell which causes bumpsteer. One little bracket can remedy that problem. This is what I used below, its from Rubicon Express. I didn't use the Tcase drop that came with it or the flipped shock mounts.

Sorry about the confusion.

o yea, i know what that is, i ditched the front track bar though. ive got one sitting in my garage! i used the same kit. ive seen sye's on ebay for 175 all the time

 

[joedirt]

you guys are the only ones that know what you are talking about you should be in business

 

[Snitty]

The first SOA I ever did was on a 4 cyl. We dropped the Tcase 1.5 inches and it has performed flawlessly. It has been 3 years

 

[88Wrangles]

My math says with 1" trans drop on a spring over isn't going to work so with this sign + add a couple more inches to it,and I 'm so sure if that would work,you'd have lots of shakes.You might as well spend a little extra and have it done right.

I'd have to agree with everyone else and say a 3"+ t-case drop would be a little rediculous!

But, I also say you should look into a sye...I think it would be worth it

 

[Bounty__Hunter]

$174.99 shipped free to your door, lifetime warranty against breakage. This is the same style HD SYE that AA and others offer, at an unbeatable price: http://www.performanceoffroadcenter...id=82&osCsid=3fc4dca5ea54c1cca7a8009cfaf10f5e

I've installed several of these kits, very well built.

 

[joedirt]

If you going to do soa and spend time and money into it, put a sye in do it right the first time.I wouldn't worry about doing any kind of drop.Thats all I was trying to say.