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Old 04-09-2012, 08:17 PM   #1
Join Date: Apr 2012
Posts: 4
Question 4.0 swap question

Hey guys i am putting a 99tj 4.0 into my yj that had 2.5 both are 5 speeds.ive got the complete swap with ecu harnesses trans transfer case and front driveshaft. I know i need to convert the new motor back to ob1 with a 92-95 harness fuel rail and ecu. I read somewhere i need to change the FLYWHEEL? Does anyone know anything about that? I cant find the post i once found it in and never heard of that before. Thanks bob

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