Did you need to install the sye?
What year is your xj,
What lift size, brand?

 

97 sport wth 6.5 rustys lift with 2 inch blocks in back. if you are going more the 4 inchs you need to put one in

 

Yes. It's a good idea to put an SYE in anything above 3-4 inches of lift.

Mine is a 1999 and I had the 6.5 inch Rough Country lift kit.

Unfortunately, I had the NP242 transfer case and finding an SYE was difficult. Most people just do the hack-n-tap on it. The NP231 transfer case, on the other hand, has many SYE kits. I bought the Tom Woods SYE kit. It did cost quite a lot more than I wanted to pay, but I have the piece of mind that I got it done right. The hack-n-tap works, but it's just sketchy.

 

you forgot to add the actual "poll" to this thread. lol

I don't know if I would've needed an SYE my RE 4.5" lift isn't even in yet. but I got one anyway so I could do it once and be done with it
1993 np231 auto trans

I needed a couple sockets, a GOOD pair of snap ring pliers, flathead screwdriver, RTV gasket maker, small hammer, and maybe a couple other simple tools
had to drop the xmember so I used a floor jack to support the transmission. oh and it was a JB conversions SYE

 

I'm 5 inches and I don't have one no t case drop and still no vipes

 

No.
'97
7.5" RE, RC, Rusty's, Ironman4x4

 

Really? How are you that high with no SYE? haha

 

88 xj 231tc with a 4.5 in zone lift on 33 toyo mts. Have transfer case drop. No sye...and no vibes

 

2" RE 1990 242
No SYE or t case

 

1995
5" lift, shackle relocation brackets
ax-15/np231/c8.25

no sye, no drop, no shims, no vibes up to 85mph

 

6 degree shims, i go through 2 U-joints every 3 months or so with about 300miles a week too... no vibes at all, up till 75 never gone faster then that... i got a buddy (Gee Oh Dee) is hooking me up with another drive shaft for a hack n tap SYE. so soon ill have SYE too lol

 

What's the t case # for the 99 with full time 4x4?