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1,808 Posts
Before I start " yes I have searched my ass off".
I have an 85 CJ7 with a freshly built 258, t-5, and a flipped d300 with Dana 44's front and rear. I know the t-5 is a time bomb so I am looking to find another trans and have it ready to swap in when the t-5 craps out. I am not in a rush since the t-5 is holding up so far, so I can shop around for the best trans option. From what I have seen the NP435, SM465, SM420,T18 and T19 will all work with adapters. Both AA and Novak adapter for all of these trans are around $500 give or take a few bucks.
Will any of these trans bolt into my setup (258, d300) without any adapter?
From what I have found:
-SM465/SM420 Will need bellhousing modified and t case adapter
-NP435 Will need bellhousing modified (minor) and t case adapter
-T18 so many different versions but it seems like they need t case adapter
It seems like some guys were referring to the dodge t18 as a possible direct bolt in but I could not find anything to confirm this.
I know I have a 10 spline front output and 23 spline rear output on my d300 and that no matter what I will need to modify my cross member to secure the new setup.
Any help would be greatly appreciated.
I have an 85 CJ7 with a freshly built 258, t-5, and a flipped d300 with Dana 44's front and rear. I know the t-5 is a time bomb so I am looking to find another trans and have it ready to swap in when the t-5 craps out. I am not in a rush since the t-5 is holding up so far, so I can shop around for the best trans option. From what I have seen the NP435, SM465, SM420,T18 and T19 will all work with adapters. Both AA and Novak adapter for all of these trans are around $500 give or take a few bucks.
Will any of these trans bolt into my setup (258, d300) without any adapter?
From what I have found:
-SM465/SM420 Will need bellhousing modified and t case adapter
-NP435 Will need bellhousing modified (minor) and t case adapter
-T18 so many different versions but it seems like they need t case adapter
It seems like some guys were referring to the dodge t18 as a possible direct bolt in but I could not find anything to confirm this.
I know I have a 10 spline front output and 23 spline rear output on my d300 and that no matter what I will need to modify my cross member to secure the new setup.
Any help would be greatly appreciated.