No matter what brand you must check axle length, as in compress length, to make sure spline distance etc match to old axle
before installed.I have many axles boxes and catalogs say axle fit only to have wrong part in a box that's too short/long, wrong splines on either/both CV, etc.
Don't just go by overall length in a catalog because many are not same as OE in a number of ways and that number doesn't matter much to the car. Or worse have different CV styles and that number still means too long/short when installed.
Axle too long can wreck the trans.
Too short can instantly blow out inner CV.
Is nice to take old axle and give as core at same time when you buy but don't until you are done and make sure they work for days at minimum.
Even if you install a part that day, store can send all cores to distributor/warehouse in minutes to hours. Many stores have deliveries that take core back too. Some have several parts deliveries per day.
IOW if a store can't fix a bad new part that day so you think will return it... you still need the old core to go to another store but this store already don't have it.
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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave