Adjusting Speedo

Submitted: Wednesday, Mar 31, 2004 at 13:22
ThreadID: 11698 Views:2841 Replies:3 FollowUps:0
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G'day all,

I am wondering if/how people have corrected their speedo's after fitting bigger tyres, and where you can get this done/how much etc. I am especially interested in Toyota 80/100 series Cruisers with 33 or 35 inch tyres.

Cheers big ears!
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Reply By: fatz - Wednesday, Mar 31, 2004 at 14:49

Wednesday, Mar 31, 2004 at 14:49
Cruza, check with Castlemaine Rod Shop ( They did one for me on an 80 series a couple of years ago. You'll need to give them a few details like diff ratio, tyre size and so on and they'll make up a convertor to connect to your gearbox and connect your speedo cable into. It's only a small unit and not very expensive, I'm running 33's on my 100 series and for the ammount it puts the speedo out I wouldnt bother again, but thats your choice!
AnswerID: 52654

Reply By: Bonz (Vic) - Wednesday, Mar 31, 2004 at 18:16

Wednesday, Mar 31, 2004 at 18:16
I just put an arrow on mine pointing to the GPS readout! It works every time, and is even transferrable to any vehicle.
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AnswerID: 52686

Reply By: fourplayfull - Wednesday, Mar 31, 2004 at 20:54

Wednesday, Mar 31, 2004 at 20:54
Yes, I have just fitted 35's to an 80 series which slowed the speedo reading by 10% . Castlemaine supplied corrector box & it now reads spot on with GPS .
AnswerID: 52715

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