Question: Howdy, looking to rebuild my transfer case, thus looking at your rebuild kits. The problem is when I shift into low range 4 wheel, I get a grinding noise and it won't engage or will pop out real quick if it did engage. 4 wheel high seems fine. So any info as to what you think is wrong would be great. Thanks Answer: From your description it sounds like the front bearing in the front output shaft is failing allowing it to pop out.  We would suggest that you start with our bearing rebuild kit it fits NP205 in Dodges 1989 to 1993 is our part number TRSBK205D, your cost is  $237.97 plus S&H.If you need addition technical help give Scott a call 888-824-2012 he can help you.  To place the order call the same number and ask for Adam, Connie, or Joe. You can also visit our website to order, https://shop.midwesttrans.com Thanks