5th gen 1500 REAR BUMPER CONVERSION

Tacobender24

Junior Member
Joined
Oct 28, 2021
Posts
24
Reaction score
49
Location
New Jersey
Ram Year
2015
Engine
5.7 Hemi
Yes that's right. 5th gen rear 1500 bumper can be fit onto our 4th gens. Here's my write up on how to do it. I will be happy to answer any questions.

Notes before getting started:
- trailer harness WILL need to be extended since the plug is on the passenger side of the license plate instead of the driver's side
- if equipped with parking sensors, yes they will need to be extended
- the 5th gen license plate lights have different pigtails on the wire harness so they will need to be changed out. I have yet to find them for sale anywhere

Now to the write up.
So I'm not going to go over how to take off the factory rear bumper since there are many videos on how to do that. Once the factory bumper is off you will need to do some very minor mods to the frame.

The first of the 2 mods is removing the clips on the center mounts and cutting a little section out so the bolts can slide up and down for adjustment
You must be registered for see images attach


Once that's done, move onto the frame horns. There's a rivet on each side in between the the original mounting holes that helps center the factory bumper. Ive marked up a pic; number 2 is the rivet. On the back side if the frame horn the rivet is flat and tacked into place. Grind off the back side of the rivet and the rest can be hammered out. Once the hole is open, you'll need to enlarge the hole where the rivet was to about half inch large if I remember correctly. Large enough so a factory bumper bolt can pass through.
You must be registered for see images attach

Once that's done your frame is ready to accept the 5th gen bumper and not other modifications are required. Now to move onto the bumper.

The 5th gen rear bumper has a center section that rounds out and could make contact with the trailer hitch. In all honesty though you might not have to cut anything. However I did to be safe and have enough clearance for my rigid reverse pods. The section I cut out was about 12.5" and it's a very close fit so that was it doesn't look jacked. I've provided a picture for a better understanding
You must be registered for see images attach

Now it's time to mount up the bumper. So the 5th gen rear bumper has mounting brackets that are different from our 4th gens. Instead of bolts going into welded on nuts, the bolts are riveted into place on the brackets so you will need new nuts to go on instead.
The rivet that was removed is the hole where the TOP bolt on the 5th gen bumper is going to go. Now before you wonder if the second bolt will attach to the frame, it will NOT. Because the 5th gen bumpers sit lower on the new body style, the mounts are lower. That's why you drill out the rivet. So not only will the top bolts mount onto the 4th gen frame without major modifications, but also so it lines up nicely with the body and there's no weird angles. Here's a pic:
You must be registered for see images attach

So as you can see here the lower bolt doesn't attach to the frame which I was slightly worried about any wobbling. So I went to home Depot and got some 3/16 inch steel plate and made some reinforcement brackets to mount to both bumper bolts and also have it connect to the frame. Yes in the picture my bracket is bent so I recommend cutting some metal to use as a gap filler. Still works just fine as is though. With the sides bolted up I put the two center bolts through the bumper that are covered by the license plate and bolted them up as well.
You must be registered for see images attach
You must be registered for see images attach

As you can see in the pic above, this is why we notched out the center of the mount on the frame. The factory holes were lower than the bumper holes so notching them out allowed for better fitment and adjustment without giving up strength. However you will need some washers and new nuts that fit onto the factory bolts.

Now if you have factory rear parking sensors, some more slight mods will be needed. You need to be VERY careful and patient with this part since you don't wanna be buying retainer clips over and over again. The factory clips on the 5th gen bumper are slightly different in where it clips onto the sensor itself. You will need to take a Dremel with a slim grinder attachment and deepen the mounting loops. Here's a pic so you can see. Both too and bottom need to be done.
You must be registered for see images attach
 

Tacobender24

Junior Member
Joined
Oct 28, 2021
Posts
24
Reaction score
49
Location
New Jersey
Ram Year
2015
Engine
5.7 Hemi
Once the retainer clips have been modified, you can attach your factory sensors to the bumper. NOTE: there's a little clear o-ring on the factory sensors that you will need to remove otherwise the sensors one fit. Once you have that done, all that's left it some wiring such as extending the parking senor harness, the trailer plug and switch the license plate light harness pigtails. Double check everything and if it looks like the pics below, you're good to tighten everything down:
You must be registered for see images attach

Tailgate open with good clearance
You must be registered for see images attach

Nice and leveled with the bottom edge of the tailgate
You must be registered for see images attach

Nice lower bedside fitment

Just like that, you have a 5th gen 1500 rear bumper on a 4th gen. I know many have asked to see this and if it could be done so I'm happy to help and show that it's possible with very little modifications. No we don't have to resort to 5th gen 2500 bumpers which would actually look very bulky on out trucks with the lower hanging plastic. Hope this helps!! If you have any questions, I'm happy to answer

(The bumper assembly can be ordered online at a site called partify and can be custom painted to match your truck)

You must be registered for see images attach
 

Quick_Shifter

IG: @ak_trucks_pa
Supporting Member
TOTM Winner
Joined
Aug 14, 2018
Posts
3,082
Reaction score
2,198
Location
ASTON,PA
Ram Year
2012
Engine
HemiFever 5.7
Once the retainer clips have been modified, you can attach your factory sensors to the bumper. NOTE: there's a little clear o-ring on the factory sensors that you will need to remove otherwise the sensors one fit. Once you have that done, all that's left it some wiring such as extending the parking senor harness, the trailer plug and switch the license plate light harness pigtails. Double check everything and if it looks like the pics below, you're good to tighten everything down:
You must be registered for see images attach

Tailgate open with good clearance
You must be registered for see images attach

Nice and leveled with the bottom edge of the tailgate
You must be registered for see images attach

Nice lower bedside fitment

Just like that, you have a 5th gen 1500 rear bumper on a 4th gen. I know many have asked to see this and if it could be done so I'm happy to help and show that it's possible with very little modifications. No we don't have to resort to 5th gen 2500 bumpers which would actually look very bulky on out trucks with the lower hanging plastic. Hope this helps!! If you have any questions, I'm happy to answer

(The bumper assembly can be ordered online at a site called partify and can be custom painted to match your truck)

You must be registered for see images attach
I like how subtle it is.
 

Quick_Shifter

IG: @ak_trucks_pa
Supporting Member
TOTM Winner
Joined
Aug 14, 2018
Posts
3,082
Reaction score
2,198
Location
ASTON,PA
Ram Year
2012
Engine
HemiFever 5.7
It's subtle and it refreshed the look of the truck which I love. Plus it cut weight so another plus
LOL the 4th gen rear bumper is already tin foil the 5th gens are lighter?
I remember I laughed the first time I took a bumper off
 

GTyankee

Senior Member
Supporting Member
Military
Joined
Nov 2, 2020
Posts
3,349
Reaction score
4,182
Location
El Cajon Calif. 92021
Ram Year
2016
Engine
3.0 ecodiesel
2016 rear bumper .... sport style 2016 front bumper on right
You must be registered for see images attach

Front bumper painted

You must be registered for see images attach


2009 rear bumper, tailgate in cardboard box

You must be registered for see images attach


You must be registered for see images attach


You must be registered for see images attach


Officer, i want to report a Olive Tree that attacked my truck

You must be registered for see images attach

Nope, it wouldn't buff right out
 

Staff online

Forum statistics

Threads
170,844
Posts
2,555,011
Members
118,441
Latest member
Hemiipower
Top