My GP came with a 350 Chevy and since I have my 400 Pontiac engine in the car now, I need new front springs. Is there any real difference in front weight from a 1978 GP to an 87 GP? The 78 would also have an 80 LB lighter 301 to start with. The heavy duty for the 78 are calling for Moog 5610.
[http://www.moog-suspension-parts.com/proddetail.asp?prod=MOOG-5610]
I'm thinking those might not be "heavy" enough. I was looking at useing the springs for a 1981 GP with the olds diesel.
[http://www.moog-suspension-parts.com/proddetail.asp?prod=MOOG-5642]
The free and installed heights are almost identical, the LbS per inch is only 4 LBS lighter, but the "load" is 110 LBS heavier. I want to run A/C and the car will be drag raced a LOT, so I wouldn't mind at all haveing the front and inch to an inch and a half higher than the rear for good weight transfer to the rear. The rear has stock springs now and sits quite nice, but as the front comes up, the rear will go down. The front sits about 2 inches lower than the rear right now with the old wore-out Chevy springs. If it's too tall with the diesel springs, I could always go down 1/2 a coil at a time, but I'd rather "hit it" right off with alot of disassebly. What have you guys with this rig used with success?
Brad
[http://www.moog-suspension-parts.com/proddetail.asp?prod=MOOG-5610]
I'm thinking those might not be "heavy" enough. I was looking at useing the springs for a 1981 GP with the olds diesel.
[http://www.moog-suspension-parts.com/proddetail.asp?prod=MOOG-5642]
The free and installed heights are almost identical, the LbS per inch is only 4 LBS lighter, but the "load" is 110 LBS heavier. I want to run A/C and the car will be drag raced a LOT, so I wouldn't mind at all haveing the front and inch to an inch and a half higher than the rear for good weight transfer to the rear. The rear has stock springs now and sits quite nice, but as the front comes up, the rear will go down. The front sits about 2 inches lower than the rear right now with the old wore-out Chevy springs. If it's too tall with the diesel springs, I could always go down 1/2 a coil at a time, but I'd rather "hit it" right off with alot of disassebly. What have you guys with this rig used with success?
Brad