Maybe I really am crazy...but
Well I have never posted a picture on here, but I will try. This is my old 1975 GMC dually. I have driven it for 32 years, put in a new engine many years ago, actually almost everything has been...
Forum Discussion
Hey TrailRider- Since you have owned it for years I am sure you are familiar with all the idiosyncrasies of it. Years ago I used to work at a Cheby dealer and owned a few trucks of this era. Some things that I recall regarding this series of truck:
Fuel pumps seems to go out more than a few times. The stock design is a pushrod type located at the right- front of the block. It was always a bear to keep the pushrod in place when installing a new one. A little chassis grease on the rod will help keep it in place when installing the new one. If I had a truck of this year i might consider an electric pump. IIRC there are kits available that include all the wiring, fuses and block plate.
Does this truck have points? If so, drop in a new distributor with the HEI ignition... money well spent in my opinion.
Not sure if the 700R4 transmission was offered this early or not. They were generally not installed on 30 series trucks but I have seen them on 20 series. It is not the best transmission (with its overdrive) for doing heavy duty work unless re-built/ built up by a transmission shop. IIRC the TH350 was the standard for this truck- it is perceived as a good transmission.
The hood: KEEP THE HINGES LUBED! if they start to bind up then it will start to crack and buckle the hood metal. Cheap insurance against needing to replace a perfectly good hood.
Neat truck... wish they still made them like this... although doung brake pads on the rear are a PIA!
ON EDIT: Just saw your mention of a manual tranny in the post above... disregard my comments on the TH350.
Fuel pumps seems to go out more than a few times. The stock design is a pushrod type located at the right- front of the block. It was always a bear to keep the pushrod in place when installing a new one. A little chassis grease on the rod will help keep it in place when installing the new one. If I had a truck of this year i might consider an electric pump. IIRC there are kits available that include all the wiring, fuses and block plate.
Does this truck have points? If so, drop in a new distributor with the HEI ignition... money well spent in my opinion.
Not sure if the 700R4 transmission was offered this early or not. They were generally not installed on 30 series trucks but I have seen them on 20 series. It is not the best transmission (with its overdrive) for doing heavy duty work unless re-built/ built up by a transmission shop. IIRC the TH350 was the standard for this truck- it is perceived as a good transmission.
The hood: KEEP THE HINGES LUBED! if they start to bind up then it will start to crack and buckle the hood metal. Cheap insurance against needing to replace a perfectly good hood.
Neat truck... wish they still made them like this... although doung brake pads on the rear are a PIA!
ON EDIT: Just saw your mention of a manual tranny in the post above... disregard my comments on the TH350.
