# 98 Jeep Grand Cherokee Transfer case noise

**URL:** <https://community.cartalk.com/t/98-jeep-grand-cherokee-transfer-case-noise/76938>\
**Category:** Maintenance/Repairs\
**Created:** [January 25, 2013, 9:43am UTC](https://community.cartalk.com/t/98-jeep-grand-cherokee-transfer-case-noise/76938 "2013-01-25T09:43:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Ghatid](https://avatars.discourse-cdn.com/v4/letter/g/e79b87/32.png) [@Ghatid](https://community.cartalk.com/u/Ghatid)\
**Post date:** [January 25, 2013, 9:43am UTC](https://community.cartalk.com/t/98-jeep-grand-cherokee-transfer-case-noise/76938/1 "2013-01-25T09:43:03Z")

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I bought a 1998 Jeep zj for $900 with a bad transfer case. I’m new to this car repair stuff, but I thought I’d take a crack at it.  
I bought a used 242 transfer case (originally had a 249 with what I guess to have the typically broken viscous coupler) and stuck it in. I also cut the output shaft of the 242 case about 1.5 inches shorter (to match the 249 output shaft length).  
The problem: As soon as I reach 35mph, the car makes a whirring noise of some sort that doesn’t go away until the car slows down to 2-3mph or if I put the car in neutral. Does it sound like the driveshaft or did I get a bad tcase?  
I’ve taken out the front driveshaft to isolate the problem, but it persists with or without it there.  
Here’s a video of it running on stands.