Cardan joint in rear driveshaft

[pluton]

Maybe on the later models, but my 89 is IFS and has a DC joint on the front DS.

My previous truck was a '91 Toyota 4WD. It had the double cardan on the front, though I couldn't figure why: The front diff never moves on that system, unlike a solid front axle. Must have been the angle that required it.
I was surprised when I looked underneath my '97 4Runner ( when I got it in 2013) and found the DC on the rear prop shaft.

 

[amalik]

Well Sheeeeeeet, I never would have thunk that a double cardan joint is a type of CV joint. Learn something new everyday, I reckon.

Tim, I'm in the same learning boat.

I just learned through this thread a CV supposedly differs and is distinct from a U-Joint, yet the DC is really a type of CV made up of combined U joints!

As confusing as that sounds, we're dealing with really only 2 joints then bumper to bumper. CV and U, and really it seems like the CV and U accomplish a very similar task anyway except one sits in a half shaft and the other in a DS.

Im going to sleep for now to let that sit in to my brain, LOL.

Sent from my LGMS428 using Tapatalk

 

[Scramble]

OMG, this has to be the worst thread ever.
Reading this i expected the next post to say replace your rubber bands or something.
Axle shafts are being confused with drive shafts.
And it's a cardan, not cardon or cardigan (that's a type of sweater).

A double cardan joint can be rebuilt in spite of what you read.
It's just 2 standard u-joints (aka cross and bearing or cross and journal) in series housed in a common yoke (not yolk, that's in an egg).
It's just a bit more difficult to do.

And the Double Cardan is used (usually) on the FRONT DriveShaft at the T-case end, not the rear DS. It's used on the front because of the short length of the Front DS creates too steep an angle for a standard u-joint to work properly w/o binding or accelerated wear. That's why it's not typically needed on a longer Rear DS.

Use of a DC on a DS also requires a different pinion geometry, you can't just change from a standard u-joint to a DC u-joint.

A DC joint is a type of CV joint, as is the Birfield joint used in Toyota front axle shafts (4WD) and the Rzeppa joint (kudos to the guy that new that one).

I've seen worse threads. The double cardan is in the rear DS on a 3rd gen & Toyota does not sell the parts to rebuild. They try to sell you the whole DS. My Tom Woods DS is built with 1310 U joints & now the DC joint can be rebuilt anywhere.

 

[JayRolla]

Tim, I'm in the same learning boat.

I just learned through this thread a CV supposedly differs and is distinct from a U-Joint, yet the DC is really a type of CV made up of combined U joints!

As confusing as that sounds, we're dealing with really only 2 joints then bumper to bumper. CV and U, and really it seems like the CV and U accomplish a very similar task anyway except one sits in a half shaft and the other in a DS.

Im going to sleep for now to let that sit in to my brain, LOL.

Sent from my LGMS428 using Tapatalk

Yes and jesse at highline uses others toyota cv parts to rebuild it. He is the one that schooled me in the dc being a cv. It does the same thing pretty much.

 

[mtbtim]

I've seen worse threads. The double cardan is in the rear DS on a 3rd gen & Toyota does not sell the parts to rebuild. They try to sell you the whole DS. My Tom Woods DS is built with 1310 U joints & now the DC joint can be rebuilt anywhere.

So, if my double cardan joint ever gives up the ghost and I decide to go with a Tom Woods DS, is it as simple as sending them some money and telling them you need one for a 3rd Gen 4runner? Or, do they require you to give them measurements?

I'm assuming since he's already sold them to 3rd Gen owners, he would already have the measurements in his data base and you wouldn't need to give him the length, flange type, yada yada. You can't tell from the pictures on his website but does his double cardan joint have a ball in the middle of the joint or is it simply two u-joints?

 

[amalik]

[MENTION=50342]JayRolla[/MENTION],

I found an extremely useful picture on Wikipedia. You can see here the design of this DC is essentially exactly what the CV does, except it does it through 2 Ujoints at an angle.

https://upload.wikimedia.org/wikipedia/commons/b/b5/Universal_joint.gif

Sent from my iPhone using Tapatalk

 

[Scramble]

So, if my double cardan joint ever gives up the ghost and I decide to go with a Tom Woods DS, is it as simple as sending them some money and telling them you need one for a 3rd Gen 4runner? Or, do they require you to give them measurements?

I'm assuming since he's already sold them to 3rd Gen owners, he would already have the measurements in his data base and you wouldn't need to give him the length, flange type, yada yada. You can't tell from the pictures on his website but does his double cardan joint have a ball in the middle of the joint or is it simply two u-joints?

You have to give them measurements. Click on "Toyota" on their website & it shows you what they need. They dont keep a data base. Too many variables between years, engine & trans. I assume it has a ball.

 

[csp]

Every DC driveshaft has to have a centering ball or it would flop around all over the place as it spins.

 

[Unner]

[MENTION=7105]Scramble[/MENTION] , what did your DS cost from them?

 

[Scramble]

[MENTION=7105]Scramble[/MENTION] , what did your DS cost from them?

It was around $430 shipped in the fall of 2014. I'd do it again in a heartbeat.