The electronic controlled trans 722.6 started in 1996. Unless it has been replaced with an updated one (most probably have) it was not a great trans til the 98 modifications. Probably the best durability will be had from a 722.3 trans. I'm not exactly sure which trans the early cars have (a 772.3 or 722.5). Both are pretty good transmissions. I would probably prefer any of the 722.6 units if cost was no issue.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician