26 replies to this topic

[732doorlj]

Some advice please,its just been pointed out that my 73 LJ front upper bump stop that the lower bump stop hits has been removed. Is there any reason why this would happen. And what my best fix would be TIA

[sibhs]

That would take some serious cutting and grinding.

Another K Frame is the best fix but hard to find a good one the same style as yours. or cut and weld them on off a buggered K Frame like the one I gave away.

 

Marty

[732doorlj]

Some advice please,its just been pointed out that my 73 LJ front upper bump stop that the lower bump stop hits has been removed. Is there any reason why this would happen. And what my best fix would be TIA

Attached Files

•  Screenshot_20220630-151628_Facebook.jpg   87.64K   1 downloads
•  received_3311726969064958.jpeg   59.31K   1 downloads

[732doorlj]

Thanks for your reply Marty

[sibhs]

That would take some serious cutting and grinding.

Another K Frame is the best fix but hard to find a good one the same style as yours. or cut and weld them on off a buggered K Frame like the one I gave away.

 

Marty

[limo]

Would it have been removed due to drastic lowering of the car? I have spare cross members, didn't think they changed again after the early LC that had a different bump.

[732doorlj]

Thanks mate but I don't want to replace the entire x member. As Marty suggested might be a plan to find a write off and cut the pieces off

[madtoranajzedded]

Have you got a better pic.

[732doorlj]

The only pic I can show you is the top of the upper spring housing that as you can see above I have taken the spring and shock out of to replace the wish bones with tubuler

[RallyRed]

Some track cars have that bump stop tower removed. I dont know why. My thinking is only that with say 950lb front springs and comp. shocks, that the bump stop would never see any action, so may as well save a kg or two?.
P.s.the early LC s didn't have that bump stop tower from factory. AFAIK.

Edited by RallyRed, 30 June 2022 - 07:21 PM.

[S pack]

Looks to me like your crossmember never had the compression bump stops fitted to the spring towers which would make it a 1969 or early 1970 LC crossmember.

[732doorlj]

Thanks mate it did have lj wishbones but had a replacement frontend at sometime

[732doorlj]

Thanks Spack,It does have a replacement front end but LJ wishbones mate. Is there anything else on an LC frame that would indicate its an LC and not an LJ.Ta

[madtoranajzedded]

Bottom ca's all the same.so is top apart from early lc having a steel section spot welded to the top ca from where the bumpstop bumps on.

[S pack]

Thanks Spack,It does have a replacement front end but LJ wishbones mate. Is there anything else on an LC frame that would indicate its an LC and not an LJ.Ta

 

Can you post up a pic of the brake pipe bracket on your xmember? The one circled in red in this pic.

 71 LC & LJ front xmember bracket.jpg   230.78K   4 downloads
 

Thanks for letting me steal your pic Maz.

[S pack]

Some track cars have that bump stop tower removed. I dont know why. My thinking is only that with say 950lb front springs and comp. shocks, that the bump stop would never see any action, so may as well save a kg or two?.

I think it was to allow more suspension travel but I could be wrong.
 

[732doorlj]

Best i have in my phone mate

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[madtoranajzedded]

Maybe done to run coil overs bud

Edited by madtoranajzedded, 30 June 2022 - 11:06 PM.

[S pack]

Best i have in my phone mate

No worries mate. At the end of the day Marty has already hit the nail on the head. Either replace the complete xmember or rob the stops from another spare.
 

[jd lj]

It'd be much easier to just replace the whole cross member than to try to cut these parts off another one and try to weld them back on to yours correctly. To do a good job of the welding you'd probably want to remove the cross member anyway so why not just swap it over.

[732doorlj]

Definitely looking like replacing the cross member will be the go.It has been on the road for 2 years with no problems so do I need the stops

[S pack]

Definitely looking like replacing the cross member will be the go.It has been on the road for 2 years with no problems so do I need the stops

One day you may find a piece of road that will make you wish you had the compression bumps stops.

Removing the bump stops may be ok for a race car but I suspect not the best idea for a street car that needs to be able to handle really shitty roads from time to time.
 

[madtoranajzedded]

One day you may find a piece of road that will make you wish you had the compression bumps stops.
Removing the bump stops may be ok for a race car but I suspect not the best idea for a street car that needs to be able to handle really shitty roads from time to time.
 

I dont reckon it would pass inspection without them..you have to have clearance between coils at full bump.

[grumpy xu1]

I dont reckon it would pass inspection without them..you have to have clearance between coils at full bump.

1 would hope it would have already failed the inspection & not been able to get registered to be honest.

[I'm a Red Motor fiend]

Definitely looking like replacing the cross member will be the go.It has been on the road for 2 years with no problems so do I need the stops

You can't have hit any decent bumps yet.

I made the mistake years ago putting an early LC set up in an LJ. With lowered springs on any half decent bump the springs would completely compress with a loud bang and the car would buck.
Changed the cross member as soon as I realised.