L34 Question
#1
Posted 10 February 2008 - 07:55 PM
#2 _lx5008_
Posted 10 February 2008 - 07:57 PM
is that you byron ?Anyone know what is different about an L34's upper control arm, engine crossmember and steering arms? I'm just wrecking out an LH SLR that has a few L34 bits on it. It has L34 front calipers and I just pulled them off to stick them on Ebay, but I noticed that the L34 has a different part number for the above 3 items and wondered how to tell if the ones on this car are L34 or not. I remember years ago buying a complete NOS suspension and brake upgrade kit that had every part in it required to convert an SLR5000 to L34 specs in suspension and brakes and it also had the upper control arms and stubs, but the stubs aren't listed as a different part number.
#3 _CHOPPER_
Posted 10 February 2008 - 07:59 PM
#4 _CHOPPER_
Posted 10 February 2008 - 08:04 PM
#5
Posted 10 February 2008 - 08:10 PM
I've built a few LH-UC's before using HQ-WB stubs and HZ PBR calipers with normal Torana steering arms and it all fitted OK, so I wonder why the difference particularly if L34 had rear mounted calipers. How can I pick these different steering arms from normal ones?
Byron
#6
Posted 10 February 2008 - 08:10 PM
#7
Posted 10 February 2008 - 08:13 PM
Even A9X didn't
It should have HQ stubs
HQ style calipers with hose inlets at the top (Cast iron PBR)
The rest I believe is the same as normal LH unless they beefed them up but I don't believe it was the case
Not sure on the A9X steering arms... don't think they had them either
#8
Posted 10 February 2008 - 08:14 PM
#9
Posted 10 February 2008 - 08:34 PM
#10
Posted 10 February 2008 - 08:46 PM
UC against an L34 is on the right
#11
Posted 10 February 2008 - 08:53 PM
With those second set of upper control arm mounts the L34 must have pioneered some parts of the type 1 RTS that appeared mid LX. Lowering the upper control arms was how Holden achieved the more negative camber prior to A9X/UC.
You can actually see that Holden then raised the upper holes up higher for A9X and UC. See that adjacent to the UC upper bolts the steel next to it goes straight into the top plate, but in the earlier ones it curls inwards? You can't drill those early crossmembers out higher for A9X/UC upper arms as the bolts don't fit without modifying the side bits.
Edited by yel327, 10 February 2008 - 09:00 PM.
#12
Posted 10 February 2008 - 09:21 PM
#13 _JBM_
Posted 10 February 2008 - 09:56 PM
As well the HQ KPI is not the same as the Torana, were the upper control arm mounting holes moved down to compensate for this? My mounting holes look much lower than the ones in Byrons pic. The massive block for a bump stop looks similar on mine.
James
Edited by JBM, 10 February 2008 - 10:04 PM.
#14
Posted 10 February 2008 - 10:11 PM
#15
Posted 10 February 2008 - 10:44 PM
#16
Posted 10 February 2008 - 11:01 PM
Not a single one had UC upper arms
Even the 201km car
Maybe some did and some didn't
#17
Posted 10 February 2008 - 11:15 PM
#18
Posted 11 February 2008 - 05:23 AM
Then the L34 parts supplement is wrong.Ok you asked the question I answered it, the calipers are on the front on an L34 simple. James, you have A9X calipers there
Anyone know what is different about the L34 upper control arms? With the calipers on the front it makes sense that the steering arms would be different so it looks like this car has L34 calipers and steering arms.
#19
Posted 11 February 2008 - 09:51 AM
I have only looked under 1 L34 and the steering arms looked exactly like A9X ones to me.
You can actually see that Holden then raised the upper holes up higher for A9X and UC.
UC-yes, A9X-no
M@
#20 _rorym_
Posted 11 February 2008 - 10:28 AM
Expand please RED...and compared to UC ones?L34 steering arms are similar to HJ one tonner.
R
#21
Posted 11 February 2008 - 11:02 AM
#22
Posted 11 February 2008 - 11:17 AM
Could be right - like the valley cover (inlet manifold).According to the feature on L34 in AMC the top arms had some metal removed for more clearance. Perhaps this is why the part number is different as it incorporates this modification for the spare part.
#23
Posted 11 February 2008 - 11:22 AM
I would have thought it was to get the tie rods away from the front mounted calipers? Torana steering arms bolt up fine to HQ-HX stubs. They are simply swapped side to side and the Torana arms go on. Even works with UC PBR alloy calipers, with the cast iron pad carrier changed to HZ style (with HOLDEN on it rather than TORANA). You just have to use the UC lower slide and hex key.With the HQ stubs on the L34 it also makes sense the steering arms are different as this is the main reason they need to be different to regular Torana ones.
I have only looked under 1 L34 and the steering arms looked exactly like A9X ones to me.You can actually see that Holden then raised the upper holes up higher for A9X and UC.
UC-yes, A9X-no
M@
The steering arms on this LH i'm wrecking seem to bend down further at the front, so maybe that is where the difference is?
#24 _CHOPPER_
Posted 11 February 2008 - 11:36 AM
You may find it has UC top control arms.
REA9X said:
L34 doesn't have UC upper arms, they are standard LH.
What CHOPPER meant to say:
If the upper control arms in his LH SLR have different part numbers, maybe they are UC top control arms. I never meant to suggest the L34 had UC upper control arms, as I know they didn't.
#25
Posted 11 February 2008 - 11:48 AM
The SLR in question doen't have UC upper arms - they are easy to spot. The question was what is different about L34 upper control arms and steering arms that cause them to have a different part number from stock LH.CHOPPER said:
You may find it has UC top control arms.
REA9X said:L34 doesn't have UC upper arms, they are standard LH.
What CHOPPER meant to say:
If the upper control arms in his LH SLR have different part numbers, maybe they are UC top control arms. I never meant to suggest the L34 had UC upper control arms, as I know they didn't.
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