Join Date: Sep 1999
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Re: NP435 conversion???
Definitly a pilot bushing as the NP input shaft was shorter than a my SR-4,the pilot sits in the outer bore of the crank to make up the difference.
Depending on what you are replacing you may need a new clutch plate I believe it is 1 1/8 by 10 spline while the sr4 was 1 1/16 by 10 spline.
NO Excuses in New Egypt ,New Jersy had the AA adapter for 100.00 cheaper than AA plus they are the ones to tell me about the clutch plate .They were very helpfuland the adapter is dropshipped from california AA.They advertise in most of the 4 wheel drive magazines.
I also needed to have the holes on my bellhousing heli-arc welded and redrilled as they were too close to the old holes to just drill and tap by eye and I didnt think it would be strong enough.
I suspend my engine from a 2x4 run from the grill to the cowl since the 258 tilts back quite a bit when removing the rear support skidplate,and comes very close to putting the fan through the radiator,and makes it somwhat easier to align the trans and engine when installing ,Plus you can push the jeep back to clean up any spilled fluids.as opposed to just jacking the engine up on blocks.
you may or maynot want to modify or buy a new adapter for the transmission mount AA also has one of those ...I modified my old torque arm ..it was no picnic.much easier to buy the one they sell.
I have done it twice so far it was no fun either time the first time was my first time replacing a transmission the second time was to fix my screw ups from the first.If I have to do it again I will cut the transmission tunnel out of the body and use a come along to drop and raise from a chain across a beam in my garage ,this is how I did it the second time but did not cut the tunnel....YET.
I had planned on removing and installing the trans and T-case as a unit but they are VERY HEAVY alone together prety unmanagable especially since the D-300 is off center weight.and tends to torque the set up to the side .
Have a few jacks and a few ratcheting tie down straps came in handy.I also had a transmission jack but trying to lift the NP on it was a real challenge thus the comealong. A good supply of cleaning fluid (Brake parts cleaner works very good)Clean rags ,speedy dry,and patience ,A little luck helps a whole bunch too.
Learn to let go of what does not serve you ,but forces you to serve it
why does everyone ask if I am gonna paint it ?