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Does anyone know of a speedo drive gear colour chart on the net that tells which colour gear to use for each diff ratio with different tyre sizes ?
Tony
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I know some combos, what ars your details as I maybe able to help
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had a 2.78 with trimatic and it worked well with a white gear, about 3 k`s low on speedo. now using a 3.08 with one extra tooth on the gear (cant remember what colour I put in) and it reads 3 k`s high - which is safer regarding speed cameras.
just tryi
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I did a chart about a year ago, and sent it to Rustymetal at oldholden.com
I've since lost the info....(was a big job getting all the ratios) in a pooter crash, but Rusty may still have a copy.
So...try oldholden.com & see if he's posted a copy in the t |
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Rogo.
I'll just repeat the facts to make sure I've got them right and have a look tonight for you. Post a reply to answer the questions as I'll need that info.
Trimatic.
3.08 diff.
245/60/15 tyres.
Questions:
What trimatic - V8, 6cyl, VK EFI |
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The trimatic is a V8 one, with the extra clutches. Thats all I know about it. I think its 308 statesman trans? In a Van with a 308.
2.78 had a white gear 20 tooth reads 3k`s low
3.08 has a green gear 21 tooth reads 3k`s high
3.36 is what i want to
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The HQ book says with a V8 trimatic and 3.08 diff use:
green (21T) for F78x14 and 7.35x14 tyres.
dark blue (22T) for 185x14, 195x14, 70x14, 7.35x14 and EB78S-14 tyres.
red (23T) for 6.95x14 tyres.
One thing you might try is changing the drive |
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Byron,
Thanks for the advise, I never considered changing the drive gear ! I will toy with it over the weekend.
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can you pull out your driven gear out (cable) and with a torch see what colour the drive gear is (gearbox)as there are about 4 differant ones in the box
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I have the vb-k parts books and I can match it to a 15in setup.
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Crowe,
I will have a look at it over the weekend and get back to you. Thanks.
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if you still need the gear listing it's here: http://www.oldholden.com...peedo_Drive_Gear_Colours70ute there are no stupid questions, only stupid people Edited by user Wednesday, 11 May 2005 8:29:50 PM(UTC)
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can you help me? i have a vk 6 , 5speed borgwarner with standard diff
with vnss rims standard tyres the speedo is 13 klms out at 100klms im actually doing 113 acording to speedo tests along free ways its costing me money in fines any body know this colou
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looks like your new wheel/tyre combo is 13% taller? assuming your speedo works correctly you want to reduce it's gearing by 13%, what's your speedo drive gear ratio?
follow the link posted above.
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Hi Guys.
There are 3 different drive gears inside the box, but the most common is the 8 tooth (white) gear.
The 2.60 diff uses the 7 tooth one & the low diffs (3.90 & 4.44) use the 9 tooth one.
The simple way to calculate it, is each time you cha |
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its ok Ill just putt along at 87, At first I thought that everybody was sunday driving, now I know I was speeeeeeeeeding!!!!!!
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