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MUS BUS 10 newbie
Joined: 21 Aug 2002 Posts: 2
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Posted: Thu Aug 22, 2002 9:01 pm Post subject: Diff ratio |
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Is it true that panel van (gypsy wagon!) diffs are a different ratio than the sedans? I know diesels are a 4.55 ratio but what are the vans? Cheers |
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ByteMe22 backyard mechanic
Joined: 28 Dec 2001 Posts: 591
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Posted: Thu Aug 22, 2002 9:45 pm Post subject: Re: Diff ratio |
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i thought diesels were 3.55... |
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elky petrol head
Joined: 06 Oct 2001 Posts: 1149
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Posted: Thu Aug 22, 2002 10:12 pm Post subject: Re: Diff ratio |
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maybe but i don't think so. I have the Geniune holden gemini parts book for the whole t series run. It says that there were 3 ratios, the diesel diff, the early model 8 bolt (3.89) and the later model 10 bolt (3.90) 8 bolts were only found on tx and tc gems
cheers |
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martin backyard mechanic
Joined: 04 Oct 2001 Posts: 900
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Posted: Thu Aug 22, 2002 11:11 pm Post subject: Re: Diff ratio |
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so the different of a bee's dick between early and late model petrol models |
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Birko tinkerer
Joined: 03 Apr 2002 Posts: 180
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Posted: Fri Aug 23, 2002 1:49 am Post subject: Re: Diff ratio |
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Ive heard rumors that a diesel is a 4.11, howver there is no prove and nobody confirms it on this site. So ill stick with my holden book and say that it is 3.55 |
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spud petrol head
Joined: 05 Apr 2002 Posts: 1106
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Posted: Fri Aug 23, 2002 2:29 am Post subject: Re: Diff ratio |
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i hearded the centres are the smae as some commodore diffs. any one able to confirm or deny that? and if it does work what ratios are available with them?
spud |
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GasGem backyard mechanic
Joined: 05 Nov 2001 Posts: 755
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Posted: Fri Aug 23, 2002 11:20 am Post subject: Re: Diff ratio |
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Early Diff 3.89:1 (8 bolt)
Petrol ALL Australian MODELS 3.90:1 (10 Bolt)
Diesel 3.55:1
Diff 10 Bolt is the same as commdores BUT the Pinion is different so you have to use a Gemini Crown and Pinion, thus keeping with the gemini ratio 3.9:1, but the LSD centre can be added.
as far as I know:
Piazza 3.55:1 LSD Solid disk brake version. with tourque tube.
ZZ/R & ZZ/T
unsure.
I assume they may have had the same as the Piazza,
Cheers
Eggy |
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gemivanman rice boy
Joined: 08 Oct 2001 Posts: 39
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Posted: Fri Aug 23, 2002 2:09 pm Post subject: Re: Diff ratio |
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yes, the panal vans had a higher diff ratio. this was because it gave them a better take off when they had a load in them. i cant remember the ratio off the top of my head cause i read it a long time ago.
later |
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Trippo rice boy
Joined: 16 Aug 2002 Posts: 18
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Posted: Fri Aug 23, 2002 7:13 pm Post subject: Re: Diff ratio |
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I'd say that that would be a typo! 4.55 - 3.55. Vans are different ratio, but stuff knows what. |
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GasGem backyard mechanic
Joined: 05 Nov 2001 Posts: 755
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Posted: Fri Aug 23, 2002 7:25 pm Post subject: Re: Diff ratio |
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VAN's are same ratio as Petrol sedans,
and 3.5:1 would be a higher ratio and hard to get off the line.
ie. 1st would be like a 1st+1/2 gear and so on, |
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Ben Wight backyard mechanic
Joined: 04 Oct 2001 Posts: 946
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Posted: Fri Aug 23, 2002 9:13 pm Post subject: Re: Diff ratio |
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Does anyone know if the diesel diff is the same salisbury unit as the petrol diff, just a different ratio? Or is the diff housing different aswell?
I am keen to get a 3.55:1 ratio, but keep my LSD centre.
Ben wight |
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Trippo rice boy
Joined: 16 Aug 2002 Posts: 18
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Posted: Tue Aug 27, 2002 8:49 pm Post subject: Re: Diff ratio |
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3.55 - They set the speedo out 10Kms. Pretty good, its almost worthwhile having first gear! Good on the highway, a prick if you don't get the handbrake cable to suit! |
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