The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-59 Rear leaf spring swap issue

leegreen · 11-22-2022, 04:55 PM

you want to move the axle back and use the forward most hole. it looks like you could drill a 3rd hole ever further forward if needed.

is the rear shackle angle mentioned in first post working out? Spring eye needs to be behind upper shackle pivot. if it is in front the ride will be harsh, far enough in front the spring will be unable to lengthen as it flattens out under load.

The shim I see used with the monoleaf to adjust pinion angle may not be correct after the springs are changed.

11-22-2022, 04:55 PM	#12
leegreen Registered User Join Date: Mar 2022 Location: Surrey BC Posts: 686	Re: Rear leaf spring swap issue you want to move the axle back and use the forward most hole. it looks like you could drill a 3rd hole ever further forward if needed. is the rear shackle angle mentioned in first post working out? Spring eye needs to be behind upper shackle pivot. if it is in front the ride will be harsh, far enough in front the spring will be unable to lengthen as it flattens out under load. The shim I see used with the monoleaf to adjust pinion angle may not be correct after the springs are changed.