One Ton Suspension Upgrades - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71meangreenc10 · 06-28-2017, 07:48 PM

I just picked up a 72 Motor Home. Will the crossmember from a 85 one ton bolt up in place of the stock one? I want to change the drivetrain to something that has parts available. Looked at a few sights and no one has rear drums for a dually. Did some searching here and everything that comes up with changing to 4wd from 2wd which is not what I am trying to do.

Thoughts?

Smitty

**Clyde65** · 07-03-2017, 03:01 PM

Yes they will swap. 73-90 1ton

69gmcc10 · 07-03-2017, 05:04 PM

It will bolt right up without any issues except one hole,the front lower bolt hole on the side of the frame is off just a little. I used a dremel to wollow out the bolt hole so it would line up... don't pay any attention to the gouges on the frame where the dremel went rogue.

71meangreenc10 · 07-04-2017, 12:09 AM

Quote:

Originally Posted by Clyde65

Yes they will swap. 73-90 1ton

Quote:

Originally Posted by 69gmcc10

It will bolt right up without any issues except one hole,the front lower bolt hole on the side of the frame is off just a little. I used a dremel to wollow out the bolt hole so it would line up... don't pay any attention to the gouges on the frame where the dremel went rogue.

Thanks guys,

Picked up a complete front and rear assemblies. Got to see what the gearing is on the 14 bolt.

Great pick 69gmcc10.

Smitty

Whitey__62 · 07-07-2017, 10:30 PM

Couple options as well. You can keep the original front crossmember and run a set of PBFAB control arms, they can be made with 73-91 balljoints, 1" forward and 1" in to allow for better wheel alignment in wheel well and wider wheel/tire. Then you have more brake options too. You can run drop spindles for 73-91 at that point as well.

I'm going to run this with a higher GVW brake spindles from a 84 1ton dually, trying to keep the true 1ton brakes. I'm swapping in a 4.10 14bff and making it disc brakes as well. Might switch to a 3.73 to make the sm465 a little better for top end highway driving.

71meangreenc10 · 07-10-2017, 01:12 AM

Quote:

Originally Posted by Whitey__62

Couple options as well. You can keep the original front crossmember and run a set of PBFAB control arms, they can be made with 73-91 balljoints, 1" forward and 1" in to allow for better wheel alignment in wheel well and wider wheel/tire. Then you have more brake options too. You can run drop spindles for 73-91 at that point as well.

I'm going to run this with a higher GVW brake spindles from a 84 1ton dually, trying to keep the true 1ton brakes. I'm swapping in a 4.10 14bff and making it disc brakes as well. Might switch to a 3.73 to make the sm465 a little better for top end highway driving.

What Disk Brake Option are you looking at?

Smitty

Whitey__62 · 07-13-2017, 03:08 AM

Quote:

Originally Posted by 71meangreenc10

What Disk Brake Option are you looking at?

Smitty

I'll be running the single wheel 13x3.5" brakes from a 84 Crew Cab 2wd. Additionally I'll be doing a crossmember swap with drop spindles.

71meangreenc10 · 07-15-2017, 07:41 PM

Quote:

Originally Posted by Whitey__62

I'll be running the single wheel 13x3.5" brakes from a 84 Crew Cab 2wd. Additionally I'll be doing a crossmember swap with drop spindles.

Are you putting disks on the back?

Smitty

06-28-2017, 07:48 PM	#1
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,158	One Ton Suspension Upgrades I just picked up a 72 Motor Home. Will the crossmember from a 85 one ton bolt up in place of the stock one? I want to change the drivetrain to something that has parts available. Looked at a few sights and no one has rear drums for a dually. Did some searching here and everything that comes up with changing to 4wd from 2wd which is not what I am trying to do. Thoughts? Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time

07-03-2017, 03:01 PM	#2
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,539	Re: One Ton Suspension Upgrades Yes they will swap. 73-90 1ton __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

07-03-2017, 05:04 PM	#3
69gmcc10 Registered User Join Date: May 2011 Location: Missoula, MT Posts: 934	Re: One Ton Suspension Upgrades It will bolt right up without any issues except one hole,the front lower bolt hole on the side of the frame is off just a little. I used a dremel to wollow out the bolt hole so it would line up... don't pay any attention to the gouges on the frame where the dremel went rogue. Attached Images __________________ 69 GMC C10 build thread- http://67-72chevytrucks.com/vboard/s...d.php?t=501676 03 Silverado build thread-http://67-72chevytrucks.com/vboard/s...d.php?t=591582

07-07-2017, 10:30 PM	#5
Whitey__62 Registered User Join Date: Aug 2012 Location: Edmonton, Alberta Posts: 8	Re: One Ton Suspension Upgrades Couple options as well. You can keep the original front crossmember and run a set of PBFAB control arms, they can be made with 73-91 balljoints, 1" forward and 1" in to allow for better wheel alignment in wheel well and wider wheel/tire. Then you have more brake options too. You can run drop spindles for 73-91 at that point as well. I'm going to run this with a higher GVW brake spindles from a 84 1ton dually, trying to keep the true 1ton brakes. I'm swapping in a 4.10 14bff and making it disc brakes as well. Might switch to a 3.73 to make the sm465 a little better for top end highway driving.



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