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73-87chevytrucks.com
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73-87 Chevy _ GMC Trucks
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4 Wheel Drives
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2wd to 4wd conversion
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Topic: 2wd to 4wd conversion (Read 39671 times)
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
2wd to 4wd conversion
«
on:
December 14, 2010, 12:13:17 AM »
I'm looking to convert my truck to 4 wheel drive. I'm going to buy the fron crossmember, front axle hub to hub, and front springs to start. I was wondering, is there any way to custom make spring holders for the springs that I can weld onto my chassis? Or would it be better to get the mounts from a parts truck like out of the junkyard or something?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
KY..Rob
Registered Users
Posts: 185
Re: 2wd to 4wd conversion
«
Reply #1 on:
December 14, 2010, 05:47:10 AM »
Personally, I would look for a parts Truck. Take everything you can get from it. Brake lines, swaybar, nuts bolts, steering gear, pitman arm, drive shafts tierods. Mark all your bolts and nuts in bags from what they came off of. You will also need the Hump. You mite get lucky and find a good donor with the Transmission and T-case. Take it all.
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Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: 2wd to 4wd conversion
«
Reply #2 on:
December 14, 2010, 09:32:05 AM »
Best to find a farm 4x4 buy it and put your cab and bed on it with a 3" body lift or like said get the center hump off the 4x4
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
thirsty
Senior Member
Posts: 1289
Re: 2wd to 4wd conversion
«
Reply #3 on:
December 14, 2010, 10:35:20 AM »
I did the conversion (Can't finish the truck right now though). It was alot more work than I expected but it is possible. I also used a 79 frame for my 86 stuff. If I was to do another frame I would find a 4x4 before I made one out of a 2wd frame. I did it because I got a nice frame for free and didn't want the 3rd frame for my truck to ever have to come out again. There is alot of cutting of rivets, I made jigs to get the right measurements, alot of drilling, and alot of high quality bolts needed.
On the other hand...I am confident in the chassis work and also am proud of it and glad I did it.
Older brother took some photo's and posted them here whenever he stopped by to help.
http://www.suitorsgarage.com/projects/86chevy4x4/86chevyphase3a8.html
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Real trucks are built, not bought
Build thread
Give me a long enough lever and a place to stand, and I shall move the earth or break this bolt...Whatever, just hold my beer!
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: 2wd to 4wd conversion
«
Reply #4 on:
December 14, 2010, 03:16:05 PM »
Okay, Another question about it, this one kind of odd. I found a differential on craigslist for a 90's 4wd, and it is for the independent front. Is it possible to modify my truck to use independent front suspension with 4wd?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Captkaos
OWNER and Administrator
Administrator
Senior Member
Posts: 18376
Re: 2wd to 4wd conversion
«
Reply #5 on:
December 14, 2010, 04:40:15 PM »
How much skils do you have as far as fabrication?
With enough money time and the right tools anything in possible, but, it is worth it? The solid axle design is superior in offroad in my opinion.
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Chris Lucas
73-87chevytrucks
captkaoscustoms
squarebody
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: 2wd to 4wd conversion
«
Reply #6 on:
December 14, 2010, 04:43:41 PM »
Actually, solid axle and independent both have their pros and cons. Independent is much softer for things like dirt woops and landings and travel, but solid axle is superior for rocks and hills. Also, less likely to break solid axle. I figured, since I have independent front suspension now, I could use the same crossmember, swap out the control arms and spindles with a 4wheel drive set up? Idk. Just kind of brain storming really. It would be an interesting concept
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Da67goatman
Site Supporters
Junior Member
Posts: 757
Burban
Re: 2wd to 4wd conversion
«
Reply #7 on:
December 14, 2010, 04:45:13 PM »
Hummvee...just put your body on.
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<Pitcrew>
1989 R2500 Suburban mild 350 TBI 700r4 10.5" 14bolt 4.10 w/ 33s
1992 fullsize Blazer 4x4 35s no lift, 4.10s, Hella driving lights, TJ Flares, Huge bumpers, Snorkel, custom interior
Captkaos
OWNER and Administrator
Administrator
Senior Member
Posts: 18376
Re: 2wd to 4wd conversion
«
Reply #8 on:
December 14, 2010, 04:52:29 PM »
If you are just going to be driving on dirt woops and stuff, why not just keep the 2WD.
The front frame rails are not the same on the 88-99 trucks so you are going to have to fabricate something or front half the truck.
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Chris Lucas
73-87chevytrucks
captkaoscustoms
squarebody
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: 2wd to 4wd conversion
«
Reply #9 on:
December 14, 2010, 05:12:22 PM »
I wont be going off dirt woops, just making a point that they both have their strong points. And, I probably wont do the independent considering this is my daily driver and I cant have it sitting. I found a 6 lug Dana 44 with springs axles gears hubs rotors calipers etc on craigslist for a fair price. Is it possible to convert a 6 lug dana 44 to 8 lug since my truck is a 3/4 ton and I have 8 lug wheels?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: 2wd to 4wd conversion
«
Reply #10 on:
December 14, 2010, 07:25:19 PM »
Its possible yes but you would need a 3/4 ton axle to get the parts off of. Might just want to use that one lol. Could buy parts but by then you might just want to buy a Dana 60
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: 2wd to 4wd conversion
«
Reply #11 on:
December 14, 2010, 07:39:17 PM »
Well, dana 60 fronts are EXPENSIVE. I found a dana 44 front for 120 complete without the hubs. He dana 60s all go for like 400. They made 3/4 ton trucks with d44 fronts tha had 8 lugs, didn't they?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: 2wd to 4wd conversion
«
Reply #12 on:
December 14, 2010, 07:49:09 PM »
Yes they do what I was saying if you bout the 1/2 44 then a 3/4 44 just for the hubs then you would have about enough for a 60. Also what's your plans with it
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
fitz
Senior Member
Posts: 2084
Re: 2wd to 4wd conversion
«
Reply #13 on:
December 14, 2010, 08:39:32 PM »
Quote from: 1979C20 on December 14, 2010, 07:39:17 PM
. He dana 60s all go for like 400.
I would buy a truckload of Dana 60's if I could get them for $400 each. The sell for double that in Mass.
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1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: 2wd to 4wd conversion
«
Reply #14 on:
December 14, 2010, 08:56:20 PM »
Those dana 60 fronts are just the axle housing and no gears! And, I wouldn't buy a dana 44 6 lug and a full dana 44 8 lug. I would buy the 6 lug, and then the 8 lug hubs?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
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2wd to 4wd conversion