The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Mile Marker for NP203 transfer case conversion….thoughts ?

**kwmech** · 03-10-2022, 04:01 AM

I was doing these back in the 80's, but with a better kit. But with this kit you have to pull the 4x lever into 4x every couple of days to spin the fluid around to lubricate the drive box since the chain is not flinging fluid up, and also overfill the t-case a little. The fluid will still fling around in the gear box but doesn't quite make it to the rear output bearing in the chain box like it should.

03-10-2022, 04:01 AM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,725	Re: Mile Marker for NP203 transfer case conversion….thoughts ? I was doing these back in the 80's, but with a better kit. But with this kit you have to pull the 4x lever into 4x every couple of days to spin the fluid around to lubricate the drive box since the chain is not flinging fluid up, and also overfill the t-case a little. The fluid will still fling around in the gear box but doesn't quite make it to the rear output bearing in the chain box like it should.