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Topic Review (Newest First)
03-20-2012 09:50 PM
Nubby55 What did the 4 bangers have before 91?
03-20-2012 05:57 PM
Ibuildembig You bet!
03-20-2012 05:54 PM
yjJEEPyj Ok sounds good. Thanks for the quick Reply
03-20-2012 05:46 PM
Ibuildembig you have 23

only the 4 poppers after 91 got the 21
03-20-2012 05:42 PM
How many splines Does my Np231 have?

I have a stock NP 231.. 1994 4.0 yj.. How do i tell how many splines do i have? 21? 23? I didnt know if they came stock 21 and you could upgrade to 23?

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