93 Dually 2wd to 4wd swap

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93 Dually 2wd to 4wd swap

Postby kyled19 » Tue Sep 19, 2017 2:22 pm

Ok so as my sig says I have a 93 2wd dually. I found a guy selling a 90 4wd dually that said he would sell me just the parts I need to do the 4wd swap. My question is, does anyone have a detailed list of all the parts I need to make the swap? can I do the entire swap using a donor truck or are there certain parts that won't swap from a 4wd to a 2wd? If the whole swap can't be done using just a donor truck what parts can I use and what will I have to make or find somewhere else? He gave the option to buy just the parts I wanted or buy the entire truck minus motor and trans (I would still get the t case) for a little bit more. Which do you guys think is the best option.

P.S. my truck is auto and extended cab, the donor truck is auto and regular cab
93 d350 extened cab dually dennyt stage 2 3200 rpm gov spring intake and 4 inch exhaust. 4th gen seats
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Re: 93 Dually 2wd to 4wd swap

Postby Philip » Tue Sep 19, 2017 6:03 pm

Those axles would bed 3:07 gearing. An auto and 3:07' is fine if your just a DD. An auto and 3:07's towing is another issue. Now for the parts.

Front spring hangers, front springs rear mount, front springs, Engine cross member, trans cross member, rear spring 6" blocks, front springs, clutch pedals and m/c mount, exhaust system, drive shafts, T-case shifter.

If I missed anything I am sure someone will step in and let you know.

You would need a OD unit for a 518 for a 4x4 to mount the T-case. The 90 has a 727 in it. Different trans with no OD.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
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Re: 93 Dually 2wd to 4wd swap

Postby kyled19 » Tue Sep 19, 2017 7:19 pm

ok so it is actually a 91 does that make a difference? here's a link to the add doesn't give much info on the truck but I did notice that it is ppumped which is interesting. also is the downpipe different or just the exhaust after the downpipe?

https://phoenix.craigslist.org/cph/cto/d/1991-dodge-cummins-1-ton-4x4/6295660157.html
93 d350 extened cab dually dennyt stage 2 3200 rpm gov spring intake and 4 inch exhaust. 4th gen seats
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Re: 93 Dually 2wd to 4wd swap

Postby Philip » Wed Sep 20, 2017 7:15 am

That truck doesn't have an I/C. So it should be a 727 in it. But with a p-pump engine it might have had a OD trans swapped in.

Down pipe is the same on 2wd and $x$. The pipe after the down pipe is different. It has a couple of bends in it to clear the t-case.

That is a C&C truck. That dually axle is 4" narrower than your current axle.

You might be better off just buying the complete truck for your swap then sell off the unwanted parts. Remember that p-pump engine with a question mark on it will bring $1500 just because it is complete.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
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Re: 93 Dually 2wd to 4wd swap

Postby kyled19 » Wed Sep 20, 2017 9:50 am

How do I tell if it is a od trans? and I intended on keeping my current rear axle so that's not a big deal. Also from the pics it looks like it has a factory intercooler. maybe its a 91.5. Image I don't have enough cash to buy the whole truck otherwise I would and take the ppump off and put it on my truck.
93 d350 extened cab dually dennyt stage 2 3200 rpm gov spring intake and 4 inch exhaust. 4th gen seats
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Re: 93 Dually 2wd to 4wd swap

Postby kyled19 » Wed Sep 20, 2017 12:43 pm

ok so I just found out it is a non overdrive trans. Is there anyway to make the non overdrive tcase work with an overdrive tranny? or should I not waste my time and just buy a different tcase

Edit: I think I miss understood originally. All I need is the tailshaft from a 518 the tcase is the same for a 727 and a 518 correct?
93 d350 extened cab dually dennyt stage 2 3200 rpm gov spring intake and 4 inch exhaust. 4th gen seats
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Re: 93 Dually 2wd to 4wd swap

Postby Richie O » Wed Sep 20, 2017 4:44 pm

I would buy the whole thing.
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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Re: 93 Dually 2wd to 4wd swap

Postby Philip » Thu Sep 21, 2017 5:33 am

The t-case would work on a OD trans. Both year range of trucks used the same t-case.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
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Re: 93 Dually 2wd to 4wd swap

Postby kyled19 » Thu Sep 21, 2017 4:20 pm

anyone know of a good right up on a 2wd to 4wd swap?
93 d350 extened cab dually dennyt stage 2 3200 rpm gov spring intake and 4 inch exhaust. 4th gen seats
kyled19
fuel screw!!!!
 
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Re: 93 Dually 2wd to 4wd swap

Postby Richie O » Thu Sep 21, 2017 5:33 pm

1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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Re: 93 Dually 2wd to 4wd swap

Postby kyled19 » Fri Sep 22, 2017 9:50 am

Does anyone know if I am going to have to make any modifications to the trans tunnel? As well as does anyone have advice on getting the 2wd engine cross member out? if it possible to pull the whole front suspension out in one big piece?
93 d350 extened cab dually dennyt stage 2 3200 rpm gov spring intake and 4 inch exhaust. 4th gen seats
kyled19
fuel screw!!!!
 
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Joined: Sat Oct 25, 2014 12:04 am
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Re: 93 Dually 2wd to 4wd swap

Postby PToombs » Fri Sep 22, 2017 5:14 pm

If you have an auto, 2wd, you will need to biggie size the hump. 4X4 and/or standard trans is the bigger hump.
pete

Just enough power to break everything behind the crankshaft.
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Re: 93 Dually 2wd to 4wd swap

Postby matthewh » Sun Sep 24, 2017 3:54 pm

Thought the ext cab, no matter the drive or transmission was always had the large hump?
'93 W350 5spd Getrag, 4.10 gears, 83k miles and counting, Mods: LPPP AKA Ma Dually
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Re: 93 Dually 2wd to 4wd swap

Postby Philip » Mon Sep 25, 2017 5:51 am

matthewh wrote:Thought the ext cab, no matter the drive or transmission was always had the large hump?



Its hit or miss with Xcab's. Some have the large hump with auto's. Some do not. I think it depends mostly if it was a 4x4 or not. I have had two 2wd Xcab's both were flat floors. The cab on my truck was from a 4x4. It has the hump in it.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
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