I have an 88 rex HF and i want to know if you could still use the HF axles with the D15B swap or would it be better to swap them out for something else. Im going to replace them anyways because they click when I turn, but I don't know which route to take.

 

yes, you can use stock eveything, that motor is basicly a plug and play motor. take the old one out and put the new one in the same way,