43 replies to this topic

[Tyre biter]

Ok, it appears I am missing the bolts that secure the K-Frame 'legs' to the 'side member' (the bit either side of the chassis rails adjacent to the transmission tunnel).
I've had a look at the LX Parts Calalogue (Page 374) and think P/N 272404 are the bolts I am after - refer View A in top left corner of page.



In the absence of being able to walk into my dealer and get these parts nowadays, I need a bit of help from anyone familiar with the whole mount please. I hope to then get something close from my local fastener shop;

a.The bolts are 5/8 right?
b. How long should they be?
c. Are the bolts threaded the entire length or smooth for a portion?
d. What grade tensile are they?
e. It seems there are two sets of washers - P/N 120389 and P/N 7205937 (labelled as '2' in the image). Appart from having to fit a 5/8" bolt - how big are they?

Any photos would be great, but I'll take any advice I can get right now.

Thanks in advance for your help.

Cheers, TB

[hanra]

Mate mine are laying on the bench, I cleaned them up last night. I'll get some details for you when I get out of bed.

[hanra]

This help?

[hanra]

Id have to measure it, but yes its quite thick.

[Toranamat69]

Bolts are measured from the bottom of the head.

[Tyre biter]

Brad (hanra) - that is perfect - exactly what I need - thank you.
My74LH & Toranamat69 - thanks for the tips.
Cheers, TB

[Toranamat69]

I don't have any spare bolts here but the hole in the metal sleeve of the bush is only 10.9mm so the bolt is not 5/8" - that would be 15.9mm OD. 7/16 is still too big at 11.13mm so I would have a stab and say these bolts would be 3/8 UNC. That looks about right from the picture with the ruler above. Socket size is not directly related to bolt OD.

I would try to get them in Passivated zinc high tensile if I were you are because I reckon that would be what the originals are (or should be at least).

Matt

[76lxhatch]

The thread is 7/16" UNC. The bolt head is 5/8" and has a large shoulder on it, the nut is 11/16" (the ones above don't look like factory ones)

[ls2lxhatch]

+1.

I am a bit confused as to which way round the k-frame leg bush is fitted. The parts manual picture above appears to show it the wrong way round.

Edited by ls2lxhatch, 22 January 2012 - 05:31 PM.

[Toranamat69]

I wanted to say 7/16" but the LC (looks like they are the same OD) the one I just measured the thread OD was 10.9mm - maybe it is a bit worn from the conelock nut winding on and off.

[hanra]

The thread is 7/16" UNC. The bolt head is 5/8" and has a large shoulder on it, the nut is 11/16" (the ones above don't look like factory ones)

Unsure if mine are original or not???

[76lxhatch]

The ones in ls2lxhatch's pic are original - that's not a washer under the head, its part of the bolt head

[ls2lxhatch]

The UC parts manual shows the leg bush fitted correctly. The LH and LX parts manuals are wrong.

[Tyre biter]

Thanks eveyone - I'll head try to get to my fastener store today and get 7/8 bolts and 3/8 bolts with bits - will let you know how it goes.

Cheers, TB

[Redslur]

I think you will find mate CB has some bolts cleaned up already to go for you. Check with him first.

Gez

[Statler]

The factory bolts are too long.

[76lxhatch]

The ones up front have a bit of extra length too, a safety thing perhaps...?

[Tyre biter]

I think you will find mate CB has some bolts cleaned up already to go for you. Check with him first.
Gez

Hi mate,
God bless CB - truely a bloody gentleman but I only just saw this now and I'm sorry to learn, as I have gotten the bolts from Specialty Fasteners already. They didn't come cheap either, but I visited Fyshwick in company with the bride today on the premise we were looking at some furniture and wouldn't you know it, we just happened upon the shop where I could dash in to grab something...

Back to the thread; with regards to what fits or not; As indicated earlier, I got both 3/8 and 7/16 bolts and have found the 7/16 to fit like a finger in... a glove!

Pity it fits so well really, because I can't for the life of me get the drive's side in - just can't get it to line up front to rear and given the car is on rudimentary stands, there isn't a lot of 'purchase' to pull the K-Frame forwards from the body. I'll keep trying though, have a bit of a think on how to tweak it and for sure it will sort out, Doesn't really matter right now in any case as I'm spendng the next few days building a deck with my F-I-L and so the Banana will have to wait at while - maybe in the interim the Torrie fairies might visit and align the two holes for me...or, maybe not

Cheers, TB

[ls2lxhatch]

I use a tapered bolt ground off centre to align the leg bolts. The bolt is extra long because I have a CRS chassis kit.

More pictures and tips for fitting the k-frame here.

[Tyre biter]

Thanks for that - sorry to report that link you gave me is just to a larger pic of the same image.
However I think I get what you are suggesting; a long rod through the holes and then used as a lever to align the two holes?
I've had no more luck tonight with a 8" bolt - even loosened the top bolts and even hitched the k-frame to my ute via the old Telstra rope with truckies hitch to no luck.
I'll find myself a longer rod and give it another go tomorrow if I get a moment.
Thanks again and cheers, TB

[ls2lxhatch]

Try this link

[ls2lxhatch]

Those bolts look very similar to the LX bolts.

It appears that the early bolts had a seperate washer for the head and the later bolts incorporated the washer.

[Tyre biter]

Thanks guys - much appeciated.
The good news is that I got the troublesome driver's side bolt in this afternoon!

I tried all the suggestions above but couldn't get the holes to line up by leveraging them and so in the end I got 'creative' with the disc grinder on the end of the bolt, a wee tap with a 2lb hammer and voila!

I even remembered to re-tighten the top K-Frame bolts - I'd normaly say this outcome would suggest that I am learning but alas, like many of my jobs on the car so far, I had to repeat this one as I forgot to put the washers on the bolt after grinding it pointy...

Oh, and ls2lxhatch - that link is a ripper, especially for a noob like me - thanks.

Cheers, TB