Sonnax Electric Line Booster for 545RFE Transmissions

007husky · **Posted:** Sat Jan 23, 2010 11:55 am

CATCRD wrote:

007husky wrote:

Would this be the same as the resistor that comes with the transgo kit ? ?

From the pictures, it doesn`t seem they could add a lot of logic within the plug itself...

Yes, all it is is a resistor.

why pay $50 bucks for a few cents part?

stoutdog · **Posted:** Sat Jan 23, 2010 12:25 pm

LibertyCRD wrote:

The biggest fuel economy gains I've seen are from going with numerically higher gears. The second biggest is from going to an electric fan.

Interesting. So, are these actually practical upgrades for our CRDs? :?:

geordi · **Posted:** Sat Jan 23, 2010 1:41 pm

x2, but I would be inclined to think that your CRD needs the shorter gears (numerically higher) b/c it is hauling around a lot more WEIGHT with the accessories you mentioned.

Steel bumpers are awesome, and I want one very much... But believe firmly that it will hurt my MPG a lot.

edit: I just had an interesting idea: If numerically higher gears are better for mileage, why are so many car makers putting larger and larger rims / tires on their cars? 18" rims on the new Jetta TDI for example. For us, getting a higher gear number would mean changing out the 16" rims and 30" diameter 215/85 tires for maybe 15" rims and a 235/40 rubber-band tire size.

Granted, the Jeep would sit a lot lower and look like a goofy low-rider... But would the mileage go up from spinning the engine so much faster? Logic still says no.

CATCRD · **Posted:** Sat Jan 23, 2010 11:01 pm

007husky wrote:

CATCRD wrote:

007husky wrote:

Would this be the same as the resistor that comes with the transgo kit ? ?

From the pictures, it doesn`t seem they could add a lot of logic within the plug itself...

Yes, all it is is a resistor.

why pay $50 bucks for a few cents part?

You pay for plug and play. No solder required and reversible for dealer visits, I guess.

Hydraulic Jack · **Posted:** Tue Oct 26, 2010 11:09 pm

Is this something that people are buying and using? HJ

CATCRD · **Posted:** Wed Oct 27, 2010 7:39 pm

Not here, no.

4sefed · **Posted:** Sun Nov 07, 2010 12:38 pm

ordered one last week, hopefully be here this week.

only question I do have is this. the transgo kit comes with a resistor, and some people don't like the way it shifts, and eventually the TCM brings the shifting back to something it's happy with. Will the TCM not do the same thing with this part?

i'll take a few pics, and post a what I think of the thing once it's in and I've driven it for a week or so.

KJ_andy · **Posted:** Sun Jul 01, 2012 5:08 am

4sefed wrote:

ordered one last week, hopefully be here this week.

only question I do have is this. the transgo kit comes with a resistor, and some people don't like the way it shifts, and eventually the TCM brings the shifting back to something it's happy with. Will the TCM not do the same thing with this part?

i'll take a few pics, and post a what I think of the thing once it's in and I've driven it for a week or so.

How did this mod work over time?

racertracer · **Posted:** Sun Jul 01, 2012 5:53 am

I have one these(http://www.transmissionpartsusa.com/45R ... 957lb2.htm) for sale. it was removed from my previous totaled CRD.

$25 plus shipping if anyone wants it.

Glend · **Posted:** Sun Jul 01, 2012 8:04 am

Isn't this just a $50 resistor? Pretty sure this is the same mod as the resistor mod. Am I wrong? Has anyone opened one up?

Sonnax Electric Line Booster for 545RFE Transmissions

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