Hi all I have just purchased my second Sierra which has a carbed 8V DOHC, but it is leaking a lot of oil from the front somewhere, the car is stuck 5 hours away at my parents house, what is the most likely culprit...the crank seal or the oil pump or??? Also can anyone helps me out with a cam...

Hi everyone. I'm in need of a replacement sump for my DOHC engine. It's the one used in the Sierra / Scorpios. I beleive that the later 16 valve engines have the same sump pattern and some have the sump bowl at the front intsead of the rear. I'm not sure but I also beleive that the sumps are...