Rear Backplate model differences? Please help

[wookie]

Hi Guys

I've got hold of some new backplates for my 69RHD devon from Evam classic in Holland which were described as 68-70 rear backplates.

Now when I go to put my drums back on either the backplate is too large or the drums too small!

My old backplate actually fits inside my new ones. Have I got the wrong part or are my drums non standard? I was wondering whether I have 68 drums or 68 backplates as I know in the past there are a lot of one year only parts for 68 vans but mine is a 69.

Could anyone help? I've posted up some photos to show you

 

[Fortunate Son]

It looks to me like maybe the red back plate is a late split screen one with the centre hole opened out a bit - the 4 mounting bolt holes are visible at the circumference of the opened out hole.

This is a RHS 68-70 (photo credit to the samba.com)



This post from the ssvc might be useful - it seems that late earlybay / late bay backing plates IE 8/70 to 79 can be modified quite easily to 68-70

http://www.ssvc.org.uk/phpbb/viewtopic.php?f=5&t=93247" onclick="window.open(this.href);return false;

 

[chad]

I had the same problem.

My bus is a Jan 68 one and uses the 'single' lip backplates.

I believe that these changed from March 68 to the 'Double' lip type.

I ended up buying some new, very expensive, drums as they wouldn't fit on the 'Double' lip drums.

If you search on here VWED did a piece on the differences along with, I believe, a picture from the manual about it.

Hope this helps

 

[wookie]

Thanks Fortunate son, they are indeed splitscreen backing plates. Evam classic are seeing if they have any earlybay ones left and have apologised for the mix up.

 

[67panel]

early 68 drums are the same as split ones apart from the depth of spline for shaft,have machined some down to fit.came across this when I worked at Midland Early Bay when tried to fit 70 drums on a 68 :shock: