knocking wishbone bolt-oval subframe!

[paultownsend]

so i have had a knocking for a while. turns out its the wishbone bolt that goes through the rear bush/subframe.
i picked up, and torqued up new bolts from VW. still knocking. took them off for another look and the subframe hole looks ever so slightly ovaled. what options do i have?

new bolt obviously, but would i be better using a high tensile steel bolt and put some mega torque on it?
i tried torqing up the old vw bolt (stretch bolt) but it just went soft.

could i try fit a new bolt then spot weld to subframe?

[Jarrold06]

This happened to me I got a new wishbone stopped took it off again as was trying it to see if it would stop to then put my new bolts in and it was sound till my mate cross freded the bolt for anti roll bar link so had to get a new wishbone

[Wazzzer]

The subframe does have a slight bit of movement via the holes anyway.

It will need tracking again once you have taken it off

[paultownsend]

@ wazzer, do you mean the holes the the subframe where the wishbone bolts go through?

I have just had another look and compareed both sides. I do not feel this is the problem. But it still knocking. and you can feel something knocking. the bush is a brand new lemforder r32 item.

[paultownsend]

i fixed it! i fitted poly ARB drop link bushes a while a go and basically they are crap. also the bolts were seized, and i may have done them up too tight! all greased up and all new stretch bolts. again! back to the OE drop links me thinks!

[Wazzzer]

ha good stuff mate