Double Cardan or Wide Angle?

[terryjm1]

My lift has my front driveshaft at too great an angle. I was considering buying a Tom Woods double cardan driveshaft to solve this problem.

However, after doing some internet research I discovered another option, a wide angle driveshaft.

The wide angle option is about half the price of the double cardan


Anyone have experience with a wide angle driveshaft?

 

[discostew]

How often do you plan to have your wheels off the ground? I’m not sure I would be all that concerned.
I’ll go find those shafts I told you I have if you really want to do something about it. They came off the truck that had those bumpers on it. It would be a reunion of sorts.

 

[terryjm1]

How often do you plan to have your wheels off the ground? I’m not sure I would be all that concerned.
I’ll go find those shafts I told you I have if you really want to do something about it. They came off the truck that had those bumpers on it. It would be a reunion of sorts.

That would be great! I think it really needs it, particularly on the front. It sounds like an airplane propeller right now over 20 mph and I am concerned it is going to cause rapid wear of the u-joint. There is light contact at the t-case end when spinning it by hand at full extension. I initially thought it was dried out grease in the u-joints but with the driveshaft shaft off they move nice and smooth.

On the bright side, I was informed yesterday the rear driveshaft in it fits my TR8 and will allow me to eliminate the non-serviceable driveshaft it has now. The TR8 has a cv joint on one end that Triumph intended to be disposable. I have been surprised how many parts from the D1 fit the TR8. In the case of the driveshaft, it isnt the rotoflex driveshaft that fits, it is the Range Rover /ROW D1 non-rotoflex driveshaft that commonly is used to replace the D1 NAS rotoflex driveshaft. I also learned, which may be old news here, the part number (FRC8387) for the non rotoflex driveshaft, which is available new from the usual vendors for a little more than $100. I know many TR8 folks have paid hundreds of dollars for custom built driveshafts to replace the CV type driveshaft.

 

[p m]

The wide angle option is about half the price of the double cardan
Anyone have experience with a wide angle driveshaft?

I doubt it will solve your driveline vibration issue.

 

[discostew]

That would be great! I think it really needs it, particularly on the front. It sounds like an airplane propeller right now over 20 mph and I am concerned it is going to cause rapid wear of the u-joint. There is light contact at the t-case end when spinning it by hand at full extension. I initially thought it was dried out grease in the u-joints but with the driveshaft shaft off they move nice and smooth.

On the bright side, I was informed yesterday the rear driveshaft in it fits my TR8 and will allow me to eliminate the non-serviceable driveshaft it has now. The TR8 has a cv joint on one end that Triumph intended to be disposable. I have been surprised how many parts from the D1 fit the TR8. In the case of the driveshaft, it isnt the rotoflex driveshaft that fits, it is the Range Rover /ROW D1 non-rotoflex driveshaft that commonly is used to replace the D1 NAS rotoflex driveshaft. I also learned, which may be old news here, the part number (FRC8387) for the non rotoflex driveshaft, which is available new from the usual vendors for a little more than $100. I know many TR8 folks have paid hundreds of dollars for custom built driveshafts to replace the CV type driveshaft.

See if Will Tillery has 1 or 50 of them. I’ll sell it to you if he doesn’t have one for you. I have no idea what the thing is worth. I keep it because it’s a stock replacement for a disco2( no Capitol D on purpose). What I have that I find really odd is a double Cardin rear shaft.

 

[discostew]

I doubt it will solve your driveline vibration issue.

If the thing is lifted even 3 inches that rotoflex coupler could be the vibration. I learned early on you had to get rid of that when you start lifting. I actually prefer the rotoflex coupler. It’s quiet.

 

[Tugela]

See if Will Tillery has 1 or 50 of them.

I bought a rebuilt D2 front driveshaft from Will as a backup in case my OME lift didn't play nice with my stock D1 front driveshaft. So far I haven't needed it. Make sure you also get the D2 flange for the driveshaft/transfer case interface.

 

[terryjm1]

If the thing is lifted even 3 inches that rotoflex coupler could be the vibration. I learned early on you had to get rid of that when you start lifting. I actually prefer the rotoflex coupler. It’s quiet.

Fortunately. the rear driveshaft was replaced with a non-rotoflex by the previous owner.

 

[terryjm1]

I bought a rebuilt D2 front driveshaft from Will as a backup in case my OME lift didn't play nice with my stock D1 front driveshaft. So far I haven't needed it. Make sure you also get the D2 flange for the driveshaft/transfer case interface.

So, is the stock D2 driveshaft double cardan?

 

[p m]

So, is the stock D2 driveshaft double cardan?

yes

 

[terryjm1]

yes

Thanks!

 

[robertf]

Fortunately. the rear driveshaft was replaced with a non-rotoflex by the previous owner.

Is this the 98 in your signature? I believe 98 and 99 were factory non-rotoflex, at least mine are

 

[terryjm1]

This is for a 96.

My 98 in the photo doesn’t have rotoflex and my spare axle removed from a 98 didnt have rotoflex, either. I believe you are correct.

 

[terryjm1]

I bought a rebuilt D2 front driveshaft from Will as a backup in case my OME lift didn't play nice with my stock D1 front driveshaft. So far I haven't needed it. Make sure you also get the D2 flange for the driveshaft/transfer case interface.

I did some checking and some suppliers show D2 t-case flange is different from the D1 and some show it is the same. Any thoughts on that?

 

[Tugela]

My thoughts are that I trust Will knows his stuff and for 15 years he's been sending me the right parts. He said I needed the flange so I had him include that in my order. I haven't yet had the chance to compare but from a casual glance it appeared the bolt geometry differs on the T-case end between D1 and D2. I'm oversimplifying here, but the D1 bolt pattern looked more square, the D2 a bit more rectangular. This is all from memory, so don't make any purchasing decisions based on my recollections.

 

[robertf]

I did some checking and some suppliers show D2 t-case flange is different from the D1 and some show it is the same. Any thoughts on that?

they are different on the front.

tom woods could build a cv for either pattern. back when I ordered one for my 95 with rte 5". I went with the d2 flange in case I broke the tw and needed to put a junkyard d2 shaft in to make it home, but it was pointless since the d2 shaft was too short for that suspension setup. Also the CV guts are different lengths. I think that would change the driveshaft angle enough where one style could vibrate when the other doesnt

 

[discostew]

So, is the stock D2 driveshaft double cardan?

Yes, the shaft I have must have been built for a D1 because I bolted a stock shaft in with no mods. I’ll be there tomorrow working. I’ll dig the stuff out and get a good look at it.

 

[Flyfish]

The tcase vs pinion angles should be the only thing that determines which type DS you use.

 

[p m]

The tcase vs pinion angles should be the only thing that determines which type DS you use.
View attachment 64140
View attachment 64141

It is neither with Land Rover, and it is neither with most of the 4x4s.
The entire driveline is canted back about 2-3 degrees, so the rear driveshaft is almost coaxial with the rear pinion and rear output of the transfer case (in a stock truck). My WAG on why did LR use a rotoflex joint (which is a flavor of a CV joint) in the rear is the geometry of rear suspension - where the top A-arm is a shorter link than the trailing arms.
It's a lot worse story for the front driveshaft - LR is nearly the only manufacturer that did not use CV-jointed shaft until D2 years.

 

[robertf]

theres mathmatical voodoo on the front shaft. its out of phase, angle is way off, and theres a 5lb weight slapped on it doing something