Call me crazy but I like it

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.

jstacey8

Senior Member
Joined
Oct 17, 2014
Posts
746
Reaction score
146
Location
hiram maine
Ram Year
2014
Engine
hemi 5.7
What's a rough cost to drop a cummins into a rcsb? Or would one be better to buy a regular cab cummins and cut the frame?
 

DannyMK2

Senior Member
Joined
Mar 25, 2013
Posts
1,732
Reaction score
498
Location
Long Island, NY
Ram Year
2015 Power Wagon
Engine
6.4 Hemi
its too vauge of a question for anybody to answer. chances are more then its worth.
 
Joined
Dec 26, 2013
Posts
2,685
Reaction score
1,583
Location
Texas
Ram Year
2011 Ram 1500
Engine
Hemi 5.7
You would need to beef up the frame in the front to adjust to the weight and new coils, There have been several people who have done this
 

QwikKota

Senior Member
Joined
Apr 2, 2015
Posts
1,528
Reaction score
1,112
Ram Year
2015
Engine
5.7L
What do you mean by cut the frame? The base model 2500 would be a 6.5' bed would it not? Same as on an RCSB. Not sure if you can get the single rear wheel config that way though. The engine and tranny could be $6k or more if low miles. What would be really cool is a Cummins 4BT out of a bread truck.
 
OP
OP
J

jstacey8

Senior Member
Joined
Oct 17, 2014
Posts
746
Reaction score
146
Location
hiram maine
Ram Year
2014
Engine
hemi 5.7
I'm thinking it would be better off to buy a regular cab Cummins and cut the frame and take a peice out to make it a short bed but how would it ride?
 

Canadian_Ram

Senior Member
Joined
Aug 15, 2014
Posts
181
Reaction score
50
Location
Alberta, Canada
Ram Year
2013
Engine
Hemi 5.7
You would be changing the ergonomics of a large portion of suspension and other associated components.

If you were to do it, do it properly. Spend the money on a RCSB Shell and source a healthy engine/trans. Swaps aren't cheap and when people try to cheap out you often find them on craigslist.
 

R/T_Fire

Senior Member
Joined
Feb 3, 2015
Posts
3,432
Reaction score
1,207
Location
Pleasant Grove
Ram Year
2011
Engine
Hemi 5.7
What do you mean by cut the frame? The base model 2500 would be a 6.5' bed would it not? Same as on an RCSB. Not sure if you can get the single rear wheel config that way though. The engine and tranny could be $6k or more if low miles. What would be really cool is a Cummins 4BT out of a bread truck.

They do not produce a Cummins in a regular cab short bed, only long bed.

As for cost the cheapest way is to cut down a long bed cummins equipped truck. doing the conversion over the other way is very expensive and time intensive as any swap is. What is your end goal? street truck, show truck or drag truck. What Cummins? 12Valve, 24Valve, Common Rail or the newest 6.7L common rail??? all have different levels of cost and tuning and what not built into them.
 

R/T_Fire

Senior Member
Joined
Feb 3, 2015
Posts
3,432
Reaction score
1,207
Location
Pleasant Grove
Ram Year
2011
Engine
Hemi 5.7
I'm thinking it would be better off to buy a regular cab Cummins and cut the frame and take a peice out to make it a short bed but how would it ride?

Ride would be the same, except you would have a slug up front for a motor cause the cummins is one heavy *****. your basically going to cut about 14" out of the frame.

I don't know your fab skill level but I caution attempting this unless you are a experienced fabricator, as this is a complicated conversion. Alot of little tricks to make this a safe conversion and not a dangerous death trap.
 
OP
OP
J

jstacey8

Senior Member
Joined
Oct 17, 2014
Posts
746
Reaction score
146
Location
hiram maine
Ram Year
2014
Engine
hemi 5.7
I wouldn't be doing the cutting but it's a dream build and figure I might as well start. It was actually Calebgohamm on Instagram truck that was photoshopped to a rcsb and now I just want one and thought it would be kick ass
 

SlowRoller

Senior Member
Joined
Apr 21, 2015
Posts
925
Reaction score
282
Ram Year
2014
Engine
5.7
What's a rough cost to drop a cummins into a rcsb?

Truthfully,,, not much at all,,,,,, Just back the RCSB up, drop the tailgate, load up the Cummins, drive away.

Now, converting a 1500 RCSB to be powered by a Cummins is a whole nuther thing...

If ya got's to have a Cummins,, start off with one that's factory-installed in a 2500,,, A professional frame/body shop should be able to :superhack: for $$$$$,
 

SlowRoller

Senior Member
Joined
Apr 21, 2015
Posts
925
Reaction score
282
Ram Year
2014
Engine
5.7

No, but I can say you're crazy!!! :roflsquared:

Hey, I had a '76 Pontiac 400 w THM400 powering a '71 Mach 1 Mustang when I was your age. The 351C was knocking and I had just dropped a butt-load to rebuild the 400,,, and,,, shortly thereafter,,, I totaled that car,,, =(

Did the conversion in my Dad's Farm shop. Motor mounts, driveshaft,,,, welded everything with a GAS TORCH.

If you want it bad enough, and you have the skills, go for it, but the amount of effort required to put that GM 400 into a 71 Ford is NOTHING compared to the project you are contemplating,,,

Let us know what you decide,,,
 
Last edited:

BigA

Senior Member
Joined
Jul 20, 2014
Posts
292
Reaction score
104
Location
Ohio
Ram Year
2019
Engine
5.7 Hemi Etorque
I think a cummins, rcsb, dually would be pretty *******... :naughty:


I would be different but then again I would think it would look kinda weird for a Dually to be that short as it would almost be wider then it is long.
 
Last edited:

6.7CumminsDrvr

The Dude abides………
Joined
Dec 6, 2011
Posts
2,060
Reaction score
1,429
Location
Georgia
Ram Year
2021
Engine
392
Start with a 2500 and cut the frame, then source the bed. The Cummins weighs a ton and you'll need the beefier frame and drivetrain to handle said weight and stupid power they make.

And for the bed, Google power wagon 1500. Ram brought a one off rcsb 1500 power wagon to Easter Jeep Safari a few years back. Cool truck, just don't have a pic handy. They took a 1500, threw power wagon axles under it, swapped the front bumper with winch (which needed the hood swapped as well) and for the bed, they modified a dually bed and cut it down. you'll know the truck when you see it.

Edit: found pic and if you scroll thru, there are a few more

https://www.google.com/search?q=150...;1920;1280&usg=__LBEeCdn6UJyTeH064zHS1zUrJP8=
 
Last edited:

QwikKota

Senior Member
Joined
Apr 2, 2015
Posts
1,528
Reaction score
1,112
Ram Year
2015
Engine
5.7L
They do not produce a Cummins in a regular cab short bed, only long bed.

As for cost the cheapest way is to cut down a long bed cummins equipped truck. doing the conversion over the other way is very expensive and time intensive as any swap is. What is your end goal? street truck, show truck or drag truck. What Cummins? 12Valve, 24Valve, Common Rail or the newest 6.7L common rail??? all have different levels of cost and tuning and what not built into them.

Ah, I did not know that. I have seen reg cab duallies and just figured they were short bed. A friend of mine converted a V10 2500 to a 5.9L Cummins from an older wrecked Club Cab but looking back at his pictures it is also a long bed. They probably wouldn't sell too many short bed heavy duty work truck configs.
 

EagleChief

Senior Member
Joined
Jan 6, 2015
Posts
1,943
Reaction score
968
Location
Oklahoma
Ram Year
2014 Big Horn
Engine
5.7 Hemi
Ah, I did not know that. I have seen reg cab duallies and just figured they were short bed. A friend of mine converted a V10 2500 to a 5.9L Cummins from an older wrecked Club Cab but looking back at his pictures it is also a long bed. They probably wouldn't sell too many short bed heavy duty work truck configs.

Most of the diesels are going to be set up to tow stuff. And, when you're pulling that much weight, the trailers are usually going to be 5th wheel or gooseneck type hitch. Unfortunately for those wanting a short bed, there is not enough room to hook up to. And, if you can make that work, the turning radius needed with a 5th Wheel/Gooseneck will be severely diminished. This would basically rule out any type of maneuvering with said trailer.

Too many times somebody has tried to put this connection in a short bed and ended up smashing the back of the truck cab/busted the window out/dented the cab corners because the front/side of the trailer hits the cab while making any type of sharp turn.
 

QwikKota

Senior Member
Joined
Apr 2, 2015
Posts
1,528
Reaction score
1,112
Ram Year
2015
Engine
5.7L
Most of the diesels are going to be set up to tow stuff. And, when you're pulling that much weight, the trailers are usually going to be 5th wheel or gooseneck type hitch. Unfortunately for those wanting a short bed, there is not enough room to hook up to. And, if you can make that work, the turning radius needed with a 5th Wheel/Gooseneck will be severely diminished. This would basically rule out any type of maneuvering with said trailer.

Too many times somebody has tried to put this connection in a short bed and ended up smashing the back of the truck cab/busted the window out/dented the cab corners because the front/side of the trailer hits the cab while making any type of sharp turn.

Another great point I didn't think of. I assume the 5th wheel hitches are typically placed over the axle?
 

Latest posts

Forum statistics

Threads
211,048
Posts
3,061,455
Members
171,116
Latest member
05Fourwheel
Back
Top