8 speed swap

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RamDiver

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Every eBay link I've clicked on Ramforum has done that, for the last few months.

I just assumed something was going on with eBay.

You know, come to think of it, I may have had the same experience and just thought it was caused by my tweaked PC.

The site software is doing something irregular with ebay links because the link works fine before the site coding becomes involved. :cool:

On second thought, maybe ebay has recently made changes that their URLs are stupidly long.
That, or the RF site has just suddenly decided it doesn't like extra-long URLs that used to work and now misbehaves as a result. LOL

.
 
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Wild one

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It appears that some folks on the Durango forum have converted from the older Durango rotary dial to the 2018+ shift lever. It might be doable on a 8 speed ram.

The issue is no 4th Gen 8 speed had a console shifter,so you have to make your own plastic pieces,it wouldn't be an issue for somebody good with a 3D printer,hint/hint Ken :Big Laugh:
 

Ken226

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The issue is no 4th Gen 8 speed had a console shifter,so you have to make your own plastic pieces,it wouldn't be an issue for somebody good with a 3D printer,hint/hint Ken :Big Laugh:
I bet I could do it. But my truck is a 6 speed and already has a console mounted lever shifter. It would be a fun project though when I finally do the 8 speed swap.

I do however know of someone else on the forum who has the skills to make a console mount for the Durango RT lever, the know-how to do the wiring, AND he has an 8 speed.

Hint hint, cough cough.

My truck made the round trip to LLoyd to pick up the 8 speed... lol...

The bezzle is acid etched primed, Just waiting on the USB plug . rather drill it out before paint.

So now im back to the waiting game. According to Mopar Parts Canada they wont see half my order for 2 weeks minium as lots of the parts are B/O



View attachment 532578

View attachment 532579

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That R/T lever would look pretty awesome mounted to that console!
 
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HemiLonestar

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It appears that some folks on the Durango forum have converted from the older Durango rotary dial to the 2018+ shift lever. It might be doable on a 8 speed ram.

They make it sound like they accomplished some monumental task, but the 3rd gen Durango is the same platform as the Grand Cherokee and those were littered with non-dial shifters in consoles....just sayin'....

I bet I could do it. But my truck is a 6 speed and already has a console mounted lever shifter. It would be a fun project though when I finally do the 8 speed swap.

I do however know of someone else on the forum who has the skills to make a console mount for the Durango RT lever, the know-how to do the wiring, AND he has an 8 speed.

Hint hint, cough cough.

View attachment 565368
shifter.jpg
 

Wild one

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I bet I could do it. But my truck is a 6 speed and already has a console mounted lever shifter. It would be a fun project though when I finally do the 8 speed swap.

I do however know of someone else on the forum who has the skills to make a console mount for the Durango RT lever, the know-how to do the wiring, AND he has an 8 speed.

Hint hint, cough cough.



View attachment 565368


That R/T lever would look pretty awesome mounted to that console!
I know the Jeep and Challenger/Charger shifters have been used a fair bit with the 8 speed swap.
 

2012ram1500z

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Figured I would throw together a brief list of info for swapping in the 8hp70 in early 4th gens… I couldn’t find a lot of this out there so some was trial by fire and then leaning on others (thanks to Alex LaBrash), as they were the biggest help. The process would be similar in earlier models but part numbers and custom work may have to change up.

8 Speed Parts List:

8hp70 Transmission -
Used - $500-$900

Torque Converter -
Comes with JY Trans - $0

Torque Converter Bolts x6 - $1.10 (6509361AA)

Flex Plate (Flywheel) - $43 (4752574AB)
Flex Plate Bolt Spacer -$5 (4736613AA)
Crankshaft Pilot Sleeve - $14 (4736283AA)
Trans Mount Bracket - $72 (68147349AB)

Trans Mount Bracket Bolts x4 - $2 (6102400AA) - (M10x1.5x30)

Trans Mount - $70 (68147348AB)

Trans Mount Nuts x3 - $5 (6502979) - (M10x1.5)

Drive Shaft - Size Depends on Cab - $75-150 Used

Drive Shaft Bolts Trans Side and Diff $5 Each (6506497AA) (8 in total, can reuse old diff bolts)

Drive Shaft Carrier Crossmember - $300 (68055090AB)

Drive Shaft Carrier Bracket to Xmember - $6 (52105587AD)

Drive Shaft Carrier Bolts x 4 - $5 (6101060)
Driveshaft Carrier Nuts x 6 - $3 (6504728)

Transmission Vent Hose - $16 (4627854AB)

Dial Shifter or Console Shifter - Dial (Part# Varies on 2wd/4wd) - $300 New ($50 Used)

Engine to Trans Bolts (Pass Thru Block and Thread into Trans)x2 - $2.55 (6101985) (M10x1.5x45)

Engine/Converter dust Shield (Bottom 2 bolts, thread into Trans) x2 - $2.55 (6101985) (M10x1.5x45)

Sound German Automotive wiring/tcm and Recalibration - $1250

Fluid - Walmart.com Best Cost Option for Mopar Fluid - 6qts deal x2 ($110 Each - 12qts total)

Lines:
3/4-16 Tap - (8an)
2 - 8an ORB to 6an Fittings
2 - 90 Degree 6an to Hose Barb Fittings
5 Ft - 3/8 ID Transmission Hose
4 - Hose Clamps
Cut Factory lines near block and flared the end with flare tool for a raised lip

Misc:
Wire to Run Brake Feed to SGA Harness.

File to File Down tab on Can Bus Line on SGA Harness (purple connector) to Fit Can BUS C Star Connector (under steering wheel area, star connector with yellow wires)

Bolts/Screws to Mount SGA Computer and OBD Port Connector (I went under drivers seat)

Zip Ties - To Clean up Wiring

Grommet if you pass Harness Thru Cab (I Used 1.5" ID (1 3/4 Inch Cut Out) From Amazon, This same grommet can plug the shifter cable hole in firewall as well, if you opt for no neutral cable. (will need 1 3/4 hole saw for this grommet)

Solder / Crimpers For SGA Harness Install
Add a fuse (micro fuse) I tapped into fuse 99 (climate control) - make sure power remains constant in accessory, run, AND crank - goes to yellow wire in sga harness)


Reused 6 Speed:
Transmission Crossmember - No Modifying was needed
Engine to Trans bolts (Bolts that pass thru trans and go into block (top 4 bolts)

Flex Plate Bolts
Trans Mount Nuts
Starter and Bolts
Trans lines and Cooler (after modifying)
Cable Brackets (frame)

Optional Items:
PPE Trans Pan
Performance Converter
Transmission Tune
Trans Heater
Trans Oem Lines

Trans Oem Coolant Lines (won’t be able to use valve)

Rear Main Seal (add RTV to List if Doing Seal)
Neutral Cable - $51 (68211076AG)
Neutral Cable Bracket on Trans - $8 (68149025AB)
Neutral Cable Bracket on Trans Bolts x2 - $6 (6510721AA) - (M8x1.5x18)
Neutral Cable Bracket on Frame (Reuse 6 speed Bracket - 68080743AA)
Neutral Cable Bracket to Starter Bolt and Plastic Clip (Reuse 6 Speed)
Steering Column Shroud - $36 (1GE44DX9AC)

Tips:

1.) sga harness only needs brake input, power, ground, accessory power, can bus(purple connector, and shifter wires …. Using the can bus reduces the need to use a lot of the wires (kit can be used in non can bus vehicles, these would need the other wires)

2.) the driveshaft carrier crossmember I used is the oem one and I welded it in…. You could use a piece of square tubing (1x4) just measure your frame rails for length. If you can’t weld you could riv nut some angle iron into the side of the frame to bolt the angle iron to frame then the angle Iron to your crossmember.

the recalibration sga does made my dash work like stock, trans temp reads out, no cel lights, and P,R,N, D all are in sync with dial shifter.

4.) the factory 8hp70 tcm is in the trans, you will have two ports on the sga harness for diag/tuning….. the obd port is for tuning the oem tcm, the 3 wire gm style connector is for adjusting the new tcm from sga.

5.) the flywheel is bolted to the crank , welds facing toward rear of vehicle, DONT NOT FORGET TO INSERT THE CRANK PIOLT BUSHING.

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2012ram1500z

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The wiring from SGA has the shifter wiring. You tap into the cam bus for the inputs, only the brake input you need to manually get.
So I have a question I’m down to taping into the cam bus but where I tapped into isn’t working is there a better spot or am I don’t something wrong
 

emjohn4

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So I have a question I’m down to taping into the cam bus but where I tapped into isn’t working is there a better spot or am I don’t something wrong
Where did you tap into the CANBUS?

If you're tapping into it at the OBS2 port, it will not work.

I connected mine to the CANBUS from the unused tow/haul plugs that were taped to the wire harness behind the ebrake pedal.
 

Tool Man Dan

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I am tempted to swap in a 8hp into my 2018 2500 6.7hemi in the future. I believe that is a factory option in future years. Is anyone familiar with years this is an option?
 

HemiLonestar

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I am tempted to swap in a 8hp into my 2018 2500 6.7hemi in the future. I believe that is a factory option in future years. Is anyone familiar with years this is an option?
 
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