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Thanks for taking the time to reply John. I am specifically looking for seat profile dimensions as per the drg below. I have already had some great info supplied by another generous Forum member, just need to fill in the gaps. Any help much appreciated.

Dean, There are taps specifically for thread cutting in Aluminium, these have deep & wide flutes so as to allow the swarf to break cleanly. However, if you are only tapping small dia holes standard taps will suffice, just ensure you remove the tap from the hole & clean regularly & use a mineral...

Here's the 2D dwg that I created to produce the 3D design for the chassis I intend to build.

I'm looking for some detailed seat well dimensions from the original GT40 if anyone can help. Failing that, some detailed std dimensions as supplied by GTD etc would be appreciated.

Russ, Lynn Many thanks for your help.

I'll start in earnest tomorrow on stripping the 'box & will post the dimensions requested. Does anyone have expolded drgs of the 930 'box they would be willing to share? Also, I'm still looking for a diif if anyone has one going spare.

Just received a Porsche 930 g/box from a Porsche breakers yard in France & I would like to overhaul the unit. Has anyone stripped/rebuilt 1 of these & if so are their any specific points I should bear in mind when taking it apart & rebuilding it? I have attempted to split the diff housing from...

I'm now sourcing a steering rack for my new build & would like some info. I believe the usual installation for a GTD is the Ford Cortina MK 111/VI or V unit. However, I've also been advised that an MGB rack would also be a good choice. Unfortunately the guy who told me this didn't know which...

I've been making some enquiries for a new differential for my newly acquired porsche 930 g/box & this has led me to Powerhaus in the US. I have been in contact with Ryan Zielinski & he has reccomended their 1.5 way chromoly LSD unit. I was wondering if anyone has had experience of these units...

Don't sell yourself short Frank, I know of many of your satisfied customers. Brian, Frank is correct in stating that most GTD's are 'molested' from original spec. However, I personally wouldn't rely on any dimensions given as being of original spec as the GTD chassis I had (direct from the...

I'm looking for some installation photos of the 930 g/box & any tips anyone can provide. Thanks in anticipation.

Brian, I assume this is what you are looking for?:- Front Track Width: 57" (1448mm) 8.5"-10" tyres Rear Track Width: 58"-59" (1473-1499mm) 10"-14" tyres These are the figures I have based my scratch built chassis on, if I am incorrect please post a reply!! Obviously, the outside...

Tentatively sold.

I have a Renault 21T g/box for sale, unmodified but in exellent condition. Asking £250.

Thanks Russ, I'd appreciate a dimensional drg. I would have bought a side plate but I'm in no rush for this & have plenty of Alu billets laying around the workshop & to be honest I'd rather be in the machine shop than at home decorating! OK, so we've established the 'box needs to be inverted...

Does anyone have drawings/dimensions for these side plates? If anyone has a 930 diff I would also be interested. Is the 930 'box mounted as per Porsche installation or does it have to be inverted? I haven't received the 'box from France yet so can't visualise it's appliction but I would be...

Forgot to add jpeg

I have CAD drgs of the MKI & MKII bodies if anyone wants them. They are not completely accurate but are good enough for body fitment as wheel ctrs, body height door location etc are correct.

I've been following this thread with interest as I would like to use a 930 'box. I have sourced a 'box from France from a guy who has 2 for sale but both are missing the Diff & Diff side plate. Does this mean that the Diff is a weak point in these boxes or is this just pure coincidence?

Finally sorted the problem of not being able to view images on this web site! There was an Ad Blocker within MacAfee that only blocked images within threads from this site, seems strange to me but now this has been enabled all is well.