Converting '68 120 mph Rallye Speedo to 150 mph

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I'm not sure but I'd say it needs refurbished just to be on the safe side. Been hanging on to it for my 67 but at the price they want to refurbish these things I might go aftermarket.
 
Treblig said:
Does it need overhaul....makes a difference?? If you can't guarantee it to function properly the price changes.

Treblig
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That's the rub.

Buying a used one you don't know if it will work. I have a bunch of 120's I put in a couple of them to fix my bouncing 150 needle. They all bounced too.

I took it to Redline and they refurbish my 150 and all is cool.

If jbc426 doesn't actually use the trip odometer, I don't see a lot of downfall to jbc426 using a 120mph core speedo to covert to a 150mph.

I mean you are going to spend the money refacing and refurbishing a used 150mph anyways. Why not save the core 150mph speedo core.
 
autoxcuda said:
That's the rub.

Buying a used one you don't know if it will work. I have a bunch of 120's I put in a couple of them to fix my bouncing 150 needle. They all bounced too.

I took it to Redline and they refurbish my 150 and all is cool.

If jbc426 doesn't actually use the trip odometer, I don't see a lot of downfall to jbc426 using a 120mph core speedo to covert to a 150mph.

I mean you are going to spend the money refacing and refurbishing a used 150mph anyways. Why not save the core 150mph speedo core.
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If I can't find a decent one on here, and there may be one out there, I'll follow through with my initial plan and your advice on getting the 120 converted.

Besides Steve, I partially blame you for taking the slant six out, installing what turned out to be a well the worn 5.9 Magnum that actually runs really good and now putting in the 408 inch stroker in my '68. See, you set a bad example! Hot rodding and handling get in your blood!
 
i bet there is a large readout phone app that would be easier to read at the track than that tiny seedo. duct tape the phone to your dash at the track.
 
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