I suspect by "motor", you're referring to what we would call "gearbox" and what Chrysler terms "chuck".
As an aside, IF the fluid in the unit is red in color, my experience with hoses indicates that only a fluid change to a Genuine Chrysler-spec power steering fluid for the model year of vehicle you have might be all that's needed, or at least might help. In our Chryslers, as they went from recently-new to "used", I always kept the correct fluid in them, which is clear and a little waxy looking. NO seal leaks or seeps through the rubber in the hoses. Period. But if the fluid in the cars I bought had a red tint, there usually were seeps and such. I drained the reservoir, replaced that fluid with Chrysler or GM Power Steering Fluid (this was in the 1980s), repeating as the flush progressed, and the seeps through the rubber in the hoses stopped. IF here might have been some exterior o-ring leaks, they were fixed, but the basic gearboxes have never been into. Perhaps I'm lucky, but on multiple cars?
In the USA, Valvoline has a line of "Max-Life" lubricants which are for high-mileage vehicles, so these lubes have a small amount of "seal conditioner" or "seal sweller" additive to help lessen/stop leaks from seal wear against metal shafts, for example. That fluid is clear, too.
The issue with seal leaks against metal shafts is that with time, the seal can wear a shallow groove into the shaft, which means that even a new seal will not stop the leak for long, as it too wears. Many times, replacement seals are repositioned slightly in their metal housing, to put the seal surface in a slightly different location where "new" metal can be sealed against, sometimes.
So, although many of the seals that might be leaking CAN be replaced, you'll probably be better off in the long run to get a reman unit, keeping your existing unit and paying the core charge. Places like RockAuto.com probably sells them, as do other USA auto supply chains. There are a few Chrysler-specific steering gear rebuilders/vendors in the Indiana and Ohio areas. Firm-Feel and Steer and Gear are their names. I have no personal experience with them, but you might contact them for information and "how to proceed", remembering what business they are in, at the same time.
Rebuilding a power steering gearbox can get complicated and require many special tools and such. NOT something the average mechanic might undertake with just wrenches and sockets. Changing the outer shaft seals and such might be the easiest things to do in the garage, BUT as others in other forums have discovered, their gearboxes also have enough wear on their internals that they can't be rebuilt (worse case scenario). As a result, they take a different course into the Borgeson website for upgrading to a later model gearbox (usually from a late-model Jeep Grand Cherokee application) for "Modern Feel and responsiveness". More money but a good alternative for continued parts support of an OEM application.
I'm speaking in generalities, not knowing which specific model year of Chrysler product you might have. Others might have more specific information and recommendations.
CBODY67
