97 SL320 driveshaft center u joint replacable?

[97 SL320]

I've looked on Peach Parts and they don't show a center drive shaft universal joint. The caps are staked on and the inner part of the yokes looks to thick for a clip on a replacement joint bearing cap. Does the aftermarket offer u joints?

When flexing the joint on my spare drive shaft, I can feel a notch. This notch wear occurs because there is little flexing of this joint. As a side note, this notch wear can be a source of vibration if the drive shaft has been removed and installed in a slightly different position or in another car.

Thanks