Customs whats the best shaved door kit?

ok im ready to buy a 4 door shaved door kit,from ebay. There seems to be some crummy ones out there,but the only one I could see that looked ok was the Spal popper kit 40 lb,I live in a VERY cold climate errr ALBERTA,Canada and I need a reliable kit will a 40lb kit for my 4 door be strong and reliable enough to last..advice and opinions needed and appreciated,thanks

 

i have used auto-loc kits with good results. key is in careful instalation.

 

I have the spal kit, no complaints

 

Auto-loc has always been my choice.

 

and 40 lb is good enough for 4 door merc? I saw auto loc kits,double the price..so is more $$ better? sometimes i wonder

 

There are 60lb kits too. The ones i like are called linear actuators, they're a little slower but there isn't any load 'whack' - the door just opens. Maybe autoloc? I've used autoloc, electric life and some others. The 40lb are all the same irregadless who you get them from.

 

i bought an auto loc kit and it didnt work too well..i just got sum electric life solonoids and they seem to be a better product..IMO