Diff Head Clearance Heights

User avatar
skid
Tyre Man
Posts: 6309
Joined: Thu Oct 06, 2005 12:00 pm
Location: WELLINGTON-0272417757
Contact:

Diff Head Clearance Heights

Postby skid » Mon Feb 06, 2012 11:14 am

As the title eludes to, this is a place where you can put the diff head clearance height measurements in.

I'm not sure if its on here somewhere else, but its something I've been meaning to do for a while now, so I went to my lockup and measured the suzuki and then back at home I measured the 80.

What it basically will tell you is measurement from the bottom of the diff head to the nice level floor you are hopefully parked on.

I have been meaning to do this due to constantly reading about how a suzuki on 31s has more clearance than a safari on 35s, so heres my 2 vehicles and hopefully you guys can add plenty more.


Toyota 80 Series Landcruiser on 35/12.5R15 Mudstars @ 25psi 255mm

Suzuki 410 on 30/9.50R15 Kumho 834 @ 8psi 215mm


if you decide to add your vehicle to here, then please do it as above, with vehicle, size and type of tyre and the height measurement

cheers guys

SKID

p.s. the next time I have my 35" creepies on the 80 I will measure as well :wink:
Last edited by skid on Mon Feb 06, 2012 4:40 pm, edited 1 time in total.
80 Series on 35" creepies, manual with twin factory lockers.
0272417757

*CHILLAX BRO.*

nismo26
Hard Yaka
Posts: 405
Joined: Sun Nov 22, 2009 5:13 pm
Location: Christchurch

Re: Diff Head Clearance Heights

Postby nismo26 » Mon Feb 06, 2012 11:30 am

Could be an interesting thread, would be interested to see what a factory Safari has on 35" Kl71s

I have 277mm on newish 35" KL71 35psi with a diff shave, took about 25mm off.

User avatar
coxsy
Hard Yaka
Posts: 5200
Joined: Tue Jun 20, 2006 12:00 pm
Location: mangere auckland
Contact:

Re: Diff Head Clearance Heights

Postby coxsy » Mon Feb 06, 2012 11:45 am

my saf on 34'' simexs 255mm front, 260mm rear, 36 psi. in garage :D
Last edited by coxsy on Fri Feb 10, 2012 4:28 pm, edited 1 time in total.
89 safari, pto winch, 33x15 simexs. sliders,75mm lift . turbo intercoolered

User avatar
KROOZA
Hard Yaka
Posts: 122
Joined: Thu May 12, 2011 5:49 pm
Location: Canterbury

Re: Diff Head Clearance Heights

Postby KROOZA » Mon Feb 06, 2012 11:59 am

At 30psi , my project Cruiser is :



1979 FJ40 -> 37" Wranglers - 300mm front clearance
- 300mm rear clearance
Attachments
P1020864.JPG
Photo for fun of the old truck on the Wranglers

User avatar
kbushnz
Hard Yaka
Posts: 2486
Joined: Wed Sep 16, 2009 9:03 am
Location: Massey, Auckland

Re: Diff Head Clearance Heights

Postby kbushnz » Mon Feb 06, 2012 3:31 pm

KZJ78 Prado 1994 LWB
35 inch KL71's @ 40 psi
285mm front
270mm rear
Cheers Calvin
KZJ78 Landcruiser Prado...

User avatar
Jerry
Yes Dear
Posts: 8325
Joined: Tue May 30, 2006 12:00 pm
Location: Wellington 027 479 2417

Re: Diff Head Clearance Heights

Postby Jerry » Mon Feb 06, 2012 3:38 pm

is it worth measuring the tyre height as well, eg i know my mudzilla's are not a true 33" measurement .... :?:
70 series prado (KZJ78) and 90 Series Prado (KZJ95)

User avatar
nstacey
Hard Yaka
Posts: 542
Joined: Fri Jun 08, 2007 12:00 pm
Location: Tawa, Wellington
Contact:

Re: Diff Head Clearance Heights

Postby nstacey » Mon Feb 06, 2012 3:40 pm

1985 Hilux on 31/10.5/15 GT Radial Savero MTs
220mm Front and 245mm rear.
85 Hilux single cab
02 Grand Vitara

User avatar
muddy
Hard Yaka
Posts: 668
Joined: Sun Jan 09, 2005 12:00 pm
Location: Blenheim

Re: Diff Head Clearance Heights

Postby muddy » Mon Feb 06, 2012 3:51 pm

GQ Safari LWB on 35x12.5x15 Kumho KL71's at 35psi (almost new)
Front 262mm Rear 267mm

User avatar
UBZ
Hard Yaka
Posts: 1632
Joined: Sat Aug 19, 2006 12:00 pm
Location: Twizel

Re: Diff Head Clearance Heights

Postby UBZ » Mon Feb 06, 2012 3:55 pm

Suzuki LJ80 , 27" Tahs @ 15psi
front = 235mm . rear =230mm
LR110 ..... LJ50 project :roll:
Chris.

User avatar
muddyhilux
Hard Yaka
Posts: 1307
Joined: Wed Oct 04, 2006 12:00 pm
Location: auckland
Contact:

Re: Diff Head Clearance Heights

Postby muddyhilux » Mon Feb 06, 2012 4:13 pm

130 surf on 35 bfg A/T's 300 rear / 350 front
61 surf on 33 hankook muds 265 rear / 320 front

both measure on reasonably flat gravel driveway
1990 surf 350 chevy jacked up and currently under construction again

User avatar
J_Dub
Hard Yaka
Posts: 1673
Joined: Fri Oct 24, 2008 10:02 am
Location: Pukekohe

Re: Diff Head Clearance Heights

Postby J_Dub » Mon Feb 06, 2012 5:56 pm

Cherokee on brand new 31"at
Both ends 240mm

CRAZYBUSTARD
Bush Crasher
Posts: 91
Joined: Mon Jan 28, 2008 8:36 pm

Re: Diff Head Clearance Heights

Postby CRAZYBUSTARD » Mon Feb 06, 2012 6:18 pm

TJ Wrangler on 35 10.5 silverstones xtremes Front 280 at 12 psi
rear 260 at 10 psi

User avatar
DieselBoy
Hard Yaka
Posts: 4567
Joined: Sun Nov 14, 2004 12:00 pm

Re: Diff Head Clearance Heights

Postby DieselBoy » Mon Feb 06, 2012 9:29 pm

Defender 110,

Tyre size: 235 85 16 (32.8" depending on rim width)

Pressure: 40 psi

Front clearance: 253mm

Rear clearance: 255mm
lax2wlg wrote:Is that like saying 'she's hot, for a crackwhore??

User avatar
niblik
Sausage Shack
Posts: 3305
Joined: Wed May 03, 2006 12:00 pm
Location: erm.. out in the shed for a mo...

Re: Diff Head Clearance Heights

Postby niblik » Mon Feb 06, 2012 10:15 pm

could be a handy thread but an issue i can foresee is the varying weight of vehicles, with add ons etc, which would ultimately effect the bagging of tyres therefore the diff height clearance...? may only be slight, but still...

in a nutshell, too many variables..?

mumbling over... as you were..
ImageImage

User avatar
wopass
Hard Yaka
Posts: 5324
Joined: Tue Feb 22, 2005 12:00 pm
Location: Godzone
Contact:

Re: Diff Head Clearance Heights

Postby wopass » Tue Feb 07, 2012 1:47 pm

niblik wrote: the diff height clearance in a nutshell


you may be onto something there bro... but that would depend on the nut and how thick the shell was... :mrgreen:
If you already know everything, DON'T ask bloody questions!!

mike barnett
Hard Yaka
Posts: 104
Joined: Mon Dec 14, 2009 7:56 am

Re: Diff Head Clearance Heights

Postby mike barnett » Fri Feb 10, 2012 3:56 pm

safari kl71 35" 35 psi 10mm tread 277mm rear with a nismo shave done :D

pruggerdore
Hard Yaka
Posts: 610
Joined: Wed Oct 07, 2009 1:14 am
Location: hawkes bay

Re: Diff Head Clearance Heights

Postby pruggerdore » Fri Feb 10, 2012 7:47 pm

yep too many variables, but we get an indication.
yn67 single cab hilux tied down on trailer.
shaved diffs wearing 35/11.5/15 silverstones measure 33... with 10 psi in them at the moment even less.
285 back and front
guessing if I put 15 psi in tyres and cracked the tie downs she would be 300 easy

might do it again when I take it off trailer

User avatar
crazyclark31
Hard Yaka
Posts: 867
Joined: Sun Nov 14, 2010 8:13 pm
Location: invercargill.

Re: Diff Head Clearance Heights

Postby crazyclark31 » Fri Feb 10, 2012 8:09 pm

lwb safari 34psi 2/3worn 33in buckshots 225mm front 230mm rear

User avatar
00falcon
Hard Yaka
Posts: 257
Joined: Mon Dec 05, 2011 6:44 pm
Location: Henderson

Re: Diff Head Clearance Heights

Postby 00falcon » Sat Feb 11, 2012 2:40 pm

Stock (for now) TJ Wrangler on 31's @ 32psi

Front 240mm
Rear 235mm
O[][][][][][][]O
Eat, Sleep, Jeep...
-------------------
www.nzjeepclub.co.nz

User avatar
Ben
Hard Yaka
Posts: 194
Joined: Tue Feb 24, 2004 12:00 pm
Location: Nelson

Re: Diff Head Clearance Heights

Postby Ben » Sun Feb 12, 2012 8:48 am

Suzuki SJ413 on 32x10.5 R15 Simex's at 32psi with shaved diffs:

305mm front & rear.

User avatar
tallsam66
Hard Yaka
Posts: 1851
Joined: Sat Jul 01, 2006 12:00 pm
Location: Christchurch

Re: Diff Head Clearance Heights

Postby tallsam66 » Sun Feb 12, 2012 4:26 pm

A more usefull measurement would be the distance from the centre of the axle to the bottom of the diff head housing...this way the height of different brand tyres etc is eliminated.

94 Surf KZN130-W (8inch diff)
Ground to centre of axle 375mm
Ground to bottom of diff head housing 240mm
(375-240=135)
Giving a distance of 135mm from centre of axle to bottom of diff housing.

If i decide to put on a bigger tyre i can now work out how much diff clearance i will have.

EG 850mm tyre ( 850mm /2 ) -135 mm = 290 mm clearance.

User avatar
drive it ...
Hard Yaka
Posts: 261
Joined: Tue Oct 12, 2010 6:12 pm
Location: Christchurch

Re: Diff Head Clearance Heights

Postby drive it ... » Sun Feb 12, 2012 6:42 pm

KZJ 78 Prado.
2/3 worn BFG 33x12.5R15. (measure 795mm) 30Psi. 250 F 245 R
Near new Simex JT2 33x10.5-15 (830mm) 38Psi. 270F 265R

User avatar
mr landrover
Bush Crasher
Posts: 58
Joined: Thu Mar 17, 2011 8:22 pm

Re: Diff Head Clearance Heights

Postby mr landrover » Mon Feb 13, 2012 4:41 pm

96 pajero lwb

32cm front

26cm rear

on 2 month old weekend driven 31/10.5/15 pirelli mud scorpions
In order for you to insult me i would first have to value your opinion

User avatar
Jafa
Hard Yaka
Posts: 1307
Joined: Mon Nov 01, 2004 12:00 pm
Location: Katikati

Re: Diff Head Clearance Heights

Postby Jafa » Wed Mar 21, 2012 5:00 pm

85 Hilux, 39.5" Iroks (1005mm Dia)
Front @ 8 psi - 380mm
Rear @ 2-3 psi - 350mm
:mrgreen:
'85 Hilux crawler, 3rz, duals, 4.7's, 4.88's, ARB's, 30 spline Longfields, 6 stud SNR4x4 Histeer, Airshocks up front, coiled rear, 40" Iroks.
^^^this shite is all about to change....^^^

021 273 9942
jafa@inspire.net.nz

User avatar
Petemcc
Hard Yaka
Posts: 1405
Joined: Wed Sep 14, 2005 12:00 pm
Location: Queenstown

Re: Diff Head Clearance Heights

Postby Petemcc » Wed Mar 21, 2012 5:38 pm

tallsam66 wrote:A more usefull measurement would be the distance from the centre of the axle to the bottom of the diff head housing...this way the height of different brand tyres etc is eliminated.

94 Surf KZN130-W (8inch diff)
Ground to centre of axle 375mm
Ground to bottom of diff head housing 240mm
(375-240=135)
Giving a distance of 135mm from centre of axle to bottom of diff housing.

If i decide to put on a bigger tyre i can now work out how much diff clearance i will have.

EG 850mm tyre ( 850mm /2 ) -135 mm = 290 mm clearance.


Not quite.... The distance from the ground to the bottom of the rim (and therefore the axle) will be different from the top of the tyre to the top of the rim/axle because of the bulge in the tyre at the bottom which is why different tyre psi changes the clearance. The bulge is not only dependent on the psi but also on the weight of the truck....

These measurements are interesting but very subjective.

User avatar
DieselBoy
Hard Yaka
Posts: 4567
Joined: Sun Nov 14, 2004 12:00 pm

Re: Diff Head Clearance Heights

Postby DieselBoy » Wed Mar 21, 2012 8:40 pm

Petemcc wrote:
tallsam66 wrote:A more usefull measurement would be the distance from the centre of the axle to the bottom of the diff head housing...this way the height of different brand tyres etc is eliminated.

94 Surf KZN130-W (8inch diff)
Ground to centre of axle 375mm
Ground to bottom of diff head housing 240mm
(375-240=135)
Giving a distance of 135mm from centre of axle to bottom of diff housing.

If i decide to put on a bigger tyre i can now work out how much diff clearance i will have.

EG 850mm tyre ( 850mm /2 ) -135 mm = 290 mm clearance.


Not quite.... The distance from the ground to the bottom of the rim (and therefore the axle) will be different from the top of the tyre to the top of the rim/axle because of the bulge in the tyre at the bottom which is why different tyre psi changes the clearance. The bulge is not only dependent on the psi but also on the weight of the truck....

These measurements are interesting but very subjective.


........but also what ultimately counts when your offroad.

It's that precious clearance between the ground and the diff head that counts. Especially in ruts.

I have found reading the thread interesting, as I now know that if I am following some one in a safari on 35's at 15psi, if I leave mine up at 25/30 psi I should have about the same if not more clearance :wink:
lax2wlg wrote:Is that like saying 'she's hot, for a crackwhore??

User avatar
LOLYF
Hard Yaka
Posts: 712
Joined: Fri Feb 03, 2006 12:00 pm
Location: west auckland

Re: Diff Head Clearance Heights

Postby LOLYF » Fri Mar 23, 2012 3:03 pm

my hilux on 35" silverstones:
270mm front
300mm rear
havn't checked pressures, looks pathetic compared to a mates new project truck it's got 483mm :lol: :roll:

Yes that is a 1.5 liter bottle under the diff head :mrgreen:
Image

Sorry about the fuzzy photo, I'll try and get some better ones tomorrow when i'm at his place.

User avatar
Mudhog
Hard Yaka
Posts: 230
Joined: Sat Jan 22, 2011 11:34 pm
Location: West Auckland

Re: Diff Head Clearance Heights

Postby Mudhog » Fri Mar 23, 2012 7:35 pm

LOLYF wrote:my hilux on 35" silverstones:
270mm front
300mm rear
havn't checked pressures, looks pathetic compared to a mates new project truck it's got 483mm :lol: :roll:

Yes that is a 1.5 liter bottle under the diff head :mrgreen:
Image

Sorry about the fuzzy photo, I'll try and get some better ones tomorrow when i'm at his place.


I'm thinking that looks like Portals :mrgreen:

User avatar
LOLYF
Hard Yaka
Posts: 712
Joined: Fri Feb 03, 2006 12:00 pm
Location: west auckland

Re: Diff Head Clearance Heights

Postby LOLYF » Fri Mar 23, 2012 7:43 pm

Mudhog wrote:
I'm thinking that looks like Portals :mrgreen:


Yep, with 40" sticky treps :oops:
Don't think he'll have diff clearance problems :lol:

User avatar
Mudhog
Hard Yaka
Posts: 230
Joined: Sat Jan 22, 2011 11:34 pm
Location: West Auckland

Re: Diff Head Clearance Heights

Postby Mudhog » Fri Mar 23, 2012 7:58 pm

LOLYF wrote:
Mudhog wrote:
I'm thinking that looks like Portals :mrgreen:


Yep, with 40" sticky treps :oops:
Don't think he'll have diff clearance problems :lol:


He's going to need longer legs to be able to get into it :lol: :lol: :lol:

Return to “Drivetrain / Suspension”

Who is online

Users browsing this forum: No registered users and 5 guests