Alright please excuse me i may be in the wrong forum and this may be kind of a dumb question but could some one explain air bags to me and what they would help a rig with?

My guess is added towing waight ability and also smoother ride but thats my guess.

Im asken because im looking at a truck with them.

thank you

 

Airbags add weight capacity to a truck's suspension - they effectively increase the spring rate. Unlike leaf-spring overloads, they are easy to adjust so that the truck rides at your desired ride height when driving empty or loaded.

 

Ok thank you thats what i kind have had thought now another couple of questions. Firestone dual guage airbags by that can anyone tell me what kind of quality these are? Additionally what kind of fuel milage and rpms would i be turning with a 01 2500ho with a 6speed and 3:71. rpms say at 65?

I think i already have said this but im looken at a truck, i love the cummins engine however never really dealt with them in new dodges mostly ive dealt with them in conversion jobs and machinery.

Once again thank you

 

The Firestones are quality items, and based on the limited truck info - you could expect 15 -20 mpg.

 

Just so you know, there are no 3.71 gears - only 3.73 but only 3.54 and 4.10 gears were OEM equipment for 2nd gen CTD's....so, either your gear info is incorrect or someone has swapped in 3.73's.....as to the rpm at 65 mph, you would need to know the tire size and be certain of the gear ratio to accurately calculate that.

 

Thats my bad on the 3.71 the guy claims there 3.73 so how sure are you on that. DOnt take that wrong im just asken. Alright on the fuel stuff could anyone give me the formula for figuring rpm/mph.
Thanks sorry to cause any problems

 

It will say the gear ratio it left the factory with on the sticker under the hood.

 

I am 100% certain of the 2 gearing options for a 2nd gen CTD....and I'm not offended that you are trying to be sure of the information you are being told.

You are not causing any problems!

Assuming 245/75 tires (we need to know the actual tire size), you should expect around 1900 - 2000 rpm at 65 mph with the 6 speed and 3.54 gears.

 

Thanks, the guy that owns the rig hasnt got back to me in a three days now i asked him for the vin and to check the gearing. I think i ****** him off but i really dont care he isnt the only guy selling a cummins around here so ill probably go else where.

 

The gearing ratio will be in the glove box or on the side of the door.

 

Ok i talked to the sales person the truck is on consinmant he says that the guy changed them out to 3:73 any ideas on a swap like that id hear out any opinions or concerns. Im very appriative for any ideas on this i dont want to get stuck with a lemon or a bad set up.

 

While its possible I'm guessing the saleman has his head stuck up his,...

65 mph in my 6 speed 3.55 with 235/85 (+/- 33's?) tires is around 1800.

 

I agree with Ph4tty, quite likely that the salesman has no clue what he is talking about. And your tires are about 31.75 inches tall