building gts locost using an mt75 gearbox has anyone else used one of these and if so do you have pics of
your prop just so i know what i should be asking for when i get one made thanks in advance

Looks like you are using pretty much the same type of setup as myself although I have a gts w7de chassis.

There are 2 types of output flange on the MT75, the one I have has 3 outer pins and a centre pin with a diameter of 19mm. The second, is, well, different..

The flange on the sierra diff is standard and most propshaft manufacturers will not need any more information.

So, the only information I needed to give was, MT75 (3 pin) to Sierra diff and the length of the propshaft needed.

Also, the prop you need made will have 2 universal joints on because you need more flex than you get with the rubber "bung" that the donor sierra had.

If you give Martin at Proptech a ring he will be able to make a really good prop for you for about £120. They are really nice to deal with and make props for Westy and Caterham.

Proptech Ltd, Nr Kidderminster. (01299) 251247

Dont know if these will be any good?

connection to mt75 without prop
Rescued attachment earth 3.JPG

connection to mt75 with prop
Rescued attachment fuel lines and gearbox.JPG

If you want any more pictures i could take a some more as i have only just stripped the parts from my sierra.

I have added pictures of the propshaft I am using to my photos. Propshaft Photos