robert chilton

Man the qoute from my local cummins dealer was nearly double that and that wasnt even installed! I need a new cummins dealer.

Prospector

Do you have their phone number handy, I'll gladly pay for overnight shipping on that price.

Thanks for all your replies.....
I just made a round trip from california to texas on HWY 10, I could have used the jacobs on a couple of those hills. I could not believe the amount of dust on the front wheels when we got back, this is after a couple of Texas thunderstorms.....i guess true....things are bigger in Texas

FiverBob

I am quoting from memory having seen figures a long time ago - - these could be off by somewhat, but should be close enough to get some idea of what it does. The figures I saw were supposed to be for a 2003 HO.

Bare Cummins deceleration HP - - about 65

With Jacobs Exhaust brake - - about 174.

Yeh, it helps a lot.

Bob

T398

That's about what I recall was 175 ft lbs of braking force.

rich

cummins southern plains in san antonio tx of I 35 and rittamin rd cant remember their phone # have written down somewhere. give them your engine serial number its 8 digits on the engine tag and they will quote you a price

J BODY

I've installed about a dozen brakes at work on the 06 automatics. They work great. They'll aid in engine warm up by staying on until the engine temp reaches around 160. Coming down a grade if the rpms get too low it will automatically disengage the brake, shift the trans down, and re-apply the brake again. Everyone i've talked to with them said it was well worth it.

Prospector

Does the current brake work on a 04 CTD? Not sure how to tell if it's a 04.5

thanks....

BobwithoneO

I had an US Gear D-Celerator installed last week. Works good, fits in the exhaust pipe ahead of the muffler. It was under $900. through the factory who sells through a dealer in Mo. It is electrically activated so I didn't have to install a compressor or vacuum pump. 03 CTD manual 6 spd.

I will list my stuff when I figure out how to do it.

Jeff in TD

Prospector,

I believe the Jake Brake for 03-04 is different than the Jake Brake for 04.5 to current trucks, since the 03-04's have 3.5" exhaust from the turbo to the muffler, where the 600's are 4".

There should be a tag on the front of the engine to identify it.

Prospector

Jeff in TD: Thanks for the heads up, now i just need to located a brake for the 04 Auto, I've located one for the 06.

rich: Did locate the Cummins dealer in San Antonio. The price for an 06 is higher than the 750.00 mentioned.

to everyone else ......thank you

Prospector

P.J

I was quoted $1,500 even (installed) today.

FiverBob

I was lucky - - they were running a special incentive on them when I ordered my truck. $250 installed if you bought it with the new truck.

J BODY

...06 and up automatics only through the dealer. I've seen alot of snowbirds running the PAC set up on the older (03-05) trucks and most have liked them.

shep1

If you go to the Cummins web site they have a lot of info on the Jacobson exhaust brake. Search their site for the tech. info.
It's made by Jacobson and they call it a "Jake brake".It has a threded hole for a pyrometer. Mine came with two Jake Brake badges that you can put on the outside of your truck. I put them about 1" under the 3500 badge on each side. Ordered it with the truck and the dealer installed it. About a $1650 option, included install.
I've used it towing a 6k travel trailer and wouldn't be with out it in the mountains. It will hold this set up at 55mpm comming down the steepest part of I-70 into Denver.

CoastalDav

When I bought mine, this dealer had it the cheapest of anyone. You might check with them and see if they are better in price than you've found. I bought my there and took it to a Dodge dealer to install. 1 hour install time.

Saved more than 300 bucks.

http://www.mechanicsvilledodge.com/i...m?action=parts

Dave