By slider on Monday, April 09, 2001 - 09:31 am: Edit

Just installed the RoverTym 2" lift package.
Definate Vibration in driveline!!!

Must be rotoflex due to it's extreme angle?!

Where do I get a Used driveshaft with a U joint setup?
What years RR driveshafts fit this 95 disco??
Has anyone done this??
I know I'm going to need the NEW HUB KIT .

Thanks

By Ron on Monday, April 09, 2001 - 09:46 am: Edit

I have one off of an 87 Rangie that will fit. I think 87 and 88 are the same length and 90-95 will work but are not exactly right. Make me a reasonable offer on it. I was going to put it on the disco but the disco seems happy with its rotoflex, despite its disdain for its engine management system.

Ron

ronald.brown(at)funb.com

By pk on Monday, April 09, 2001 - 01:11 pm: Edit

RTE 2" kit should not vibe at all. That is not enough lift to create much angle. Maybe your rotoflex is shot? Maybe your other 2 u-joints are shot? It is more likely the front driveshaft anyway. It is so short, the angle increases more with lift.

CALL JOHN

pk

By Slider on Tuesday, April 10, 2001 - 01:59 am: Edit

Here's the deal...Following RTE directions, it said use the 1/2" and 3/8" included spacers with a 2" lift...I did.
This made the pumpkin level to the ground plane. BAD ANGLE!
I then removed both links again and put in just the 1/4" spacers, by themselves, this seemed to do the trick.
The differential plane seems very close to the plane of the driveshaft.
Looks like I could even go to something as thin as a 1/16" washer...instead of the included spacers.
to bring the diff. up a little higher.
My driveline does not seem to have that grinding/vibrating feel...
I'm going on the highway today to see if this thing is safe for the family!

By Milan on Tuesday, April 10, 2001 - 06:07 am: Edit

If I'm not mistaken, stock rear driveshafts do not have a double-cardan joint on the t-case ouput side. So, rear pinion being level with the ground would be the more correct angle than it pointing up. The pinion should actually point down by 1-2 degrees from the t-case output shaft level/line.

Anyway, let us know what will correct your problems.

By pk on Tuesday, April 10, 2001 - 06:22 am: Edit

Ohhhh,

You installed some kind of lift package?

I just installed 2" RTE springs, front and rear, and all was cool and it rocks. What do you need shims and spacers for?

Anyway... CALL JOHN. He is The Man. I guarantee he wants to help you!

OK, also... Rotoflex is good. No reason to ditch it. I love mine and often speak nicely to it.

I think your vibe troubles are somewhere else.

pk

By slider on Tuesday, April 10, 2001 - 04:20 pm: Edit

double-cardan joint??
is this a sliding spline??

By Milan on Tuesday, April 10, 2001 - 05:35 pm: Edit

No,
Double-cardan is what is commonly (and wrongly) refered to as a CV joint. Since the Disco uses real CVs on the front axleshafts, I just wanted to make the distinction I was talking about the driveshaft.

Sorry about the confusion.

By Slider on Wednesday, April 11, 2001 - 05:26 am: Edit

So "U" joint = Double-cardan !? GOT IT.

By Ron on Wednesday, April 11, 2001 - 05:29 am: Edit

No.
rotoflex=rubber disc
U joint= one ujoint
CV or double cardon aka cv driveshaft= two u joints

Ron

By Slider on Wednesday, April 11, 2001 - 07:05 pm: Edit

OK...GET the dictionary of acronyms!! HA HA HA

By slider on Wednesday, April 11, 2001 - 07:06 pm: Edit

don't you need two U's to make 1 joint? Not kidding.

By ho on Wednesday, April 11, 2001 - 07:14 pm: Edit

the vibration is probably from the front shaft.

By Milan on Thursday, April 12, 2001 - 12:01 pm: Edit

Slider,
You're right on the Us but 'u-joint' is a term commonly used to refer to the cross that connects the 2 Us. Hence the term joint, I guess.