OK good news and I feel just a little sillytoday I took the Tonner to the mechanic and once it was up on the hoist the old guy just grinn's and gets a can of CRC and the air-compressor blower nozzle then sets about cleaning out the build up of GRIT out of the linkage's moving parts and says "give it a go" WOW THAT'S IT,basically because the tonner gets driven along alot of sandstone roads including winter time GRIT had simply built-up and made the moving parts gum up.Now the funny thing is the shifter isn't firm any more,it's now sloppyStill better than a gearbox rebuild!! Once again thank's for your feed back/suggestions Byron,Dave and Buck.
Cheers Calbert