If you can do this yourself (replace boots), and have done it many times before (so that you know what it is you're looking at underneath and inside when you do it) it is a no-brainer to save money. Otherwise for the time and effort (shop $) it's much easier to give the go-ahead for a replacement axle. Aside from the cost of parts the amount of work is much the same. And a dying set of CV joints is not going to be saved by fresh grease and a shiny boot. If through some fluke the split or cracked boot is caught early it is a bonus but majority of folks blithely drive until they hear clicking or grinding noises, and 'then' suddenly discover there is a crack or a split in the boot. Is it chicken or the egg that came first?
I wouldn't spend money on new axles but would repalce the boot, put the car back together, and see how it runs.
It's a pretty simple job to replace the axles later if they need it. On an older car there are so many other things
than can go wrong and turn it into scrap you don't need to add the cost of rebuilt axles.
note: since you say you have the motor and transmission out I assume you're doing all the work yourself
and not paying for someone else's labour.
I wouldn't spend money on new axles but would repalce the boot, put the car back together, and see how it runs.
It's a pretty simple job to replace the axles later if they need it. On an older car there are so many other things
than can go wrong and turn it into scrap you don't need to add the cost of rebuilt axles.
note: since you say you have the motor and transmission out I assume you're doing all the work yourself
and not paying for someone else's labour.
Yes, soon as it warms up I'll be pulling the motor and swapping the transmission for a 5 speed.
Ok I was thinking probably better to just replace both while the transmission and motor are out. One has a busted boot I know for sure.
When the motor and tranny are not in the car is a perfect time to replace inner tie rod boots and driveaxle boots. If you're not sure about condition of the axle CV joints get the boots off clean things up and take the parts to a mechanic and get his/her opinion. New grease and new boots are easy to do when the parts are not attached to a car, and a darn sight cheaper to work with!
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