THE PORTAL HUB - Pinzgauers, Haflingers, Volvo 303s and more!

Anyone done this? Is it worth the effort or will the tools & parts exceed the cost of buying replacement? I have a shop and a decent tool selection, but don't want 2 months of downtime only to spend more than a new unit.

I'm in the same boat, ran a little low on fluid and 4th sounds like a jack hammer now

I assume we are talking about a manual 5 speed 710/712 transmission
(I've just had the ZF 4HP22 for the 718 rebuilt....auto's are something I leave to the experts).

Depends what's wrong with the transmission, but it's a fairly basic, resiliant unit.
The gears, shafts, syncronising rings, etc are quite expensive, but unless you've done some major gear/shaft damage a basic rebuild involving bearings, seals etc is relatively simple and cheap-ish!

Ran it low on oil, I'm fairly certain it needs new shafts and syncros

Unfortunately as mentioned shafts and gears are fairly pricey parts....however I'd strip it and check out exactly what is damaged before lashing out on a new/replacement box.
Bear in mind, shafts can be metal sprayed and ground, the same with gear bores, larger diameter (imperial) rollers can be fitted etc, etc so repair is possible.
Anything can be rebuilt, it's just, is it a cost effective option as opposed to getting a replacement unit.

How did you run it low on oil?.....Did a seal let go?

Trying to save the Pinzgauer owners some money. If you have a Pinzgauer and having difficulty shifting under normal operations don't let it go. Transmissions are not getting any cheaper and the supply is limited. If you think you have problem don't let it go until you have a problem. Most problems if caught early are not that bad. Jim can chime in if he wants but most problems can be solved relatively cheaply if caught early.

We have a local company we have used on and off for years to do oil analysis for a couple of customers. Most of the time we don't do it but when we suspect a problem or a customer raises an issue we will pull a sample for analysis. Usually a look at the magnetic plug tells us enough but on transmission issues it might not be a bad idea. If you think yanking a transmission out and shipping for repair is expensive run one to the point of grenading it, removing, shipping and repairing. Depending on what breaks it can be expensive if a shaft is damaged verses a bearing.

Cheers,
Scott

New unit, Ha, Ha,(finding 1) that makes me laugh Usually cheaper to fix if you don't run it dry
The parts you pray are good are #1 Case,#2 main shaft, #3 cluster shaft(5th,4th, and 3rd driven gears are press fit @200deg F).
Basic ZF trans, it's not so much the tools but there is a learning curve on assembly/diss-assembly procedures.
With out bell housing, shipping weight is around 75-80 lbs.