Gary, as a fellow Brit,I can sympathise.
As the guys say the 3600 isn't a bad truck,but the problems here then arise in trying to obtain parts etc.
The bulk of the vendors here in Blighty are aimed more or less at your trucks smaller brother,the 3100.
Even then they lean more towards the bodywork/interior side of things,(which in many cases are the same as the 3600 anyway)rather than the oily bits.
It sounds that your main gripe is the running gear,and as hardcrab mentions there are options.(even over here)
If however you do decide to cut your losses and assuming you haven't been put off owning a Chevy truck,I can put you in touch with a reputable importer here,who I got my truck from and I'm delighted.
It was exactly what I was looking for,and the beauty was,I could look before I parted with any hard earned cash.
I also know he has a small inventory of second hand parts,that may help if you were to keep yours.
Good luck.
Jock.
