fremec

Can someone give me some info,doing a conversion from auto to standard on 93 d250 diesel,Does the belhousing that had a getrag on be used for an NV4500 trans. I know the input shaft has to be changed,anything else?

oliver foster

Bell housing or adapter plate that the starter bolts too?

Advanced Adapters has a custom bell housing for sale so you can re-use your 1st gen adapter plate and starter [auto OR manual] for the NV-4500 swap, BUT you need the Getrag clutch fork to make it all work.

A diesel NV-4500 has the same input spline as a Getrag...

cougar

Don't forget about the cross member, there are differences between the 2.

oliver foster

Swapping to a NV-4500 means neither 1st gen crossmember, an auto or a Getrag, is going to be a bolt in affair...

thrashingcows

Yeah the NV4500 2wd conversion is a lot tougher to get a working tranny cross member....mine was a large piece of channel across the frame rails with the stock NV4500 2nd Gen tranny mount. I tried modifying a 1st gen 2wd unit to use on the NV4500 but could not make anything work, even tried cutting and piecing one together....again not go.

fremec

Another thing someone mentioned to me that the 5.9 with automatics dont have a hole on end of the crank for the pilot bushing,is this true or just BS?

oliver foster

Sounds like BS to me.
I have done lots of auto to manual swap on 1st gen 5.9 Cummins trucks.... never had that issue.
Installing a late 70's 360 motor out of and auto in my old '69 manual shifted 'Cuda ...That I had an issue with the pilot bearing fitting in a slightly smaller pilot bearing hole.
I would not trust these "experts" info.

dodgenstein

Aren't the pilot bushings or bearings located in the flywheels of a Cummins?

fremec

Thanks to all you guys for your answers

edwinsmith

When I replaced my clutch and flywheel recently the pilot bushing was in the flywheel. The crank makes no difference pilot bushing wise. I don't know about the auto trans torque converter as to whether it locates in the crank or the flex plate.

Edwin

oliver foster

The 1st gen flywheels usually come with a bronze pilot busing.
The 2nd gen or aftermarket flywheels come with a needle bearing in the flywheel.

66fora69er

I just did the reverse of what you are doing and had to source a different motor plate (bell housing) for the A518. The manual plate is deeper. I have the fly wheel and motor plate if you are interested. To be sure they are right for your application I can get the part number off the plate if needed. Good luck with your swap.

fremec

Thanks to all of you for your feedback,Also do I have to change my ECM box or does the Ecm box from an automatic would work on my standard conversion?

fremec

Doing a trans swap ,auto to standard ,do I have to use the ECM from the standard or will the automatic 1 work? 92 d250 diesel

oliver foster

The auto PCM will do just fine...