Speedo Sender Defender to Disco Transfer Box

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tom1979

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Swapped the disco box out of my bobtail to put in my TD5 Defender the other night, they had slightly different speed senders, the shaft on the TD5 one is slightly too big - do people just carefully file down the shaft a bit normally?
 
Swapped the disco box out of my bobtail to put in my TD5 Defender the other night, they had slightly different speed senders, the shaft on the TD5 one is slightly too big - do people just carefully file down the shaft a bit normally?
Take the disco speedo gear out and put the defender speedo gear from the old box in
 
Thanks, do you mean the worm gear that spins the sender?
Yes if you look at where the transducer/speedo cable depending on year bolts onto the transfer box the circle collar pops out and that and the drive gear will come out. Do the same on both boxes then use the defender gear in the new box. Otherwise won't a disco one doesn't fit and will give the wrong speed too. I think v8 tfer box gears are slightly diffirent too
 
It will probably be super stuck in be careful not to crack it; if it's really solid I found using a screwdriver to spin it rarther than down the crack frees it better. Be carefull not to get bits in the box either
 
This little silver collar?

IMG_6049.JPG
 
I used a large flat head screwdriver come chisel. Think metal chisel anything similar it will be tight try not to break it lol
Don't just push it in if it doesn't pop cos it's cast it will snap
 
Lovely! The one on the vehicle should be a bit harder!

View attachment 126098
Alot more awkward! I had a defender v8 one which has a black gear. Couldn't swap out as origional box and it's thinner, I ended up filing my transducer slightly think it had a diff cable on originally. Hoping it will read right when it's running lol
No doubt I'll end up buying a proper gear later and swapping. Then it prob be too big for transducer haha. Did mates transfer like yours and we forgot till after in was super stuck in too :D
 
Maybe I'll put the holes horizontal then. Thanks for the help. The one that came out the donor transfer box looks black I think that might have been a v8
 
I was just going to use the defender on because I know it's good and it hasn't been sat in a field for 10 years like the other one I didn't realise they were different!!

Do they have different colour worm gears for different vehicles?
 
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