Rear of car Rumbles at Low rpm's

[DarkWing6]

i would lift the car up and look.

if you grab your driveshaft and move it around you will probably be able to know quick if the csb is really bad. if should have some give, but not a lot. it should feel pretty tight.


does the rumble change with speed? if you give it gas in neutral do you here this or only while moving?

[x68monkeyx]

any way to test if thats the problem?

[SpecM]

I still say csb, center driveshaft bearing.

[x68monkeyx]

It does it when i apply gas, if i apply hardly any to get me moving it dosent do it, but when i apply more it rumbles

[Adrian_Visser]

care to explain a little more? rumble is kinda a vague term is it doin it under load or only when u take your foot off the gas?

[SpecM]

csb? anyone care to second that?

[x68monkeyx]

I just purchased an 87eta with 286k miles on it, rung great minus one problem. When im in 1st and second gear the rear of the car rumbles between 1.5-2.5 rpm's. Anyone have any ideas? Many thanks!