Hi All, I just found this site a couple of weeks ago and it is full of interesting info. My VS V8 was leaking a little amount of coolant out into the heater box and draining under the car. I brought a new heater core from Natrad for $140 and was thinking of doing the job myself by ripping out the dash board and heater box.I spoke to a couple of mechnics who advised against pulling out the whole dash board and recommended cutting the existing heater pipes to get the heater core out and was quoted around $320 for supply of the core and labour. I went away scratching my head, then i found this site which gave me the info to do it myself. First drain the coolant. The hardest part of the job was cutting the first pipe with a mini hacksaw due to total lack of room, the second pipe was alot easier. After cutting the two pipes it slid out quite easy, i placed the two cores together and projected the cut line on to the new core than cut the excess pipe off, i slid the new core into the heater box to check clearances between the pipes and everything was ok appox 1/16''. I removed the core again to clean up the cuts with a file and cut two pieces of 5/8'' heater hose appox 5'' long, I used liquid hand soap to lube up the inside of the hose and the out side of the pipes and pushed the hose onto the pipes coming out of the firewall and slid the new core with four hose clamps back into the heater box and lined up the pipes. The hose took a bit of effort to get down over the lower pipes but I finially got there and done up the four hose clamps.It was a matter of filling the radiator with water and testing it, it passed with no leaks, just have to put the console back together. The whole job took 3 hours and 3 beers and save me $180 in labour which i can spend on beer.I hope this post wiil help other with the same problem and no special tools needed. Regards Skeg1967.