bdahlg
NAXJA Forum User
- Location
- Waltham, MA
91 xj 4.0 aw4 np231
I installed my PORC SYE after I lifted her back in December. Upon installation, I did not have a rear driveshaft and eagerly wanted to drive it because I had the tcase out for a couple days. I drove out of my drive way with it in four wheel (only front driveshaft) and when I hit about 30mph, i heard the tcase slip and just grind with no furthr movement. I put it in two wheel then back to 4hi, engaged, drove a little, 3 seconds later slipped and grinded again. ignored it and did not drive it again until i got a front DS out of a ZJ and usd it for the rear.
I have a disco 30 with the vacuum switch on the tcase, therefore I had to grind the shaft in the case. I grinded it down to an inch per instruction, but the speedo housing did not seem flush enough with it fully engaged, so i took a little more off until it was rather flush (although still not completely).
I wheeled a little the past six months and it has been working fine, just a little slip and grind here and there. Yesterday, I went for a hill climb and did not have 4wd, axle was engaged (PART TIME light), but no front tire movement, which led me to believe the vacuum was working corectly, but the case wasn't engaging. I usually could crawl up the hill from past experience, but yesterday my rear tires were just spinning; couldn't even get half way up.
I am 95% sure i installed teh SYE correctly as i made sure to take my time on it. Ever since i did, i have had 4wd act really screwy. I readjusted the handle after I reinstalled the case becase it just did not feel like it was engaging correctly.
My thought is that the shifting shaft? inside the case is not grinded down enough so the shaft is just pushing against the speedo housing when engagd, not allowing the gears to mesh up correctly. I have seen absolutely no problems in 2hi since the install.
PLEASE HELP!!! I am goin wheel in july and obviously need to splash some mud around and would rather not go through the hassle of removing the case again. Thanks in advance.
I installed my PORC SYE after I lifted her back in December. Upon installation, I did not have a rear driveshaft and eagerly wanted to drive it because I had the tcase out for a couple days. I drove out of my drive way with it in four wheel (only front driveshaft) and when I hit about 30mph, i heard the tcase slip and just grind with no furthr movement. I put it in two wheel then back to 4hi, engaged, drove a little, 3 seconds later slipped and grinded again. ignored it and did not drive it again until i got a front DS out of a ZJ and usd it for the rear.
I have a disco 30 with the vacuum switch on the tcase, therefore I had to grind the shaft in the case. I grinded it down to an inch per instruction, but the speedo housing did not seem flush enough with it fully engaged, so i took a little more off until it was rather flush (although still not completely).
I wheeled a little the past six months and it has been working fine, just a little slip and grind here and there. Yesterday, I went for a hill climb and did not have 4wd, axle was engaged (PART TIME light), but no front tire movement, which led me to believe the vacuum was working corectly, but the case wasn't engaging. I usually could crawl up the hill from past experience, but yesterday my rear tires were just spinning; couldn't even get half way up.
I am 95% sure i installed teh SYE correctly as i made sure to take my time on it. Ever since i did, i have had 4wd act really screwy. I readjusted the handle after I reinstalled the case becase it just did not feel like it was engaging correctly.
My thought is that the shifting shaft? inside the case is not grinded down enough so the shaft is just pushing against the speedo housing when engagd, not allowing the gears to mesh up correctly. I have seen absolutely no problems in 2hi since the install.
PLEASE HELP!!! I am goin wheel in july and obviously need to splash some mud around and would rather not go through the hassle of removing the case again. Thanks in advance.