I have an 2001 F150 XL 2 wheel drive with a V6. When I start out in reverse I get a small growling sounds then it's OK. It only happens in reverse, I was told it is probably the Tranny mount is lose or cracked but it's tight and doesn't looked cracked. If I have it in reverse with the brake on and rev the engine it gets a little worse. Does anyone else have this problem or know of a solution? I don't want to wait till it gets bad enough to make it obivous.