Wheel help please

Hi have a mk1caddy and the wheel set up is 4x100
How easy is it to put 5x100 alloys on? I see a lot of conversion plates for the front and I have drums on the back just wanted some advice on best way to do it, 
Thanks again 

The adapters are the easy part, just google "4x100 to 5x100" and loads come up. You'll probably need longer bolts and depending on the width of your wheels and thickness of the spacers, you might be outside of the arches as well….

The problem I had with mine were that the 'hoop' brake caliper carriers on the front fouled the wheels, so I had to change them to the 'horseshoe' type as well, there's a thread on here about it somewhere *edit* this one  https://vwgolfmk1.org.uk/forum/index.php?page=topicview&id=technical%2Frunning-gear_2%2Fcalibre-retro-stars

How do they work for the rear hubs ? As I bought some standard spacers before and they wouldn't fit? Do they meeed to be drilled ? Cheers 

Decent spacers should work just as well on the drum as the disc. 

https://www.ebay.co.uk/itm/Car-4x100-To-VW-Audi-Wheel-5x100-15mm-Hubcentric-Spacers-Bolts-2-PAIR-Adaptors/151623488663?hash=item234d76d497:g:bNMAAOSw8x1Ze1d~

PCD changers.

You'll need 2 sets.

Stick to 4x100 if you can though.

Ian

Thanks for all the help on this I have sourced some wheels and they are 4x100 so all good but my 30 mm spacers do not fit on my rear drums? They rock and struggle fit over the hub cap? Any ideas why ? 
Mk1 caddy is the vehicle, cheers 

Cheapo spacers probably mate, good ones are machined to accept the spigot on the drum.

Or cheap drums!

I've had issues with both.

Gentle sanding with a dremal to the spacers will help.

Ian

caddys have a longer central spigot on the rear drum and also a larger radius where it meets the face of the drum so hub centric spacers for a golf don't fit without modifying.