NP233 electric shift to manual shift swap

[LiftedAWDAstro]

I want/need a true transfer case with low range so I decided to go with a NP233. Initially I wanted to use all the electronics and wire it in all proper like. After messing with and trying to figure out the wiring as none of the diagrams I found were the same, I decided to convert to manual shift. The reason I went with a 233 instead of a 231 is that all the 231's I have seen pics of have a yoke on the front output and with the 233, the stock drive shafts will fit with no mods.



Pulled the shift motor/encoder off...

[LiftedAWDAstro]

Just for future reference on installing a low range switch for the PCM.

ASV link

[LiftedAWDAstro]

Started making the shifter pivot bushing assembly. I also ordered a cable and a couple rod end clevises for the cable. Going with cable shifted just like I did the SPB. It worked well and makes for only a single hole drilled through the floor.





This shoulder bolt will be bolted to the seat frame and have a shifter handle and cable linkage arm welded to it.

[potskie]

You can always use a 231 later....... they are better for doubling anyways


Is this the start of the monster that I'm sure next year at some point I will see on the front of PBB and a vid on the powerblock?

[LiftedAWDAstro]

No plans for a doubler or for a SAS or any type of wheeling. I am hoping to lift it next spring but we'll see. My money is better spent these days on paying down our debt.

[LiftedAWDAstro]

Got my cable and clevis rod ends today! 1 day shipping from McMaster-Carr! The cable is stock number 1338K21 and the clevises are stock number 1583K12.

[LiftedAWDAstro]

Got a couple things done today...

[photo_van]

Looks good, and the bonus is you probably can sell the module for the cost of the TC!

Gotta say I was disappointed you didn't go with the 242, but if a 233 would have been a no driveline mod to my '98 it would have been hard to resist.

[mdmead]

Very cool!

[LiftedAWDAstro]

The 242 would have been nice but I didn't want to spend the cash on the adapter and then modify the drive shafts. Hopefully I can build the rest of the cable mount and the shifter tomorrow.

[LiftedAWDAstro]

Got the mount and shifter done! Gonna paint them Christmas while I am at work and will install the next week when I am off.

Welded up the cable mount...





Added the cable...





Finished the shifter...





Yeah, yeah...I know the van is a mess! Been raining here for a few weeks so there is a lot of dirt and mud in the van. Next nice day it'll at least get vacuumed out.

[Astrophysics]

That is a great design. I plan to copy your idea for my 2003 AWD Astro next summer.

Thanks for great photos.

Astrophysics

[LiftedAWDAstro]

Go ahead and copy it! The hardest part (for me) is going to be pulling up the carpet so I can drill through the floor and mount the cable and then get the carpet back down and looking good.

[photo_van]

you may be able to save yourself a lot of trouble by just mounting through the carpet and use a cover plate. Slightly different application in the photo, but I screwed the mount under the floor.I really didn't want to pull up the carpet!

[LiftedAWDAstro]

I did that with the SPB and it worked good. I may do the same this time as the trim moulding screws are pretty rusty from salt.