PocketsEmpty

Hello all,

So in the planning stages of my lift, it's been really bugging me about whether I'll need a SYE or not, and what kind of vibes I might have to deal with once the lift is on. I'll be sitting at 5.5-6" with 35's eventually. I have the NP242/C8.25 29-spline and I read somewhere that this is the most likely combination for bad vibes. I've heard that you can run a front driveshaft with a Hack-n-Tap on the 242. At my lift height, will this work?

Also...could I do the SYE before the lift, and still use a front driveshaft? Thanks guys...still a noob in this department I just want to be as prepared as possible come lift day, and do whatever I can before then to address any possible vibes before they even happen.

wiggles

I would do the hnt the same day as the lift

dpace7XJ

Yeah you can run a front shaft with the hack n tap, you will have to lengthen it though! however, i ran a 6" lift with 35's for 3 years with basically no vibration, and drove on the freeway every day then wheeled on the weekends, never once did i have my shaft fall out on the trail without the sye kit either but and SYE is a good idea and highly recommended..but i'm still not running one to this day, and probably never will.

PocketsEmpty

How do I go about lengthening it? Could I use, say a ZJ front driveshaft instead? I hear they are a little longer.

dpace7XJ

You can lengthen it by cutting it and welding a few inches of DOM in, I'm sure there Is a writeup somewhere.. As far as a zj shaft...i don't know how long a zj shaft is, but after its lifted, measure how long your shaft needs to be, then see if a zj shaft will work..it is possible...your other option Is a tom woods, or any other custom shaft, but they run close to 3 to 4 hundred bucks.. But they are stronger than crap!

XJ-92

i ran a hack n tap at 6in lift with a stock front driveshaft just fine but i did end up lowering the jeep down to about 4in still no issues.

PocketsEmpty

Sounds good. I guess I'll have to wait and see. Thanks

jeeper kyle

I had to shorten my front ds when I installed it on the back with a HNT

dpace7XJ

I just remembered, I'm stretched in the rear, you will be good with the stock one i think..my bad!!

PocketsEmpty

I'm just looking to use it as a temporary solution until I can get a custom DS. I guess I could just drive it in front wheel drive

salad

Yeah once you get the SYE and lift on, measure yoke-to-yoke and you'll get your DS length. Front wheel drive for the win.

Stock front drive shafts, collapsed length:

XJ 87/88 2.5 Automatic 27.950 53003912
XJ 89/93 2.5 Automatic 27.970 53005540
XJ 89/01 2.5 Manual 25.310 53005541
XJ 89/01 4.0 Automatic 30.660 53005542
XJ 89/01 4.0 Manual 29.250 53005543
XJ 89/00 4.0 Manual 27.080 Export 53005544
XJ 89/00 4.0 Automatic 28.620 Export 53005545
XJ 87/88 4.0 Automatic Export 53005260 *
XJ 95/01 Diesel 27.640 Export 52098208

ZJ 1993 4.0 Automatic 30.530 52098341
ZJ 93/95 5.2 Automatic 32.870 w/o CV 53008427
ZJ 94/95 5.2 A500 30.625 w/o CV 52087805
ZJ 94/95 4.0 A500 w/o CV 52098790
ZJ 93/96 4.0 Manual 52098344
ZJ 93/96 4.0, 5.2 31.875 w/ 231, 242 52087805
ZJ 93/95 4.0 Manual 30.000 w/231 52088090
ZJ 93/96 5.2 33.000 w/ 231 53008427
ZJ 96/98 5.2, 5.9 31.250 w/ 249 & Model 30 52098379
ZJ 1996 5.2 Automatic 32.875 w/ 249 & Model 30 52098501
ZJ 96/98 4.0 33.000 w/ 242 52098707
ZJ 96/97 4.0 Automatic 31.250 52098850
ZJ 1996 5.2 Automatic 30.750 w/ 249 & Model 30 52099246
ZJ 96/98 4.0 33.500 w/ 249 52099260

PocketsEmpty

You rock, as always. Very helpful info. I should start my build thread soon. I got a few things to throw in there but was going to wait until I get started on my rust repair and Monstaliner project which is also around when I'll be putting my new BW flat flares on That is #1 priority then things will really start rolling from there hopefully