I bought a reman NV4500 from, man-trans out of Tallahassee, having a guy put it in, knows what he's doing, anyway, got the old one out, went to put the new one in, would go all but 1/4-1/2" in. So he pulled it out, checked some measurements, spline etc, put it back in, same thing, any ideas as to why it won't go in all the way? I'm wondering if the pilot bearing is making this happen, or something else. Anyone have a problem like this? Its on a 1994 2500 cummins. Thanks

 

did he check the pilot bearing inside diameter and compare w input shaft diameter? gettn in that far and it not goin any further suggest its something to do with the pilot bearing

 

I don't know, will find out tomorrow, wonder if the offered 2 different size pilot bearings?

 

I noticed on the tranny I bought, has the upgraded mainshaft, wonder if this is the shaft that goes thru the clutch, into the pilot bearing. Being called upgraded, would that mean it may be bigger? thanks

 

its VERY possible check the diameter of the end of the input shaft and compare with old one if you still have it. if not then measure the bearing

 

Input shaft and main shaft are two different things. The only upgraded input shaft is the 1.375" shaft. If its gone this far, it fits your clutch. Have you tried pulling it in with the bolts? Sometimes you'll have a bit of an angle on the shaft vs. the inner race. Use the bolts on the bellhousing to square it up and it'll usually go in fairly easily. You can also lift the front of the engine to tip the back down a bit, and you can wiggle the tranny a bit easier. Making it square is the biggest thing.

 

Good catch Tate i seen main shaft and my brain interpreted input shaft. and a bit of warning on that bolt tip. only use the bolts to square it not to pull it together, that can result in damage to the pilot bearing and having to remove the trans and do it all again

 

Thanks guys, I'll tell him to jack the motor somewhat, and the bolt thing, actually I think he said he did the bolt thing, but did'nt want to force anything. Thanks

 

well got it in, problem was on the new trans, the spine had a slight burr on it, filed it a tad slipped right in. Thanks everybody.