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Gone Fishing!!
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Discussion Starter · #1 ·
I have my old dealer asking me about there cab-n-chaise not being able to go over 69 MPH? Does anyone know about this? I left the dealer to get into trucking and working on diesels here on the side. I left before the 6.7 came out and I'm not to much up on them as far as programs and all. The tech they have now is a Saturn tech and has no clue. I haven’t used a DRB III yet on them but wanted to see if anyone else knows about this and is there anything we can do to change the speed limit.

Thanks Chaz
 

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My 4500 and 5500 are 76mph speed limiter, and as far as I know there is no fix yet. Maybe the smarty as Bob said somthing to Marco about this seen it in a post somewhere.

flgc
 

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I know more than a few guys that have the Sterling Bullets in the 4500 and the 5500 have the same 75 mph limiter as well. I understand that its the 19.5 tires and the speed rating those all have...
 

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The BullyDog Power Pup will let you up the speed limiter on the 6.7 in the 2500/3500's so maybe it will also let you raise it in the C&C's
 

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Gone Fishing!!
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Discussion Starter · #5 ·
Thanks everyone and I know some of you are saying why would you need to go faster than 76 mph in a 4500 5500 truck:thud: It was just a question if it could be raised or not.

Does anyone make a programmer for the 4500 or 5500 trucks? I can't say for sure it would be the same as the 2500 and 3500's.
 

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Decoder Ring Specialist
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Thanks everyone and I know some of you are saying why would you need to go faster than 76 mph in a 4500 5500 truck:thud: It was just a question if it could be raised or not.

Does anyone make a programmer for the 4500 or 5500 trucks? I can't say for sure it would be the same as the 2500 and 3500's.
The 3500 C&C/4500/5500 to the best of my knowledge all share the same platform/power ratings WRT the engine, ECM, and fuel mappings. They're all DEF units so anything that works on the 3500 C&C *should* apply to the 4500/5500 without incident. Where they differ is in suspension, frame, transmission, and front/rear ends.
 
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