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#1 |
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Join Date: Aug 2007
Location: Tinker, OK
Posts: 369
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Dually Questions... Can I make a dually??
I will be looking for another project soon, a 73-80 reg cab dually. They seem kinda hard to find, so can I take a regular run of the mill long bed and slap some dually fenders and rear end and on it have a dually? I need to know if the wheelbases are the same from the factory and what problems I may encounter.
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1976 Chevy 1/2T 2wd SWB ![]() ![]() 327/Saginaw 4spd 3.73:1 LQ4 6.0/T56 Build thread http://67-72chevytrucks.com/vboard/s...d.php?t=772071 LFSalleeII@gmail.com ![]() |
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#2 |
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Join Date: Jul 2008
Location: Where I come from, it's cornbread and chicken...
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Re: Dually Questions... Can I make a dually??
all that will work, you'll also have to change the hubs up front...you could also change the hubs on a srw axle with drw axle hubs as long as it's a 1 ton axle like a D70 or 14 bolt
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#3 |
6>8 Plugless........
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Location: Prairie City, Ia
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Re: Dually Questions... Can I make a dually??
I don't think the inner bud wheels would work if you use a standard srw housing. The drw housings are wider to allow the 2 tires per side.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#4 |
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Re: Dually Questions... Can I make a dually??
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#5 |
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Join Date: Jul 2009
Location: West Jefferson, OH
Posts: 999
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Re: Dually Questions... Can I make a dually??
No they won't, that would shove them into the inner tubs even more. The dually d70 axle is much wider, and installing srw hubs will make the track width even wider in that case (just an example to prove my point). Installing dually hubs on a srw 14bolt basically gets you a cab&chassis rear axle, which is narrow because they did not have factory type beds mounted on them to cause a clearance issue.
Also, it would be best to convert a 1ton truck. A drw D70 would bolt right in without having to change spring hangers and shock mounts. Last edited by USSkoval; 02-05-2010 at 01:00 AM. |
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#6 | |
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Re: Dually Questions... Can I make a dually??
Quote:
so you have to have a drw axle... |
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#7 |
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Join Date: Jul 2009
Location: West Jefferson, OH
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Re: Dually Questions... Can I make a dually??
I'm not sure, but a 3/4 crew cab may have the 1ton frame and rear spring perch spacing. Can you confirm?
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#8 |
I have car A.D.D.
Join Date: Feb 2009
Location: Greeley, Northern Colorado
Posts: 4,147
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Re: Dually Questions... Can I make a dually??
Just to affirm what you want to do. There were many companies offering dually conversions on trucks in the 80s & 90s. They are still out there, just not as popular for new trucks now. What those conversions did was basically add tires and fenders.
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-Gerald Building vehicles in memory of the first "car guy" I ever knew, my Grandpa. Bob Dunham 1935-2009. Rest in peace. 61 GMC Suburban SOLD The 86 build thread SOLD Are you a Colorado member?Click here. |
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#9 |
I have car A.D.D.
Join Date: Feb 2009
Location: Greeley, Northern Colorado
Posts: 4,147
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Re: Dually Questions... Can I make a dually??
See KIT #300 as an example. And AF-275 Fenders.
http://www.arrowcraft.com/products.php#kits
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-Gerald Building vehicles in memory of the first "car guy" I ever knew, my Grandpa. Bob Dunham 1935-2009. Rest in peace. 61 GMC Suburban SOLD The 86 build thread SOLD Are you a Colorado member?Click here. Last edited by Driveway Dreams; 02-05-2010 at 01:10 AM. |
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#10 | |
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Join Date: May 2008
Location: Eville IN.
Posts: 365
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Re: Dually Questions... Can I make a dually??
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#11 |
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Re: Dually Questions... Can I make a dually??
I'm 99% sure the crew cab has the same frame as the 1 ton ...there was a thread about frame dimensions a while ago...it was in there...
if I took the stock srw axle and put drw hubs on it, would I be able to mount 19.5" semi wheels on my truck stock height with no modification besides adapters...I'm wondering, because that's the look I want to go for if I do the dually...I don't want it lowered and I don't want it jacked to the moon...just stock height with some semi steel wheels... |
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#12 |
Registered User
Join Date: Jul 2009
Location: West Jefferson, OH
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Re: Dually Questions... Can I make a dually??
You may want to try it with your stock hubs first, the 19.5 adapters I've seen aren't that thick. Also if you switch hubs, then you have to deal with brake mounting points on the axle tubes.
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#13 |
6>8 Plugless........
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Location: Prairie City, Ia
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Re: Dually Questions... Can I make a dually??
I think the problem with using the srw axle housing will be with the inner tire to spring clearance. The cab chassis trucks have narrower leaf springs to make extra room for clearance. I think the drw D70HD is atleast 3" wider than a D70 srw. The wider axle places the hubs farther out allowing the drw offset wheels to get both wheels in the wheel well.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#14 | |
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Re: Dually Questions... Can I make a dually??
Quote:
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#15 |
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Re: Dually Questions... Can I make a dually??
I think the offset on the 19.5 is different than the stock 16s also
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#16 |
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Location: West Jefferson, OH
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Re: Dually Questions... Can I make a dually??
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#17 |
6>8 Plugless........
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Location: Prairie City, Ia
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Re: Dually Questions... Can I make a dually??
All the ones I have worked on have had 2" leaf springs and not 2 1/2" like a non cab and chassis is where I am getting at.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#18 | |
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Join Date: Jul 2009
Location: West Jefferson, OH
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Re: Dually Questions... Can I make a dually??
Quote:
I have seen the 2 1/4 springs used in the vans. |
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#19 |
6>8 Plugless........
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Location: Prairie City, Ia
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Re: Dually Questions... Can I make a dually??
Chuck, if it didn't work you could always use a billet spacer to get the clearance you need. I've ran them on my dually before and haven't had any problems with them.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#20 | |
Account Suspended
Join Date: Jul 2008
Location: Where I come from, it's cornbread and chicken...
Posts: 3,122
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Re: Dually Questions... Can I make a dually??
Quote:
where could I get the drw front hubs, rotors and calipers from and also the drw hubs and calipers for the rear... |
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#21 |
Account Suspended
Join Date: Jul 2008
Location: Where I come from, it's cornbread and chicken...
Posts: 3,122
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Re: Dually Questions... Can I make a dually??
strange that they would put narrower springs on something with a higher GVWR
I would try it, but if it doesn't work, then I'm out the money for the hubs...and like you said I'd have to figure a way to mount the calipers... how much do you think a drw axle should run...are there other drw axles besides a d70? |
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#22 | |
Registered User
Join Date: Jul 2009
Location: West Jefferson, OH
Posts: 999
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Re: Dually Questions... Can I make a dually??
Quote:
14bolt and d70 hubs are supposed to be interchangeable. |
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#23 | |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
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Re: Dually Questions... Can I make a dually??
Quote:
You should be able to buy a complete D70HD for around $250 I would think. Other dually axles in a dodge are a Dana 80 in 1994-02. Fords also used Dana80's from 99 up and they are expensive in the ford and dodge parts world. Pre 94 they are D70HD's. Fords used sterling 10.25's from 1987-1997. Pre 87 they as well had D70HD's. If I remember correctly the 14bff drw cab and chassis housings were narrower than a stock srw housing. A lot of truck pulling guys use that housing to get their track width on the rear as far inside as they can.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#24 |
Registered User
Join Date: Jul 2009
Location: West Jefferson, OH
Posts: 999
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Re: Dually Questions... Can I make a dually??
The housings are the same, other than the mounting for the brake hardware. The narrower track is only a result of the hubs.
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#25 | |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
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Re: Dually Questions... Can I make a dually??
Quote:
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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