Any transaxle dampener on our Grennies?

[Zimm]

Probably both? otherwise ,,with a cv joint all of the impact is transmitted=not good!

Since I'm playing around with devils advocacy here, if this is the solution for vibrations, what vibrations would be cause for concern? Where would they orginate? The driveshaft ballance out of spec? I'd rather have them spend the money on a ballanced driveshaft than use a glorfied rag joint. What else is there to cause vibrations that would require this solution?

 

[Leonidas]

My question ihas not been not about vibrations, but shocks in the transmission line itself due to wheel blocages on or between rocksrocks, for example

 

[Zimm]

My question ihas not been not about vibrations, but shocks in the transmission line itself due to wheel blocages on or between rocksrocks, for example

I've seen plenty of craptastic slip yokes on jeep cherokee tcases give it up, but I gotta say, if something like that was needed as an inline fuse on this truck to protect the rest of an underspec'd driveline, I wouldn't have bought it.

 

[landmannnn]

My question ihas not been not about vibrations, but shocks in the transmission line itself due to wheel blocages on or between rocksrocks, for example

It is a fair question to ask. Flexible rubber couplings are quite commmon on off road vehicles, as you point out part of their function is to limit torque spikes which could otherwise break something in the drive train.

The downside of these couplings is that they are not very durable, and depending on where they are mounted they are only protecting part of the drivetrain. Not uncommon for the hardcore off roaders to remove them by fitting longer propshafts.

On the upside, they are cheap and been around forever (my 100yo Citroen has one).

There does not appear to be any other torque spike limiting device in the drive train, so presumably between IA an Magna they decided it wasn't needed.

 

[Leonidas]

Maybe the coupling isn't so important inan automatic transmission as there is no direct mechanical connection between engine an gearbox, only oil in a turbine?
Different with clutches, single and dual...
Would someone confirm- or not- this supposition?