Rubicon

[lockworks]

Has anyone heard that the Rubicon transfer case makes more noise than the standard wrangler TFC? I took mine to the dealer for a slight noise while under way. He told me that this was a common complaint of the Rubicon and the have a grommet that replaces the transfer case vent and directs the noise away from the cabin? Sounds like BS to me but what do I know. The also told me that many first time Wrangler owners hear these strange but "normal noises". Any comments, ideas? Thanks, Jeff

[fredjacksonsan]

Yes, it makes more noise going to 4lo. The regular Wranglers have a low range that's 2.7 : 1. The Rubicon has 4:1 ratio for low range, so it's harder to engage and you have more gear clash. Just slow down to barely moving to reduce the clash.

Going to 4hi should be a quiet procedure.

[wilwith1l]

It's louder, because of the teeth count of the 4:1. But drain it and run 75W140 Full synthetic, and it'll quiet right up.