Converting 89 r1500 into a 1 ton 2wd

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
Is something like this possible?
I know the biggest capacity of a suburban was a 3/4 Ton, and I have access to almost all of the components to convert mine to 3/4 Ton, but I was wondering if it's possible to convert a 2wd suburban into a 1 ton.
Would 1 ton control arms and spindles and all fit on a suburban?
Or would this require modifications?

Thanks in advance


Sent from my SM-G965U using Tapatalk
 

eskimomann209

Full Access Member
Joined
Jan 9, 2019
Posts
1,849
Reaction score
2,005
Location
Modesto
First Name
Marcus
Truck Year
1973
Truck Model
C10
Engine Size
5.3
I have heard that the frame differences between the 1/2 and 3/4 are negligible in some years. But I can’t imagine the 1 ton frame being similar to the 1/2 ton. Point i am trying to make Is upgrading the “suspension” to one ton isn’t going to increase payload more than the 3/4 ton. Frame is still the weak link here. Next you’ll be looking for a 1 ton truck frame and doing a body swap ( what is do If I needed it. Save a frame from being destroyed )
 
Last edited:

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
What if I added addition support to the frame
(tubular crossmembers, x bracing, boxing)?
I have the means to make a 1/2 ton frame stronger than a 1 ton frame


Edit: I'm not denying what you're saying.
Might just as we be easier to swap frames, but if I'm going that far, I'll be on the hunt for a later mod 4x4 k30 frame to put under it

Sent from my SM-G965U using Tapatalk
 
Last edited:

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
Most anything is possible I think, with hillbilly customz here in Salisbury NC

Im just looking to build Up a suburban that can pull heavy loads

Sent from my SM-G965U using Tapatalk
 

Craig 85

Full Access Member
Joined
Jan 25, 2017
Posts
3,913
Reaction score
4,115
Location
Nashville, TN
First Name
Craig
Truck Year
1985
Truck Model
K30 SRW
Engine Size
454/TH-400/NP205
Are the front 2WD cross members the same between 1/2t and 3/4t? I'm sure with your skills you can beef up the frame, but is it easier doing the frame swap?

Arrowcraft used to sell the fender conversion, but I don't see it on their site anymore. There are other companies, but I don't know if standard truck fenders fit the Suburban around the rear doors.
http://www.duallyfendersfiberglasstruck.com/#CHEVY/GMC

You must be registered for see images attach

You must be registered for see images attach
 

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
Are the front 2WD cross members the same between 1/2t and 3/4t? I'm sure with your skills you can beef up the frame, but is it easier doing the frame swap?

Arrowcraft used to sell the fender conversion, but I don't see it on their site anymore. There are other companies, but I don't know if standard truck fenders fit the Suburban around the rear doors.
http://www.duallyfendersfiberglasstruck.com/#CHEVY/GMC

You must be registered for see images attach

You must be registered for see images attach
Probably easier to just swap frames, maybe while I'm at it just add an additional frame support in the middle or where I see fit.

A crew cab k30 frame would be ideal

Dad's got a 3/4 front he plasma cut off of a burb a long time ago.

Sent from my SM-G965U using Tapatalk
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,377
Reaction score
28,111
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Are you thinking of going to a dually or keeping with single wheel?
 

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,377
Reaction score
28,111
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Srw

Sent from my SM-G965U using Tapatalk

That makes it much easier then, because you really don't have to mess with the rear spring hangers and shock mounts unless you want to really mimic a 1 ton. A 14bolt FF from a 3/4 ton truck will bolt right in. As far as I know, the front suspension assembly is the same between a 3/4 and 1 ton, the 1 ton just uses s different steering knuckle, caliper and rotor.

I've got a roller C30 frame out back if you would like to see some pictures for comparison.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,377
Reaction score
28,111
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Do you have 56" rear springs already?
 

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
That makes it much easier then, because you really don't have to mess with the rear spring hangers and shock mounts unless you want to really mimic a 1 ton. A 14bolt FF from a 3/4 ton truck will bolt right in. As far as I know, the front suspension assembly is the same between a 3/4 and 1 ton, the 1 ton just uses s different steering knuckle, caliper and rotor.

I've got a roller C30 frame out back if you would like to see some pictures for comparison.
Maybe you need to slide that c30 frame my way......

Sent from my SM-G965U using Tapatalk
 

68post

very, VERY, limited access member
Joined
Feb 20, 2014
Posts
281
Reaction score
97
Location
Indianapolis
First Name
Tim
Truck Year
1984
Truck Model
84 K30 SRW Silverado, 85 C20 C6P
Engine Size
454, TBD
How are you going to upgrade the brakes ?
 

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
How are you going to upgrade the brakes ?
You're asking about a larger brake booster? Or larger rear drum and front disc

If I had a 14b ff rear end I would convert to disc anyways, and front would have whatever size disc a 3/4 or 1 ton truck has.
 

68post

very, VERY, limited access member
Joined
Feb 20, 2014
Posts
281
Reaction score
97
Location
Indianapolis
First Name
Tim
Truck Year
1984
Truck Model
84 K30 SRW Silverado, 85 C20 C6P
Engine Size
454, TBD
You're asking about a larger brake booster? Or larger rear drum and front disc

If I had a 14b ff rear end I would convert to disc anyways, and front would have whatever size disc a 3/4 or 1 ton truck has.
Well, no not a booster, just larger brakes overall like you'd have on a ton or hvy 3/4 ton. You've answered my question that you will address this upgrade also, since this likely is the most important aspect of hauling and towing.
 

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
9,000
Reaction score
15,242
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
Well, no not a booster, just larger brakes overall like you'd have on a ton or hvy 3/4 ton. You've answered my question that you will address this upgrade also, since this likely is the most important aspect of hauling and towing.
Oh of course!
I planned on upgrading the brakes, that will come with a bigger rear axle and front suspension

Sent from my SM-G965U using Tapatalk
 

Latest posts

Forum statistics

Threads
44,026
Posts
947,968
Members
36,092
Latest member
74K30
Top