the most i know about ColtVista/VistaWagon axles is that the automatics and the manuals share the same axles, and one of the axles is specific to Colt Vista/Tredia/Cordia/Elantra, while the other one comes off just about any CSM product from 86 to 92, but it's been so long i can't remember which one is which.
This I have found in my research since my initial post here. Thanks for the confirmation and help!
That is, quite the list of cars you have going on there.
Wish I could add more to help with trans and axle situation, but I would suspect the following:
Early FWD transmissions may share center diff parts with the later 89+ generation, so if 100 series or 200+ series being a size split point, would mean you have 25 spline inner axle cups and possibly the same diff setup as KM210/W5M33/F5M33 type diffs. If you can confirm that, then you have all the axles you can shake a stick at, with regards to most if not all AWD products in that era; find the compressed axle length to suit your current parts in hand. Later 92.5+ especially in turbo FWD flavor, went to 27 splines due to torque increases at only 1-2 wheels versus splitting among the 4 with AWD. RockAuto carries tons of axle parts, so it would be best to start there and see if they list any axle information in terms of length and what not. Certain transmissions may have deeper/longer axle stubs, so pay careful attention to that detail. I wonder if some of the guys here will chime in with axle information and more cross over stuff. There is a van section here, and even a van forum on FB, dare I say it. haha Lots of our members here lead dual lives between FB and the site.
If you have your axles out and can measure and photo document them, any axle manufacturer that has an extensive list of products will be axle to match you up with a proper fitting part. EMPI, Cardone, SurTrack, Trakmotive, APWI, etc.
I'll link to a pic that RockAuto uses to help distinguish overall length, etc.
I ended up with a trans out of a '93 GST FWD. Therefore, 27 spline axles as I found out very quickly when the CSM axles didn't work. Ordered '93 DSM axles, and they fit the transmission perfectly, and slide into my spindles, however no matter how I searched, I could not find a set that were the right length. Eclipse FWD ones were closest, but are an inch too long.
The other issue is that the outer stubs, where they seal off to the spindle, are larger than the standard stubs from the CSM axles. Tried wheel seals from the DSM, and they're too large to fit the spindle opening. Tried having the old stubs swapped onto the new axles, and the driveshaft shop said they wouldn't match up well enough to be compatible. They also said they wouldn't shorten the shaft.
So, now I am looking for a shop that will not only shorten the axles, but effectively use part of the original CV shaft section and weld it and balance it onto the new shaft section at the correct original length to create some one-offs to fit my car, as it will get a 4G63T here soon. Just trying to make it all work in original form first!