Our LRDG Chev

[Andrew H.]

I have a perplexing question about the studs on our 16-inch split-rims. I am referring to the studs holding the two halves of the split-rims together (not the actual wheel studs).

Some of the split-rim studs need "chasing" with a die nut. The diameter is 7/8 inch but we cannot work out what the thread is. They are not BSF as there are 12 threads per inch. They are not like anything we are familiar with. The thread is right-handed. We don't know what vehicle they originally came from, but we understand it was CMP.

So what size studs were used on CMP trucks and how much variation was there? I hope you knowledgeable guys can help with this

[Hanno Spoelstra]

Andrew, see http://www.mapleleafup.net/forums/sh...ad.php?t=24318

[T Creighton]

Hi Andrew,
The wheel bolts are 7/8" BSF 11 TPI. I have a die nut and a tap you could borrow if you are stuck. My address details are in the NZMVCC register or you could PM me on this forum.
I have been following your thread from the start. Congratulations on the progress.
It will be great to have another LRDG vehicle for parades.
Regards Terry.

[Andrew H.]

Thanks Hanno and T Creighton,

We must have counted the threads wrongly We will have a closer look this morning.

[Andrew H.]

When we checked the rims this morning we again counted 12 threads per inch, so I am still confused. But in the meantime we managed to borrow a special die tool that can be used on any thread and that worked well. Thanks again to all who responded.

[Andrew H.]

We are now making our "bush bar" or "scrub bar" (I am not sure what the correct term is) to attach to the front bumper. Judging by wartime photos (see pic attached), the LRDG appear to have used the same type of bar used on all of the Blitz type of CMP trucks. Can anyone tell me what diameter the horizontal pipe or bar is? I assume one inch?

[Andrew H.]

Nobody responded to my query (above) about the bush bar or scrub bar. Maybe it was a silly question, but I still need to know the answer. Could someone please measure their original horizontal bar and tell me its diameter? Thanks in advance.
Andrew