Grind and Clunk sound

Hi I have a 1998 GU patrol 45ltr, when i start driving in the morning after a few minutes i hear a brief grinding followed by a one off clunk coming from underneath then it doesnt happen again for the rest of the journey, does seam to affect anything and only happens again after i have left the vehicle off for a long period iE if i leave it at the station to go to work it will happen once when i start my journey home, if use the car intermittently through the day it only happens once during the initial start. any ideas?

Underneath is a big space. Can you define where abouts, front, rear, middle, left or right side etc etc

middle i think

it actually happens that quickly while driving its hard to tell would say i feel the bump mostly in the middle.

Sticky handbrake drum perhaps?

Quote:

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Originally Posted by Plasnart

Sticky handbrake drum perhaps?

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That was my first thought about it too. I found my handbrake got a little stuck if the vehicle was parked nose downhill.

Thanks Guys,

I left the hand brake off this morning so when i return tonight to drive home i will see if that is the issue..ill keep you posted.