Bravada Pop

[BravadaScads]

Hi there, I am new to the forum but I have to admit I have been a lurker for a while. I decided to join because I feel like I know my Bravada from inside out... only to find out that Bravadas are the most surprising vehicles in the world. I have some questions but also think I can share form some of my experiances.

My recent/not so recent problem:

A little history - I have been fighting a noise/vibration problem on my 97 Bravada for.... well a long time. First I noticed a vibration which imediatly made me suspicious of the u-joints (squeeking when backing up). I discover that the u-joints in my front drive/prop shaft where dry and rusty, changed the shaft as well as the rear joints, smooth as silk. Jump forward a few months and I have a vibration problem, 2 new wheel brgs, again smooth. Back again, then idler arm, sway bar links, shocks, and converter (not related but pain in the rear and noisey). Everything is great.... and then a popping/bang-bang-bang sound begins when I accelerate, but only on acceleration, when I let off the gas it goes away and seems to be quiet on the highway. First thing that jumps into my mind is CV axels but so far I have seen someone say ther upper ball joints caused the noise but this doesn't sound like a ball joint, I can't imagine that no one has experianced this with their Bravie. Any help or suggestions would be appreciated. Thanks.

[Chris Stewart]

Welcome to the site BS,
Do you feel it in the steering wheel, seat and/or floor?

[BravadaScads]

Hey Chris, I can mainly feel the noise in the floor and the pedals. It feels very similar to the noise/vibration coming from the prop/drive shaft but more of a bang-bang-bang, as I said it has been replaced and I couldn't imagine that it was already defective.

[Chris Stewart]

What do you think about a transfercase chain/sprocket slipping? A stick magnet through the lube fill hole might show something....the more metal filings, the more trouble.