Recon1342
Recon1342 Reader
12/1/19 6:10 p.m.

In reference to my current project, a ‘90 Ramcharger- https://grassrootsmotorsports.com/forum/build-projects-and-project-cars/ch-1-in-which-recon-gets-his-forever-truck/161523/page1/

The factory A518/46rh trans is getting tired, and it will need replaced. Occasionally slips, OD doesn’t work, and I’m pretty much waiting for it to die. 

So, the question is this- What all parts do I need to find to do a manual trans swap? I’m tired of the slushbox and want to put in a NP435 or similar. Help me out, please!

Recon1342
Recon1342 Reader
12/1/19 10:34 p.m.

Also, if anyone has any parts for sale, that would also be appreciated!

Georges1991
Georges1991 New Reader
12/2/19 2:00 a.m.

Cooter on here is your guy. He knows well... pretty much everything about these trucks

ebonyandivory
ebonyandivory PowerDork
12/2/19 3:23 a.m.

In reply to Georges1991 :

NV3500. OD, good 1st gear. Nice to have the 0.73 5th gear as opposed to the 1.00 4th of the NP

https://www.dodgetalk.com/threads/auto-to-manual-swap-1990-w150.365457/

Recon1342
Recon1342 Reader
12/2/19 10:16 a.m.
ebonyandivory said:

In reply to Georges1991 :

NV3500. OD, good 1st gear. Nice to have the 0.73 5th gear as opposed to the 1.00 4th of the NP

https://www.dodgetalk.com/threads/auto-to-manual-swap-1990-w150.365457/

OD is not really needed on this one. It’s a trail/dirt road rig, and the morning commute is no faster than 45mph. Trying to make the swap as painless as possible... 

 

Cooter
Cooter UltraDork
12/3/19 5:51 a.m.

You would be best off starting with a parts vehicle.

You need the bellhousing (for a NP 435 that will accept the CPS, or one modified for it), trans with a 4wd adapter to mate up to a round pattern NP/NV style transfer case, trans mount, pedal assembly for a manual trans, linkages, floor mods, and very likely a pair of driveshafts, or modify the lengths of your existing ones.    It will be a total PITA to source all of that piecemeal.    

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