When you push OD-off, you only get 1-2-3 gears. No 4-5.
The CRD usually shifts into 3rd at about 20 mph and the TC lockup clutch will apply at about 38 mph.

Yes, there are two 2nd gears, 2nd and 2nd Prime.
2nd Prime is supposed to be for kickdown only. I don’t think this feature it activated in the CRD because I have never been able to force it to downshift like that.
Frequently I have to manually move the shifter down to 2nd to get it to downshift when I want it to.

_________________
U.S. Army Retired

OK, got it now; 4 & 5 are OD, it's not separated extra ratio like in heavies, which I used to drive. I've been wondering, when counting the shifts, where's the OD for 4th...
Was bit confused, as in ALLPAR they show 545 as six speed unit and call 3rd gear "2nd prime" and 3rd as 4th: * On 545RFE, 3rd is only accessible via kickdown in some situations, and is referred to as “2 prime.”
The pic and text at the bottom of the page.

_________________
Grumpy turtle from Finland, deep in a swamp at Balkans... Safe place in this unsafe world...

Okay, we have decided to try the Malahat climb again this Monday but you won't hear from me until Saturday.
If I am driving it, I am going camping.

This time I will have a new transmission cooler installed and OD Off and hold it to 3000-3200 rpm.
Will this get me to up to 45mph?

Just checked. They have the new front pump and say, "Additionally they have the Sonnax Spring Update Installed".
So I guess that this is the pressure regulator spring?
What about limit and accumulator valves?


Edit: seems that they are really recommending a "RFE Spin On Filter Adapter" too.

After reading through most of cascadetransmissionparts.com I think that this is what they recommend:

front pump, comes with stronger pressure regulator spring
- this spring won't produce any noticeable change because the computer adapts but has purpose (see below)

shift kit, latest version has updated limit valve

heavy duty accumulator spring, because they tend to break

line pressure booster (electrical harness)
- this sometimes comes with the pressure regulator spring that the new front pump already has
- the booster/spring combo keeps the adaption closer to the middle of the range so less chance of an error code thrown

pump seal

and throw in that RFE Spin On Filter Adapter if you like


edit- the accumulator spring is part of the front pump
check with your supplier if it is included with the rebuild
part# Sonnax 44912-01

Certainly. OD off 3000 rpm makes 100 km/h, 62 mph.

_________________
Grumpy turtle from Finland, deep in a swamp at Balkans... Safe place in this unsafe world...

Nice. I have nothing to prove (to the drivers behind me).
I will hold to 70kph and far less rpm.

Which heavy duty accumulator spring?
The transgo shift kit should include all new accumulator springs.

And what spin on filter adapter is that?
The transmission already has a spin on filter inside it.

_________________
U.S. Army Retired

Id like to also know abut what accumulator spring.

And the spin on filter adapter is a metal spin on adapter, vs the plastic that come in the 545RFE, there are claims it breaks often.

_________________
05 CRD
GDE Eco Full Torque & Towing TCM Tune
Suncoast, TransGo HD2, Sonnax Line Pressure Booster, upgraded Mopar pump/springs
Weeks' Stage 1 & 2
ProVent 200
Samco Hoses
V6 Airbox
Cummins In Tank Pump
2nd Gen Fuel Filter Head,
Donaldson P551313 Secondary Filter
Fumoto valve
OME lift, JBA UCAs
Backbone Winch Mount

Let me know if this one is already in the shift kit; I will have a look too:
(They are so confident that this will break, they sell it in a 5 pack!)
http://www.cascadetransmissionparts.com ... ng5pk.aspx

Looks like that spring goes in the pump.
A new pump should address that issue.

_________________
U.S. Army Retired

Like I mentioned before.
If you are dropping the transmission for the purpose of making upgrades to the pump, why not just replace the whole pump?
If the new pump that cascade is selling isn’t good enough, ask them why?

_________________
U.S. Army Retired

That was always the plan. I just wanted to make sure that whatever pump I buy has the upgraded springs.
The first step is to try to figure out what springs need an upgrade.

I am very interested in the answers to this. I have read answers about upgrading pump springs from yes, do it, to no, totally unnecessary with a newer upgraded Mopar pump.
I have a Mopar pump on the way. Would love to know if i should replace any pump springs while i have it all apart.

thanks

_________________
05 CRD
GDE Eco Full Torque & Towing TCM Tune
Suncoast, TransGo HD2, Sonnax Line Pressure Booster, upgraded Mopar pump/springs
Weeks' Stage 1 & 2
ProVent 200
Samco Hoses
V6 Airbox
Cummins In Tank Pump
2nd Gen Fuel Filter Head,
Donaldson P551313 Secondary Filter
Fumoto valve
OME lift, JBA UCAs
Backbone Winch Mount

Squeeto,
Hello from Aus.,
I bought my KJ specifically to tow my 2300kg race yacht. It was cheap ,had enough power and I didn't care if it rusted out in a few years.
I have fallen in love with it and now use it for most things.
It has done about 20000 klms towing now, my yacht and trailer ( mush the same spec as the one you posted the photo of) and really had very few problems, have over heated it once on a 105 degree C. day.
I don't drive at the same speeds as you do in the US. ,roads aren't good enough but sit between 90 and 100 klm hr.
I don't use overdrive when towing and generally manually change the box to keep the revs up. I have an egt gauge fitted and mostly drive by that.

_________________
2006 KJ CRD
Yeti tune
EGR delete
Straight through exhaust
Airtex fuel pump
2 micron filter
2" lift

Wow
and thx for the info

Post has been edited with more info:

A hot tune will help, but only at lower elevations. My GDE Hot tune lost quite a bit of power when I moved out to Utah and it feels pretty much like the stock tune, just with better MPG's. i spent a long time thinking I had an issue and was jumping back and forth between stock and Hot tune and noticing almost 0 difference. You can only spin the turbo so fast and as you increase in elevation the turbo speed required to make the same boost must increase. Eventually they have to cut boost to keep the turbo safe.

I am currently running an upgraded GTB2056 turbo with a custom tune that pushes over 200hp at 6500' and it "helps" but not night and day. The tune still cuts back with higher elevation above 6500' because even this turbo will run out of steam up high.

It does it, this thing is just not very far up there on my list of preferred tow rigs for a near 5000 lb brick shaped travel trailer. My last tow was two weekends ago into the national forest by my house and I had recently got 4.10's installed. I didnt see a huge bump from the 4.10's.

A WK Grand Cherokee 3.0CRD, a WKII Cherokee Ecodiesel, the Toureg, etc will all be much better if you dont like the size of the F150.

_________________
2006 CRD - GTB2056 turbo by Dieselguy86, Eco Trans Tune, Lift Pump, Week's, HDS Tstat, Racor Filter, ARP's, OME 790's+Top Plate, JBA 2.5", JBA UCA, Moab's+265/75R16, ARB Bull Bar, 4.10's, TrueTracs

You are running bigger tires for this gearing?

Due to wild fire closures and a few other reasons, we cut our trip short.

So we are back and I want to report about the Malahat and Highway 19 North of Parksville drive.
The transmission cooler worked so well!

The temperature was more consistent and stayed around 70C (158F).
The only time the temperature reached 90C (194F) was accelerating from stop to highway speed and only for a few seconds until torque lockup.
Ambient temperature 32C going, 36C returning (90F, 97F).

The engine temperature went 1/2 mark past 12:00 a few times on the long hills but this is okay. Still that 11 blade fan upgrade might be quite beneficial too.

Grotsoldaat, flash7210 thanks for info and advice. I kept my ego in check and kept the speed around 85-90kph (53-56mph). Everybody past me except one dude in an ice cream truck doing 49mph until I past him.