The #5249 is called a street probe. I had the #5244 in my hand. I returned it for the #5249. Saved 50 bucks. BIG difference in quality between the probes. I should have kept the #5244. Planning on swapping in the future. Not a bad probe. Box said the #5249 was for diesel applications.
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Bill R
94 2500 SLT 4x4 5 Speed, 3. 54 LS, JRE 4" exhaust, Autometer Pyro, Boost & Water temp gauges, Bosch 215 HP injectors, Timing @ 14. 7 º, JRE Stage III #4 plate 270/675, AFC spring kit, Scotty Air, Bully Dog Propane Injection, Roadmaster Active Suspension, Optima Red Tops, Geno`s Exhaust Blanket,Espar Heater (won it!), Synthetic lubes throughout.
[This message has been edited by HEMI®Dart (edited 09-29-2000). ]