offset parallel four link - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Driveway Werks · 03-07-2008, 10:22 PM

I have a 1970 C-10 that I plan on back halfing. To line up the new 2x4 frame with the old frame it will put the bags real close to the axle chuck. I don't feel comfortable mounting bags this close together. I thought if I mounted the upper bars on the inside of the frame I could then mount the bags on the outside over the axle. Is this possible? If this is a bad idea would a wishbone be a better solution? I haven't had much experience with a wishbone but it seems to be the only other possibilty because the frame is so narrow. I may tow with this truck some and want to try to keep the bags over the axle if possible. I'm looking for any kind of input or suggestions anybody may have.

bedsled71 · 03-08-2008, 04:43 AM

well you dont HAVE to mount the bags on the axle.. i think you need to think alittle bit about what you want.. a bagged truck that is slammed to the weeds or a truck to trailer stuff around, maybe a small trailer then. i dont know. there is room on the outside of the rails if you backhalf it because the rails are about 33.75 inches wide

Driveway Werks · 03-08-2008, 08:03 AM

I've had trucks that do both well. My last fullsize (an 88 C1500) laid rail and towed a trailer with an extended cab Dodge D50 alot. This is the first time doing one of these trucks and the frame being narrower has me thinking outside of the box on ways to set up the rear suspension. I prefer keeping the bags on or mounted slighty forward but still on the axle instead of mounting them on the bars. It just works better for what I want out of the truck and puts less stress on the bars and the bushings because of the extra weight of the trailer. I guess I just want to know if anybody thinks running the upper and lower bars in a different vertical plane will have any adverse effects.

Driveway Werks · 03-08-2008, 08:08 AM

I am also running a 3" narrower rearend to tuck a 10" wheel with minimal backspacing up into the fenderwell when laid out. This is cutting down on space between the wheel and the frame. This is how I came up with the upper bars maybe going on the inside.

FnLow69 · 03-08-2008, 08:40 AM

On my old backhalf I mounted the upper and lower bars in side the frame, so the uppers can be mounted in side the frame no problem. With the bags on the outside of the frame it will be more stable.

HERES SOME PICS....hope it helps

03-07-2008, 10:22 PM	#1
Driveway Werks Registered User Join Date: Dec 2007 Location: Gainesville GA Posts: 11	offset parallel four link I have a 1970 C-10 that I plan on back halfing. To line up the new 2x4 frame with the old frame it will put the bags real close to the axle chuck. I don't feel comfortable mounting bags this close together. I thought if I mounted the upper bars on the inside of the frame I could then mount the bags on the outside over the axle. Is this possible? If this is a bad idea would a wishbone be a better solution? I haven't had much experience with a wishbone but it seems to be the only other possibilty because the frame is so narrow. I may tow with this truck some and want to try to keep the bags over the axle if possible. I'm looking for any kind of input or suggestions anybody may have.

03-08-2008, 04:43 AM	#2
bedsled71 Registered User Join Date: Feb 2007 Location: yuma arizona Posts: 448	Re: offset parallel four link well you dont HAVE to mount the bags on the axle.. i think you need to think alittle bit about what you want.. a bagged truck that is slammed to the weeds or a truck to trailer stuff around, maybe a small trailer then. i dont know. there is room on the outside of the rails if you backhalf it because the rails are about 33.75 inches wide

03-08-2008, 08:03 AM	#3
Driveway Werks Registered User Join Date: Dec 2007 Location: Gainesville GA Posts: 11	Re: offset parallel four link I've had trucks that do both well. My last fullsize (an 88 C1500) laid rail and towed a trailer with an extended cab Dodge D50 alot. This is the first time doing one of these trucks and the frame being narrower has me thinking outside of the box on ways to set up the rear suspension. I prefer keeping the bags on or mounted slighty forward but still on the axle instead of mounting them on the bars. It just works better for what I want out of the truck and puts less stress on the bars and the bushings because of the extra weight of the trailer. I guess I just want to know if anybody thinks running the upper and lower bars in a different vertical plane will have any adverse effects.

03-08-2008, 08:08 AM	#4
Driveway Werks Registered User Join Date: Dec 2007 Location: Gainesville GA Posts: 11	Re: offset parallel four link I am also running a 3" narrower rearend to tuck a 10" wheel with minimal backspacing up into the fenderwell when laid out. This is cutting down on space between the wheel and the frame. This is how I came up with the upper bars maybe going on the inside.

03-08-2008, 08:40 AM	#5
FnLow69 Registered User Join Date: May 2005 Location: Washington Posts: 848	Re: offset parallel four link On my old backhalf I mounted the upper and lower bars in side the frame, so the uppers can be mounted in side the frame no problem. With the bags on the outside of the frame it will be more stable. HERES SOME PICS....hope it helps __________________ [PROJECT] FnLow69- 69 C-10 Full frame & layin' doors [PROJECT] Laidout53 - 53' Dodge Pickup, Full Kustom Build [PROJECT] "Hot Rod" 1931 Model A Bonneville style "Dream as if you'll live forever, Live as if you'll die today" ~ James Dean



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