If you don’t have a press or any kind or impact tools then replacing the LCA bushings will be pretty difficult. I’m not saying impossible, but rebuilding the front suspension is a job that typically uses a decent amount of specialty tools. The upper and lower control arm bushings especially can be difficult. There are several threads on home made tools that can work if you want to tackle it yourself. Even just getting the LCA pivot bolts loose can be quite a chore, as those are torqued to 145 ft/lbs.
Once the suspension is rebuilt you will also need an alignment, which again can be done at home but does require some specialized tools. If you haven’t done anything like that before it will also require some trial and error and lots of patience.
Poly bushings are not something that should just be slapped in and called good. They don’t work the same as the rubber bushings, the design and function is a little different, and they need to be lubricated. They also must be checked for proper fit, because the tolerances on the stock part sometimes means they don’t fit correctly. Personally, I recommend that poly bushings should be used with greaseable LCA pins and adjustable strut rods. If you look at who uses them successfully and who whines about them not working right, you find that people that slap and in and try to use them with 45+ year old stock parts usually are the ones that complain about their function. Folks that use them with LCA pins designed for poly bushings tend to have no issues at all. Mixing and matching stock and aftermarket parts doesn’t always work, even when both are perfectly functional on their own.
Unfortunately, taking you car to a shop can have pretty mixed results too. Lots of shops do not have experience with older cars like these. If you don’t have a shop you already use and trust just hauling it to an alignment shop and turning the kids loose might not only be expensive, but it might not give you the results you want.
I do encourage people to do their own work, but, keep in mind you may spend just as much or even possibly more money as taking it to a shop by the time you get everything you need to finish the job. If you’re willing to buy some tools, read the FSM, do some reading here, and put in some time then by all means it’s something you can do.
