My brothers aw4 just took a dump on him and desperately needs to replace it. it's his DD and he's got no way to get to work without it. His xj is a 91 so I believe he needs a 21 spline. Just needs to run well and be reliable. The cheaper the price the better. Or if anyone knows of a good shop to rebuild it at a low price that might work too. Thanks in advance for any help.