Differential and rear axle assemblies, automotive, truck, and bus, manufacturing · Michigan

Warren Facility

Warren, MI · ~907 workers · 2 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
0.2
Avg TCR
5.4
Industry avg
0
Fatalities
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The verdict

Warren Facility runs at 4% of its industry's injury rate - far safer than the typical Differential and rear axle assemblies, automotive, truck, and bus, manufacturing workplace, earning a grade A.

Warren Facility: 0.2 TCR = 4% of Differential and rear axle assemblies, automotive, truck, and bus, manufacturing BLS 5.4 · 2y Form 300A (see methodology below)

Warren Facility safety composite

Warren Facility scores strongest on total case rate (tcr) (safer than 98% of same-industry peers) and weakest on fatalities (safer than 51%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

B

82/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0.24 per 100 workers

Safer than 98% of industry peers

DART rate
B 0 per 100 workers

Safer than 87% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Warren Facility held a steady TCR band

Warren Facility's TCR held near 0.1 from 0.3 in 2023 to 0.2 in 2024. Peak filing year was 2023 at 0.3 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2023=0.3 · 2024=0.2

OSHA ITA Form 300A scorecard

Establishment book 336350 · Warren, MI AT/BELOW-IND · MID

Grade A · TCR 0.2 · 4% of ind

  • DART 0.0 DART
  • RANK #5/61
  • PHOTO Solero Technologies
  • BOOK 2y book
  • INJ 5 inj
  • SIZE ~907 FTE

Nearest TCR peer: Solero Technologies (0.0 TCR gap)

Read with this employer → · Industry book → · Michigan employers → · Look up another →

Warren Facility in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Warren Facility averages 0.2 TCR (4% of the Differential and rear axle assemblies, automotive, truck, and bus, manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Warren Facility TCR series: 2023=0.3 · 2024=0.2 · BLS 5.4

Where Warren Facility falls in its industry

320 Differential and rear axle ass establishments

Safer than 98% of graded establishments in this industry, whose median TCR is 2.9.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #5 safest of 61 Differential and rear axle ass employers in Michigan.

Warren Facility (907 employees, TCR 0.2) among 29 same-industry peers, split at the industry median of 200 employees and a TCR of 2.9 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 01,0002,0003,0004,000 051015 Average employees Total Case Rate Warren Facility
Warren Facility (907 employees, TCR 0.2) among 29 same-industry peers, split at the industry median of 200 employees and a TCR of 2.9

Warren Facility has more employees than the Differential and rear axle assemblies, a median and a lower injury rate than the industry's median TCR of 2.9. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.2 0.0 2 0 0
2023 0.3 0.0 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

336350 · MI · Warren

320 Differential and rear axle assemblies, automotive, truck, and bus, manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 290 employers in Warren, MI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Solero Technologies 0.2 TCR
NAICS-TCR TRW Automotive-FH01 0.2 TCR
NAICS-TCR American Axle World Headquarter 0.2 TCR
NAICS-TCR Driveline Systems Engineering 0.2 TCR
STATE-SIZE East Middle School 906 FTE
STATE-SIZE Farmington Early Childhood Center 906 FTE
STATE-SIZE US MI Holland 11768 James St 910 FTE
STATE-SIZE A20000 - Department of Transportation 904 FTE
CITY-NEAR Warren Technical Center 22,693 FTE
CITY-NEAR GM Global Technical Center 21,000 FTE
CITY-NEAR Warren Truck Assembly Plant 3,804 FTE
CITY-NEAR 1855-MIDET153 1,903 FTE
NAT-TCR Pinnacle Home Care - Corporate Office 0.2 TCR
NAT-TCR Structure Tone Southwest 0.2 TCR
NAT-TCR U.S. Amines (Bucks) LLC 0.2 TCR
NAT-TCR Charleston, WV 0.2 TCR
NAT-SIZE King County Adult & Juvenile Detention 907 FTE
NAT-SIZE LM Wind Power 907 FTE
NAT-SIZE Hca Florida Lake Monroe Hospital 907 FTE
NAT-SIZE Eldorado Shreveport (220) 907 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.