| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | What does he mean by ‘pretty stiff’? If you mean hard to push, 7000 hydro boost might give different pressures the pickup hydro boost? Also, like you said pedal ratios enter into the picture.
Does he know if the pump was putting out required pressure?
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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