Replacing a old transm. With another one

a) Check for the over-ride button to be not in, or
b) Find a trustable mechanic, ask him to open the transmission and check for if the transm-oil filter is clogged, change it. (Well this happened to me way back in the 70's). If the mechanic says you need to replace the whole transm., change mechanic. Or you can do it yourself.

Radiators on automatics have a separate reservoir for transm. fluid cooling purposes. Didn't you remove the transm. fluid cooling lines from the radiator-a feed line to the radiator and a return line from radiator to the transmission? They are small steel lines that connect on the end of the radiator.

sounds like it is now time for new shocks. they are not to hard to install if you are mechanically inclined,, if not - if you stop by your local Midas* shop it should only take them about an hour to replace. the cost of new shocks depends on what quality and dependability you are looking for.
always ask about warranty when buying shocks. also when you get your Jeep worked on the mechanics will also be able to tell you how well your front brakes are holding up and most shops will grease all your bushings and they do a good job of getting you up to date on other parts that might need some service in the near or distant future,, always ask questions to stay informed about your Jeep.
Have a great New Year,

c...

chek the oil of the transm or the filter of the transm and all the plugs are conected to the transm is electric if dosent work scan your car

your transm. need to overhaul

So go ahead and do it. It's not clear whether you're actually asking a question here. It doesn't help that you haven't stated which VW you have. Beetle, Karmann Ghia (Type 14 and 34), Variant?

If you're asking whether to do it then the old ones are rotten and need replacing, so yes.

If you're asking how to do it then with respect that's a question far beyond the remit of a simple free question and answer site like this. It's not overly difficult in itself if the vehicle is mostly solid, but you need to be able to weld and you ideally need to remove the body from the chassis. But we're talking of a 41 year old car and only you can see what condition it's in: removing the body (normally an easy job) might not be if the shell is also rotten and the chassis itself may well collapse just behind the front axle tube as soon as the body comes off. Once the body is off it may mean that you're better replacing the chassis entirely. One thing is guaranteed: whatever rust you can presently see will be just a fraction of what's really there.

There are entire chapters of specialist VW restoration books devoted solely to the question you've asked, and so there's no point in re-inventing the wheel. Buy or borrow a suitable book and join the VW owners' club in your country. The knowledge and expert advice you'll gain will far more than repay the financial investment in both.

Take to a mechanic. Obviously, if you have to ask this question, you don't have the mechanical skills to do the job.

first check transm. oil level is ok,
second try by change transm. oil strainer , maybe this resolve your problem and save your money, go to another mechanic

Ask what failed? exatly, and what is needed to replace those parts and what is the price. and what cause this problem.

Tony,its not worth it to mess with the clutch---goto a junkyard and buy an ac compressor.