The specification desk
Find the right configuration. Search 34,354 chart rows transcribed from manufacturer towing guides. See the engine, cab, axle, required equipment, and source together. These are published comparison ratings; your truck’s equipment and loaded weight still matter.
A model missing here may have a published maximum without detailed chart rows. Check coverage or browse every cataloged model .
2021 · OEM chart
6.4L V-8 HEMI · 4WD · Mega Cab · 6'4" · 4.10 axle
Equipment: RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX; trans A8 8HP75; DRW
GVWR 14000 lb
Page 12, section 'RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 17,160lb GCWR 25,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Regular Cab · 8' · 4.10 axle
Equipment: RAM 3500 4X4 REGULAR CAB: TRADESMAN 8' BOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 13, section 'RAM 3500 4X4 REGULAR CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 17,120lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · 6'4" · 4.10 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN 6'4"BOX; trans A8 8HP75; SRW
GVWR 10700 lb
Page 10, section 'RAM 3500 4X2 CREW CAB: TRADESMAN 6'4"BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 17,110lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · Box delete / box off · 4.10 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN W/O 8' BOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 15, section 'RAM 3500 4X4 CREW CAB: TRADESMAN W/O 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 17,100lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · RamBox (length not specified in chart) · 4.10 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN W/ RAMBOX; trans A8 8HP75; SRW
GVWR 10700 lb
Page 10, section 'RAM 3500 4X2 CREW CAB: TRADESMAN W/ RAMBOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 16,990lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · 8' · 4.10 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN 8' BOX; trans A8 8HP75; SRW
GVWR 11100 lb
Page 11, section 'RAM 3500 4X2 CREW CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 16,940lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · 6'4" · 4.10 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN 6'4" BOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 13, section 'RAM 3500 4X4 CREW CAB: TRADESMAN 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 16,780lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · RamBox (length not specified in chart) · 4.10 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN W/ RAMBOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 14, section 'RAM 3500 4X4 CREW CAB: TRADESMAN W/ RAMBOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 16,670lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · 8' · 4.10 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN 8' BOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 14, section 'RAM 3500 4X4 CREW CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 16,580lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Mega Cab · 6'4" · 4.10 axle
Equipment: RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 12, section 'RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 16,470lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Mega Cab · RamBox (length not specified in chart) · 4.10 axle
Equipment: RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR W/ RAMBOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 12, section 'RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR W/ RAMBOX', row 6.4L V-8 HEMI A8 8HP75 axle 4.10
Conventional 16,410lb GCWR 24,000 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Regular Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X2 REGULAR CAB: TRADESMAN 8' BOX; trans A8 8HP75; SRW
GVWR 10700 lb
Page 9, section 'RAM 3500 4X2 REGULAR CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,970lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Regular Cab · Box delete / box off · 3.73 axle
Equipment: RAM 3500 4X2 REGULAR CAB: TRADESMAN W/O BOX; trans A8 8HP75; SRW
GVWR 10700 lb
Page 10, section 'RAM 3500 4X2 REGULAR CAB: TRADESMAN W/O BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,850lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Regular Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X2 REGULAR CAB: TRADESMAN 8' BOX; trans A8 8HP75; DRW
GVWR 14000 lb
Page 9, section 'RAM 3500 4X2 REGULAR CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,710lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Regular Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X4 REGULAR CAB: TRADESMAN 8' BOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 13, section 'RAM 3500 4X4 REGULAR CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,620lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · 6'4" · 3.73 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN 6'4"BOX; trans A8 8HP75; SRW
GVWR 10700 lb
Page 10, section 'RAM 3500 4X2 CREW CAB: TRADESMAN 6'4"BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,610lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · RamBox (length not specified in chart) · 3.73 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN W/ RAMBOX; trans A8 8HP75; SRW
GVWR 10700 lb
Page 10, section 'RAM 3500 4X2 CREW CAB: TRADESMAN W/ RAMBOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,490lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Regular Cab · Box delete / box off · 3.73 axle
Equipment: RAM 3500 4X4 REGULAR CAB: TRADESMAN W/O BOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 13, section 'RAM 3500 4X4 REGULAR CAB: TRADESMAN W/O BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,490lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · Box delete / box off · 3.73 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN W/O 6'4" BOX; trans A8 8HP75; SRW
GVWR 10700 lb
Page 10, section 'RAM 3500 4X2 CREW CAB: TRADESMAN W/O 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,480lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN 8' BOX; trans A8 8HP75; SRW
GVWR 11100 lb
Page 11, section 'RAM 3500 4X2 CREW CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,440lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · Box delete / box off · 3.73 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN W/O 8' BOX; trans A8 8HP75; SRW
GVWR 11100 lb
Page 11, section 'RAM 3500 4X2 CREW CAB: TRADESMAN W/O 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,370lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · 6'4" · 3.73 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN 6'4" BOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 13, section 'RAM 3500 4X4 CREW CAB: TRADESMAN 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,280lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Regular Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X4 REGULAR CAB: TRADESMAN 8' BOX; trans A8 8HP75; DRW
GVWR 14000 lb
Page 13, section 'RAM 3500 4X4 REGULAR CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,260lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · Box delete / box off · 3.73 axle
Equipment: RAM 3500 4X4 CREWCAB: TRADESMAN W/O 6'4" BOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 14, section 'RAM 3500 4X4 CREWCAB: TRADESMAN W/O 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,180lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · RamBox (length not specified in chart) · 3.73 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN W/ RAMBOX; trans A8 8HP75; SRW
GVWR 11000 lb
Page 14, section 'RAM 3500 4X4 CREW CAB: TRADESMAN W/ RAMBOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,170lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 2WD · Crew Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X2 CREW CAB: TRADESMAN 8' BOX; trans A8 8HP75; DRW
GVWR 14000 lb
Page 11, section 'RAM 3500 4X2 CREW CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,080lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN 8' BOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 14, section 'RAM 3500 4X4 CREW CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 14,080lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Mega Cab · 6'4" · 3.73 axle
Equipment: RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 12, section 'RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 13,970lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · Box delete / box off · 3.73 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN W/O 8' BOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 15, section 'RAM 3500 4X4 CREW CAB: TRADESMAN W/O 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 13,960lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Mega Cab · RamBox (length not specified in chart) · 3.73 axle
Equipment: RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR W/ RAMBOX; trans A8 8HP75; SRW
GVWR 11400 lb
Page 12, section 'RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR W/ RAMBOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 13,910lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Crew Cab · 8' · 3.73 axle
Equipment: RAM 3500 4X4 CREW CAB: TRADESMAN 8' BOX; trans A8 8HP75; DRW
GVWR 14000 lb
Page 14, section 'RAM 3500 4X4 CREW CAB: TRADESMAN 8' BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 13,730lb GCWR 21,500 lb 2021 · OEM chart
6.4L V-8 HEMI · 4WD · Mega Cab · 6'4" · 3.73 axle
Equipment: RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX; trans A8 8HP75; DRW
GVWR 14000 lb
Page 12, section 'RAM 3500 4X4 MEGA CAB: BIG HORN / LONE STAR 6'4" BOX', row 6.4L V-8 HEMI A8 8HP75 axle 3.73
Conventional 13,660lb GCWR 21,500 lb ← Previous 50 Page 2 of 2