Im adding about 81/4 inchs of lift to my xj and im guessing im going to need a sye or extended driveline i have read tons of articles and i guess you need both i was wanting to know if anybody on here makes whatever is needed and sells them i have a 87 with auto tranny think np231 rear dana 44.. i guess theres nothing needed for front axle only rear but i could be wrong ..if someone would please let me know if they make them and how much figureing guys on here would do it instead of ordering from somewhere else..thanks