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Gearbox on 79 Series

Tech Talk for Cruiser owners.

Moderators: toaddog, Elmo, DUDELUX

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Posts: 2
Joined: Tue Dec 04, 2007 7:58 pm
Location: Cairns, Australia

Gearbox on 79 Series

Post by Saidhammer »

Does anyone have any info/stories about fitting an after market turbo to a 79 series cruiser?. My main concern is that i have heard that the gearbox cant handle it especially when towing. :?:
Posts: 310
Joined: Thu Apr 20, 2006 10:38 am
Location: Melb. AU

Post by hdj105 »

The HZJ79 runs the R151F gearbox, the same as the TD Prado, TD Hilux and older Bundera's, etc. They were also in the HZJ105's and can be an issue in them, especially running a turbo and / or larger tyres, towing, etc.

No where near as strong as the older H55F (75, 60 series) or H150F (80 series) as used in the factory turbo 79's.

It probably comes down to your driving habits.
Greg G
2000 HDJ105
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Joined: Tue Aug 12, 2003 6:50 pm
Location: wollongong

Post by dow50r »

3rd cops it, i have heard of a mod that fixes that for the r150 thou, but for pure fix and never worry, an 80 series dx box and transfer is the go...straight on and in and no more worries
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Joined: Thu Apr 15, 2004 9:36 pm
Location: Lost in the Cleland fog!

Post by ferrit »

the output splines into the transfer case wear away to practically nothing within 150,000kms too.

they really are a hilux gearbox, not a cruiser gearbox!

Though that said, the R151 in my work truck has withstood 180,000kms of abuse and having a PTO hydro pump hanging out of the side of it!
2005 HDJ100 Manual, ARB bar, XD9000 winch, ARB rooftop tent + awning, Drawers, Engel, 2" OME lift, 285/75R16 KM2's, iCom, HID XGT's.
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Joined: Fri Jan 26, 2007 6:45 pm
Location: Logan (since amalgamation)

cruiser gearbox

Post by Dents LN65 »

yes they do wear the main shaft & transfer input shaft & transfer input gear splines as do the earlier 75 series, But! this can be fixed there are modified gears & shafts available to rectify this problem.
Posts: 2
Joined: Tue Dec 04, 2007 7:58 pm
Location: Cairns, Australia

Post by Saidhammer »

Thanx for all the replies. So there is a fix kit hey, anyone know a rough cost?
Posts: 3224
Joined: Thu Apr 15, 2004 9:36 pm
Location: Lost in the Cleland fog!

Post by ferrit »

$2800 if you dont get to it before the gearbox shatters its 3rd gear syncro cluster and damages itself...

Thats what it cost dad to get his fully overhauled with the upgraded bits.

Transfer case hand grenaded 20,000kms later :cry:
2005 HDJ100 Manual, ARB bar, XD9000 winch, ARB rooftop tent + awning, Drawers, Engel, 2" OME lift, 285/75R16 KM2's, iCom, HID XGT's.
Posts: 2097
Joined: Tue Aug 12, 2003 6:50 pm
Location: wollongong

Post by dow50r »

Posts: 100
Joined: Fri Jan 26, 2007 6:45 pm
Location: Logan (since amalgamation)

hzj79 gearbox parts

Post by Dents LN65 »

New modified 5th gear off main shaft $185
New modified transfer input gear $330
New modified shaft kit $540
transfer overhaul kit $350
Gearbox overhaul kit $530
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