?click, clack ,knock, thump?

[33custom]

when i take off sometimes there is this noise I cant explain it, thump click something... it is coming from the back of the car when under a load and shifting my inital thought dive line loose, i am starting to think its the ford 9"


any thoughts?

[450dude]

it could be you possi unit what kind is it

[racerboy1a]

Maybe exhaust pipe(s) tapping the frame? I think I heard something like that during my go-karting. The clearance between the pipes and the frame is very close.

My $.02.

Racerboy1a
#99 347/TKO 3 link, coupe

[33custom]

I am running a trutrak(sp)

[Tim Whittaker]

Mine does it mostly when I back up and in my case, it's the differential.

[stang_killer]

I get some in mine. I can feel it underneath me. It is the Exhaust tapping frame. Only under hard load.

[ksuhre]

If you can hear clicks, clacks, knocks or thumps, you have way too much muffler or not enough horsepower!

Sorry, not very helpful, but I couldn't avoid responding...

[Great White North]

Bad U-joint?

[33custom]

Originally Posted by ksuhre

If you can hear clicks, clacks, knocks or thumps, you have way too much muffler or not enough horsepower!

Sorry, not very helpful, but I couldn't avoid responding...

i thought the 2 1/4 exausht was plenty for my 500 ish hp motor

[450dude]

trutraks are known for making tons of noise

[33custom]

makes me think the rear end is going to fall out under a load...

[450dude]

i guess i would jack the car up turn the wheels by hand make sure there is a little play not a ton and see if the wheel will move up and down in and out it shouldnt

[33custom]

good idea will do

[Olli]

I have a True-trac. Completely silent.

Olli

[ken schertzer]

Mine does the same, from reverse to forward the slack in the ring gear and axle splines. If you load out the slack one direction then go the other, I get a sound almost like hitting the ring gear with a hammer, a clunk/clang sound that does not sound good, but I just figured it was the solid mounted rear diff.
(I hope so anyway!) http://www.ffcars.com/forums/images/.../confused1.gif
Ken

[33custom]

trying to chase this down.... it even does it from first to second.