Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC1995SUBURBAN K2500, 7.4 NREPAIR AND DIAGNOSIS (SINGLE PAGE)DRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESDRIVE AXLE RATIO IDENTIFICATIONAXLE RATIO IDENTIFICATION ("C" SERIES)
1995 GMC Suburban K2500, 7.4 N
Axle Ratio Identification ("C" Series)
1995 GMC Suburban K2500, 7.4 NSECTION Axle Ratio Identification ("C" Series)
AXLE RATIO IDENTIFICATION ("C" SERIES)
| Application & Code | Ratio | |||
|---|---|---|---|---|
| 8 1/2" Ring Gear | ||||
| P1A, XPD, XPL | 3.08:1 | |||
| KRC, KSC (1) , PFD, PGD (1) , P4A (1) , P5A, XPF, XPJ (1) , XPM, XPP (1) | 3.42:1 | |||
| PHD, PJD (1) , P7A, P8A, XPG, XPK (1) | 3.73:1 | |||
| 9 1/2" Ring Gear | ||||
| P6A (1) , RYA, RYF (1) , TXW, TXZ (1) | 3.42:1 | |||
| RYB, RYG (1) , TXX, TYA (1) | 3.73:1 | |||
| RYC, RYH (1) , SJA, TXY, TYB (1) | 4.10:1 | |||
| RYD, RYJ (1) | 4.56:1 | |||
| 10 1/2" Ring Gear | ||||
| RYK, RYN (1) | 3.42:1 | |||
| APC, ARC (1) , BZD, KWC, KXC, RYL, RYP (1) , XYL, XZC (1) , YAK, YAN (1) , YAX (1) , YBB, YBF (1) , YBJ, YBM (1) | 3.73:1 | |||
| ASC, ATC (1) , RYM, RYR (1) , XYM, XYP (1) , XYY, XZA (1) , YAL, YAP (1) , YAS, YAT (1) , YAY, YAZ (1) , YBC, YBG (1) , YBK, YBN (1) | 4.10:1 | |||
| XYN, XYR (1) , XYZ, XZB (1) , YAM, YAR (1) , YAU, YAW (1) , YBA (1) , YBD, YBH (1) , YBL, YBP (1) | 4.56:1 | |||
| 11 1/2" Ring Gear | ||||
| UXP, UXX | 4.63:1 | |||
| UXR, UXY | 5.13:1 | |||
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RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.