Everyone, us included, is tired of hearing about “COVID” related supply-chain issues. We FINALLY got the Rebel in – why did it take so long? Well, the King Shocks we ordered to test the Rebel took over 9 months to arrive. We won’t bore you with the details; you’ve been delayed enough so… what’s the scoop? First thing  we did was look everything over and compare it to the standard 1500. The truck appears the same as the standard 1500 in configuration but sits approximately 1″ taller in stock form.

Measurements: Stock

STOCK 2019 Ram 1500, Hemi 2019 Ram Rebel, Hemi
Front Fender to Floor 36.5″ 37.875″
Rear Fender to Floor 39″ 40″
Front Pinch Weld to Floor 13.625″ 15″
Rear Pinch Weld to Floor 14.75″ 16.375″

The rake from the rear to the front measures almost exactly 2″ rear high, measured at the fender. This is deceiving as the fender openings are not identical and thus, an imperfect place to measure the truck’s actual “stance”. We like to use a common body-line or, in this case, the pinch weld as it’s flat and runs the length of the cab providing more consistency in measuring height alteration.

At the pinch weld, the Rebel actually sits about 1.5″ high in the rear.

Installation of Performance 2.5″ System

This customer opted to run the Performance 2.5 System boasting Carli-spec King 2.5″ Diameter Remote Reservoir front coilovers. To correct the front geometry and ensure full travel range of the coilovers, the system includes Carli Front Control Arms and a set of Carli/Crown Performance Brake Lines.

Out back, matching rear 2.5″ King Piggyback Shocks, dual-rate soft-ride Coil Springs and a set of Extended Sway Bar End-Links round off the package.

Everything installed perfect BUT the stance was off. From the front, it appeared rear low. The side, it appeared level to slightly rear low and from the back, it looked perfect. Perspective is everything in “stance”. Here, we strive for a truck that appears level from the side and front but rear high from the back. Normally, this is achieved when the truck sits 1/2″ to 1″ higher in the rear than the front.

Measurements: Standard Performance 2.5 System

Performance 2.5, Stock Wheels/Tires 2019 Ram Rebel, Hemi
Front Fender to Floor 40.5
Rear Fender to Floor 40″
Front Pinch Weld to Floor 17″
Rear Pinch Weld to Floor 17″

According to the above, we’re dead-nuts level at the pinch weld/chassis and slightly rear low, visually, at the fender. This is the perfect example of why we chase the slightly rear-high stance to get the look we’re after. This chassis sits perfectly level BUT appears rear low.

We went scouring through the several coil revisions we did on the 2019+ 1500 platform and found a revision marked “1 inch too tall”. In running the numbers, that’s the perfect spring!

We operate within certain compressed and free height parameters when developing coil springs. Altering the ride height of a spring results from changes in rate via pitch (coil angle), wire diameter (gauge of material used) and placement of the rate transition relative to the coil’s travel. These “dual rate” springs have a very soft first rate and second soft-ride rate. These are both reduced from the factory rate.

The initial rate is NOT a rate you’ll utilize at ride height. Think of it more like a tender-spring on a coilover; at ride height, it’s blocked out. As the rear end extends, the initial rate of the coil spring opens to maintain tension on the spring mounts and keep everything seated through the extended travel stroke of the Carli Spec shock.

On the 1″ taller springs, the rate transition moves higher in the coil spring shortening the initial spring rate and extending the load-bearing (at ride-height) spring rate. These  springs are pictured on the left compared to the standard 1500 springs pictured on the right. Having this additional rate in the spring increases the average overall spring rate of the coil and will sit the rear end higher.

With the 1″ Taller Springs, the truck sat exactly where we wanted it!

Measurements: Performance 2.5 System, 1″ Taller Rear Spring

1″ Taller Rear Coil Springs + Added 35″ x 12.5″ r18 Tires 2019 Ram Rebel, Hemi
Front Fender to Floor 41″
Rear Fender to Floor 41.625″
Front Pinch Weld to Floor 17.750″
Rear Pinch Weld to Floor 18.25″

Rather than scrapped R&D parts, these 1″ taller rear coils are now being blueprinted for the Rebel. Before hitting the “go-button” on the production of the springs, we’re having a couple sets made to put on local trucks and confirm this wasn’t an anomaly.

Once we confirm these springs, we’re off to the races for those with the Rebel! We’re hoping to see the prototype coils within a few weeks; we’ll check them and, assuming all is well, roll to production which takes 6-8 weeks. All in all, the Rebel threw us a curve ball and – rather than toss on a 1″ spacer for the Rebels as many would do (and you can do in the interim), we’re taking the time to do it correctly! This means early 2022 for the Rebel kits!

RAM 1500    vs.    Rebel

Performance 2.5 Equipped

Measurements: 1500 vs. Rebel

Comparing RESULT to Standard 1500

*Performance 2.5 Installed*

2019 Ram 1500, Hemi

295/70 r18  (34″ x 11.5″)

Standard Springs

2019 Ram Rebel, Hemi

35″ x 12.5″ r18

1″ Taller Springs

Front Fender to Floor 40.75″ 41″
Rear Fender to Floor 41″ 41.625″
Front Pinch Weld to Floor 17.25″ 17.75″
Rear Pinch Weld to Floor 17.625″ 18.25″

The Rebel starts 1″ taller than the standard 1500 BUT, with the 1″ taller Rebel-specific coil springs, they end up in the same spot save for some discrepancy given the differentiation in tire height. The same will be true for the Eco-Diesel variants; subtract 1″ from the stated lift heights for the standard Ram 1500 4×4 Kit and you have your Rebel figures.

As the Rebels require a different coil spring to sit rear-end proper, we’ll need to revisit the “HD” coil option. We offer this for the previous generation 1500 but, seeing as we now have 2 options for rear-springs based on platform, we’ll need to decide on which platform (perhaps both?) we’ll base the “HD” (+500lb constant load) variant.

Optioning your Rebel

The 1500s are far more sensitive to weight-added thanks to their lighter springs rates. Adding options like the Multi-Function Tailgate and Ram Box, especially when combined, add 250lbs of static weight to the rear end. This difference in weight has the Rebel sitting nearly 1″ low even with the Rebel Specific springs!

As you can see, this weight difference, all else held constant between the two Rebels tested, has a significant difference in the rear-end height of the vehicle. We’ve not tested these options individually but will be recommending people who option both MFT and Ram-box to purchase our “HD” coils, once available unless the above-pictures stance is acceptable to the customer.

Comparing REBEL to:

REBEL with MFT and Ram-Box

2019 Ram Rebel, Hemi

No Ram Box or MFT

35″ x 12.5″ r18

1″ Taller Springs

2019 Ram Rebel, Hemi

WITH Ram Box & MFT

35″ x 12.5″ r18

1″ Taller Springs

Front Fender to Floor 41″ 40.75″
Rear Fender to Floor 41.625″ 39.875″
Front Pinch Weld to Floor 17.75″ 17.375″
Rear Pinch Weld to Floor 18.25″ 16.625″

Lastly, there are variables worth mentioning that will deviate the above figures:

  • Tire Size and inflation pressure will vary the above measurements.
  • Ram-Box and Multi-Function Tailgate Configurations: we’ve not tested these options individually at this time to know how the heavier Ram-Box/MFT configured trucks will sit with our rear springs.
  • Off-Road Package: We’re told this sits 1″ taller (same as the Rebel). We would assume this means all Rebel figures apply BUT have not confirmed this.
  • Aftermarket bumpers/Constant Bed-loads: We are unable to accommodate these options at this time. The Carli spec coilovers are at their MAX preload when you receive them; they cannot be further preloaded to accommodate aftermarket bumpers. Further, we do not have an “HD” coil spring at this time to accommodate constant bed-loads.