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FE-FC Holden Discussion Forum

Technical Board => Modification Help => Topic started by: Simo on May 28, 2015, 01:22:18 PM

Title: HR stub axles
Post by: Simo on May 28, 2015, 01:22:18 PM
Can any one tell me if an HQ stub axle will marry into HR cross member and hub?
Thank you
Simo
Title: Re: HR stub axles
Post by: JOX515 on May 28, 2015, 03:36:01 PM
Am running HQ stub axles, rotors and calipers with my HR front and works very well.
Title: Re: HR stub axles
Post by: FireKraka on May 29, 2015, 03:39:13 PM
I'm the same as JOX Simo not a problem at all, I run the later and supposedly better Aluminium Girlock calipers

Regards
Neil H
Title: Re: HR stub axles
Post by: fx48_eh64 on May 29, 2015, 11:37:16 PM
They will physically bolt on no issues, and over HR stubs give you approx. 3/4 " drop in ride height, they also add a bit of camber so make it hard to get perfect wheel alignment
having said that, I am running HQ stubs  VN brakes on a HR front end on an FX holden, and it works for me, but I do get a lot of toe in produced if I jack the wheels off the ground but it doesent seem to affect the vehicle during normal suspension travel range,  I drove from Brisbane to Victoria and back towing a caravan and never once had an issue with the set up other than it scrubbed the inside edges of the tyres as I had to much camber
Title: Re: HR stub axles
Post by: FireKraka on May 30, 2015, 10:02:00 AM
Hi fx48 I may be wrong here but I think you may have other issues I had my wheel alignment done about 12 months ago when going for rego and had no such issues and no toe in.
Are you running rack and pinion on the front of the crossmember (Torana) if so this may be the cause.
I am happy for others to tell me I'm wrong been wrong many times before   ;D

Regards
Neil H
Title: Re: HR stub axles
Post by: mcl1959 on May 30, 2015, 10:11:10 AM
If you have camber issues I suspect you have Torana stub axles rather than HQ. HQ stub axles have the same geometry as HR, with the exception of the raised axle position.

Ken

Title: Re: HR stub axles
Post by: Simo on May 30, 2015, 03:27:24 PM
Thanks for all the help guys,
Just to clarify, can I still use the HR hubs and bearings I have or do I change the hubs to HQ?
Title: Re: HR stub axles
Post by: mcl1959 on May 30, 2015, 06:02:57 PM
You can't use the HR rotors and calipers on HQ stubs. HQ rotors are bigger in diameter and the holes that mount the caliper are correspondingly further away as well.

Ken
Title: Re: HR stub axles
Post by: fx48_eh64 on May 30, 2015, 06:13:33 PM
my toe in issue is from the front mounted torana rack ,I believe its different with a rear rack , every thing was already done and engineered before I swapped from HR to HQ stubs as my front ride height was just to high,
I may stand corrected but I always thought that the KPI was different HR to HQ
Title: Re: HR stub axles
Post by: KFV888 on May 30, 2015, 06:32:02 PM
hasn't this yopic been discussed about 20,000 times here??
Title: Re: HR stub axles
Post by: Simo on May 31, 2015, 12:05:59 PM
Thanks !
Title: Re: HR stub axles
Post by: NES304 on May 31, 2015, 10:03:02 PM
No. Just 300
Title: Re: HR stub axles
Post by: Glenn 'Stinky' Stankevicius on May 31, 2015, 10:47:38 PM
Quote from: NES304 on May 31, 2015, 10:03:02 PM
No. Just 300
Yes, but FAQs (and search options) are over-rated and seldom read  :-\
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