Changing out Auto trans for Manual

[chunter]

I am considering installing an NVG4500 in place of the automatic in my 93 W250. Are the necessary parts still available like the clutch/brake pedal assy etc?



Thanks,

C. D. Hunter

 

[1stgen4evr]

Parts availability

I don't think you will want to pay the price for dealer parts even if they are still in stock, which I doubt, but everything you want can be had from a salvage truck. I have not done the 4500 route but have the parts to change an automatic to manual using the Getrag setup. I read in the posts here that many are going with the aftermarket rebuild on the automatic and are getting very good result. I have two automatics and two manuals. Except for having to shift, I prefer the manuals two to one over the automatics. If I had the money, I would try an aftermarket rebuild. It is at least possible that the later transmission with a lock up converter would give near equal service to the manual. Should you elect to go with an automatic, be careful who you chose to do the work. Not many are familiar with the needs of the Cummins powered application.



But to your original question, you can do the swap and you won't have to build anything from scratch. You will need different drive shafts. You will probably have to modify the crossmember for the rear of the 4500. You will have to do some junk yard digging.



What you are wanting to do has been done. Hopefully someone who has done it will offer better suggestions. An expression I have heard associated with the computer/electronics industry is 'plug and play'. This is not plug and play.



From the agravation I have experienced with my automatics, I suspect I know why you want to change out the slush box. TPS, heat buildup, OD repeatedly shifting in and out.



James

 

[phillips5]

I am lucky enough to have a doner parts truck and will be doing the same thing hopefully soon if I get my 90 5 speed down here to Verginia. That slush box can drive me crazy. I know that one can get the slush box corected but it isn't cheep and I don't care what any body says no auto can put as much engine to the wheels as a stick can.

 

[Stomp]

Hang on to the stuff you take out, because before long I would like to convert mine to an auto. If you do the swap let me know. I would have the petals and some other stuff, but I am not quite ready to do the swap.



Stomp

 

[chunter]

Gents - Thanks for the info.

All of my previous trucks had manual trannys and I am having difficulty getting used to the juice transmission. Once I get a little green saved up an I am going with a NVG4500 or NVG5600.

Also, it is good to be running a truck with 12 valves, leaf springs @ all 4 corners and an NP205.

 

[EZeis]

The clutch pedal was still available from Chrysler about 6 months ago. Mine broke and I bought a new one. Cost me about 100 bucks, but at least it came with a rubber pad, guess that what pushed it to 100 bucks lol! I check to see if the brake pedal was still available at that time and it wasn't anymore. Nothing like a clutch pedal breaking on ya while driving.



Earl