Hi Kevin,

The 2.1L Vanagon is not known for breaking accelerator cables. I've owned
many 2.1L Vanagons and haven't broken one yet. I should point out during
major repairs I usually replace things like an accl. cable as a standard
preventative maintenance practice. I would ask you to determine if the
cables are breaking in the same place and if so, what accl. cable stress is
present at the common failure point. Also does your Vanagon have the correct
OEM accl. return spring installed ? If not, a stronger return spring would
increase the stresses on the accl. cable and related linkage.

Regards,   John