Can the 2021 RAM 2500 make a U-turn?

No. Needs more than 40 ft.

45.4ft curb to curb

5.4 ft short on a 40 ft street.
2021 RAM 2500 Tradesman 4x2 Reg Cab 8' Box.
Tighter than 1% of 300 cars (2021).

Street width, feet

Street 40 feet curb to curb.

2021 RAM 2500 Tradesman 4x2 Reg Cab 8' Box. Top view, to scale.

2021 RAM 2500 Tradesman 4x2 Reg Cab 8' Box: U-turn by street width
Street	Margin	One move
30 ft	-15.4 ft	No
34 ft	-11.4 ft	No
38 ft	-7.4 ft	No
40 ft	-5.4 ft	No
42 ft	-3.4 ft	No
46 ft	+0.6 ft	Yes

2021 RAM 2500: turning circle by trim, 40 ft street
Trim	Circle, ft	Margin	One move
Tradesman 4x2 Reg Cab 8' Box	45.4	-5.4 ft	No
3500 Chassis SLT 2WD Reg Cab 60" CA 143.5" WB	46.3	-6.3 ft	No
3500 Chassis Tradesman 2WD Reg Cab 60" CA 143.5" WB	46.3	-6.3 ft	No
3500 Chassis SLT 2WD Reg Cab 60" CA 143.5" WB 10K GVWR	46.4	-6.4 ft	No
3500 Chassis Tradesman 2WD Reg Cab 60" CA 143.5" WB 10K GVWR	46.4	-6.4 ft	No
3500 Chassis SLT 2WD Reg Cab 84" CA 167.5" WB	53.1	-13.1 ft	No
3500 Chassis Tradesman 2WD Reg Cab 84" CA 167.5" WB	53.1	-13.1 ft	No
Tradesman 4x4 Reg Cab 8' Box	45.4	-5.4 ft	No
Tradesman LB 4WD	51.2	-11.2 ft	No
3500 Chassis Laramie 2WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis Laramie 2WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
3500 Chassis Limited 2WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis Limited 2WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
3500 Chassis SLT 2WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis SLT 2WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
3500 Chassis Tradesman 2WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis Tradesman 2WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
3500 Chassis SLT 4WD Reg Cab 60" CA 143.5" WB	46.3	-6.3 ft	No
3500 Chassis SLT 4WD Reg Cab 60" CA 143.5" WB 10K GVWR	46.4	-6.4 ft	No
3500 Chassis Tradesman 4WD Reg Cab 60" CA 143.5" WB	46.3	-6.3 ft	No
3500 Chassis Tradesman 4WD Reg Cab 60" CA 143.5" WB 10K GVWR	46.4	-6.4 ft	No
Tradesman Crew Cab RWD	47.9	-7.9 ft	No
Big Horn 4x2 Reg Cab 8' Box	45.4	-5.4 ft	No
Big Horn LB RWD	51.2	-11.2 ft	No
Lone Star 4x2 Reg Cab 8' Box	45.4	-5.4 ft	No
Lone Star LB RWD	51.2	-11.2 ft	No
Tradesman Crew Cab LB RWD	53.5	-13.5 ft	No
Tradesman LB RWD	51.2	-11.2 ft	No
3500 Chassis SLT 4WD Reg Cab 84" CA 167.5" WB	53.1	-13.1 ft	No
3500 Chassis Tradesman 4WD Reg Cab 84" CA 167.5" WB	53.1	-13.1 ft	No
Tradesman Crew Cab 4WD	47.9	-7.9 ft	No
3500 Chassis Laramie 4WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis Laramie 4WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
3500 Chassis Limited 4WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis Limited 4WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
3500 Chassis SLT 4WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis SLT 4WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
3500 Chassis Tradesman 4WD Crew Cab 60" CA 172.4" WB	54.4	-14.4 ft	No
3500 Chassis Tradesman 4WD Crew Cab 60" CA 172.4" WB 10K GVWR	54.6	-14.6 ft	No
Big Horn 4x4 Reg Cab 8' Box	45.4	-5.4 ft	No
Big Horn LB 4WD	51.2	-11.2 ft	No
Lone Star 4x4 Reg Cab 8' Box	45.4	-5.4 ft	No
Lone Star LB 4WD	51.2	-11.2 ft	No
Tradesman Crew Cab LB 4WD	53.5	-13.5 ft	No
Big Horn Crew Cab RWD	47.9	-7.9 ft	No
Lone Star Crew Cab RWD	47.9	-7.9 ft	No
Big Horn Crew Cab LB RWD	53.5	-13.5 ft	No
Lone Star Crew Cab LB RWD	53.5	-13.5 ft	No
Big Horn Crew Cab 4WD	47.9	-7.9 ft	No
Lone Star Crew Cab 4WD	47.9	-7.9 ft	No
Big Horn Crew Cab LB 4WD	53.5	-13.5 ft	No
Lone Star Crew Cab LB 4WD	53.5	-13.5 ft	No
Big Horn Mega Cab 4WD	51.2	-11.2 ft	No
Lone Star Mega Cab 4WD	51.2	-11.2 ft	No
Laramie Crew Cab RWD	47.9	-7.9 ft	No
Laramie Crew Cab LB RWD	53.5	-13.5 ft	No
Laramie Crew Cab 4WD	47.9	-7.9 ft	No
Laramie Crew Cab LB 4WD	53.5	-13.5 ft	No
Power Wagon Crew Cab 4WD	48.2	-8.2 ft	No
Laramie Mega Cab 4WD	51.2	-11.2 ft	No
Limited Longhorn Crew Cab RWD	51.2	-11.2 ft	No
Longhorn 4x2 Crew Cab 6'4" Box	47.9	-7.9 ft	No
Limited Longhorn Crew Cab LB RWD	51.2	-11.2 ft	No
Longhorn 4x2 Crew Cab 8' Box	53.5	-13.5 ft	No
Limited Longhorn Crew Cab 4WD	51.2	-11.2 ft	No
Longhorn 4x4 Crew Cab 6'4" Box	47.9	-7.9 ft	No
Limited Longhorn Crew Cab LB 4WD	51.2	-11.2 ft	No
Longhorn 4x4 Crew Cab 8' Box	53.5	-13.5 ft	No
Limited Longhorn Mega Cab 4WD	51.2	-11.2 ft	No
Longhorn 4x4 Mega Cab 6'4" Box	51.2	-11.2 ft	No
Limited Crew Cab LB RWD	53.5	-13.5 ft	No
Limited Crew Cab RWD	47.9	-7.9 ft	No
Limited Crew Cab LB 4WD	53.5	-13.5 ft	No
Limited Crew Cab 4WD	47.9	-7.9 ft	No
Limited Mega Cab 4WD	51.2	-11.2 ft	No

What this cannot tell you

Curb-to-curb turning circle as listed.

Mirrors and overhang need more room.

2 or more sources
1 source
Model-level, rule or estimate
Sources disagree

How values are checked

Can the 2021 RAM 2500 make a U-turn?

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What this cannot tell you