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Another diff ratio option? 5.125:1

Tech talk for GMH/Isuzu and Great Wall owners

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Posts: 507
Joined: Tue Nov 26, 2002 6:32 pm
Location: Nannup, Western Australia

Another diff ratio option? 5.125:1

Post by Westoztroopa »

Found this reference to a 5.125:1 (8x41) diff ratio from this site.
http://www.difflap.com.au/ratios/hi.htm

ISUZU 02/95 FRONTERA UT 8MB 25115,SPORT WAGON 8X41
ISUZU 12/95 FRONTERA, JT 8MB25F780549 8X41

I have emailed them to see if the ring and pinion sets are transferable to other Holden/Isuzu models. Exciting news if this is the case as it gives an option between the 4.77 and 5.38 ratios.

Fingers crossed... :D

Noel
1992 3.2L V6 SWB Holden Jackaroo
2008 3.0L TD Holden Rodeo S/cab Trayback
Posts: 507
Joined: Tue Nov 26, 2002 6:32 pm
Location: Nannup, Western Australia

Post by Westoztroopa »

Got a reply...

G'day Noel,
We have never tried to fit Frontera gears to a Rodeo or Jackaroo diff so I don't know if they are a straight swap. I do know the rear diff on the Frontera is a Salisbury type diff (meaning it has a inspection cover on the back) and the Rodeo and Jackaroos use a lift-out type diff (no inspection cover), I also think there are actually a different gear sets as they use slightly different bearings. I would need to get a Frontera and a Rodeo/Jackaroo gear set side by side and check out the dimensions on both. As a side note the 4.3 and 4.55 are not the most common ratio's, they are the only ratio's available as far as we know (and the only ones that Holden sell). I'm sorry I couldn't give you a more favourable response, if there is anything I failed to answer for you please email me again or call me on 07-3359-4701.

Thanks for your enquiry

Peter


Doesnt sound so promising if this is the case but it still warrants more investigation. :? So does anyone here have this model Frontera so we can find out?

Noel
1992 3.2L V6 SWB Holden Jackaroo
2008 3.0L TD Holden Rodeo S/cab Trayback
Posts: 593
Joined: Sat Nov 09, 2002 8:06 pm
Location: Traralgon Vic Aust.

Post by DAZZ »

I thought the late model F'terras had Dana diffs....
09 Cruiser Tray ARB Bull Bar/side bars, dual batts, 3" Superiour lift, MTZs, other stuff. More to come!!!
90 Sierra Soft top, 3" body 2" spring lift, 31" Claws, 5.14 Calmini, more to do.
Posts: 507
Joined: Tue Nov 26, 2002 6:32 pm
Location: Nannup, Western Australia

Post by Westoztroopa »

Yeh, thats what I thought. The later model 4 door v6 frontera like your old one I thought had the dana 44 diffs with the inspection plate. Thought the earlier ones (Frontera sport) had the same 12 bolt diff as the Jackaroo, rodeo etc... :?

Ofcourse its possible this bloke could be wrong...

Noel
1992 3.2L V6 SWB Holden Jackaroo
2008 3.0L TD Holden Rodeo S/cab Trayback
Posts: 27
Joined: Fri May 16, 2003 10:29 pm

Post by DGPirie »

The UES V6 '99 Frontera definitely has a DANA 44 rear. Don't think the old models do though.
Posts: 593
Joined: Sat Nov 09, 2002 8:06 pm
Location: Traralgon Vic Aust.

Post by DAZZ »

Posible to be Wrong!!!!! :shock: :shock: Never!!! :rofl: :rofl:
Temporarily confused, but never wrong!!!
09 Cruiser Tray ARB Bull Bar/side bars, dual batts, 3" Superiour lift, MTZs, other stuff. More to come!!!
90 Sierra Soft top, 3" body 2" spring lift, 31" Claws, 5.14 Calmini, more to do.
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