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Author: Subject: Custom steering rack extensions
dan8400

posted on 30/10/17 at 08:44 AM Reply With Quote
Custom steering rack extensions

As title.

I am after some custom steering rack extensions for my trike build. I have a punto steering rack which is m12 x 1.5 threads. I need to connect these to Sierra track rod ends.

I will double check the thread sizes and length I need.

I just need to know where to go to get these made and approximate costs. Unless I can pay anyone on here can do them

Thanks
Dan





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nick205

posted on 30/10/17 at 11:48 AM Reply With Quote
I can't make them for you, but whilst building my MK Indy I made friends with a local engineering firm. They proved very useful as a source of materials and for getting some bits made - e.g. seat mounts welded up. If you can find someone similar and give them the track rod and rod ends they may be able to make what you need.
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russbost

posted on 30/10/17 at 11:54 AM Reply With Quote
M12 x 1.5 is the same as the Cinquecento rack I use for the Furore, I have extensions 170mm long (75mm internal thread, 50mm on the male end), which have M12 x 1.25 thread on the outer end for the Toyota TRE's , no idea whether that matches up with Sierra thread?





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dan8400

posted on 30/10/17 at 11:58 AM Reply With Quote
The Sierra thread is m14 x 2

Russ, I don't suppose you know the size of the taper on the Toyota TRE?


Good suggestion nick. I will have a look into local firms

Thanks
Dan





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russbost

posted on 30/10/17 at 12:02 PM Reply With Quote
We have tapers made to fit the Toyota TRE's for our hub adapters, they are 20mm thick, & the taper goes from 15.5mm down 12.5mm, I believe that is a 4.8 deg taper each side, total inclusive taper of 9.6 deg





Furore Formula Car - the only two seater modern Formula Car lookalike. I no longer run Furore Products or Furore Cars Ltd, but would still highly recommend them for Acewell dashes, projector headlights, dominator headlights, indicators, mirrors etc, best prices in the UK! Take a look at http://www.furoreproducts.co.uk/ or find more parts on Ebay, user names furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours. http://shop.ebay.co.uk/furoreproducts/m.html?_dmd=1&_ipg=50&_sop=12&_rdc=1

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dan8400

posted on 30/10/17 at 12:10 PM Reply With Quote
I know it's a long shot, but do you know if that is compatible with the Sierra TRE?





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russbost

posted on 30/10/17 at 12:13 PM Reply With Quote
Sorry, but no idea as I don't use Sierra stuff, I'm sure several peeps on here must know, worth asking a separate Q in case others aren't following this thread? Might be close enough that a tapered reamer would sort it for you?





Furore Formula Car - the only two seater modern Formula Car lookalike. I no longer run Furore Products or Furore Cars Ltd, but would still highly recommend them for Acewell dashes, projector headlights, dominator headlights, indicators, mirrors etc, best prices in the UK! Take a look at http://www.furoreproducts.co.uk/ or find more parts on Ebay, user names furoreltd & furoreproducts, discounts available for LCB users.
Don't forget Stainless Steel Braided brake hoses, made to your exact requirements in any of around 16 colours. http://shop.ebay.co.uk/furoreproducts/m.html?_dmd=1&_ipg=50&_sop=12&_rdc=1

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MattD

posted on 30/10/17 at 01:19 PM Reply With Quote
Source - http://www.super7thheaven.co.uk/blog/haynes-roadster-lower-front-arm/

Not sure I like the wishbone design on first pass... too many moveable fasteners to flex for my liking.
But it gives the taper info you need.... & the drawing linky links back to LCB !!
http://locostbuilders.co.uk/upload/a1084019-sierra%20upright.jpg

According to Ford and the drawing below, a standard track rod end taper is 7 9′ 7″
7 9′ 7″ = 7.151944


[Edited on 30/10/17 by MattD]

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dan8400

posted on 30/10/17 at 06:45 PM Reply With Quote
Thanks for the info. Just to confirm, the TRE taper is: 7.151944 degrees?

Thanks
Dan





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MattD

posted on 30/10/17 at 07:16 PM Reply With Quote
Yes, it says 7.1 degrees.
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dan8400

posted on 30/10/17 at 07:20 PM Reply With Quote
Thank you





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