yep no worries
Please note the MA61 Rack Ends will not fit the AE86 Rack,
The ball joints for the MA61 are about 53mm while the AE86 (which are reported at the same as AE71 KE70) ball joint are 47mm, so it will screw into the end of the rack BUT it will not clear the rack housing so you will have a reduced lock to lock at the rack by about 53mm.
Not sure about the RA60 ball joint sizing.