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5 speed swap parts *Update: A few more Qs..*


Dirty Rockstar

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I gave the search function a shot.. That "Best kept secret" didn't have much toi say for my specific query.. I basically need to know what I EXACTLY need to get for a 5 speed coversion, but mor importantly, what OTHER GMs I can nab parts from.. I already know the 282 is the onje to have.. THe isuzu one is shit.. So.. For those who did it, what do I need,m ands where else in the GM section can I look and rape parts? Thanks!

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Don't bother pulling parts from anything but another W-body. You'll give yourself a headache. You need the transmission, clutch pedal, clutch linkages, clutch master cylender, brake pedal, shifter, shifter linkages, halfshafts, ECM. That's all I can think of off the top of my head. The transmission mount is probably different, too.

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Guest TurboSedan

- HM-282 transaxle can come from J, L, N, W-body, Fiero, etc. (gearing and FDR varies however). if the 282 comes from a HO Quad-4 or Turbo 2.0L car then you'll need to swap on a V6 bellhousing.

- V6 282 flywheel (get it resurfaced). '90 flywheel is preffered (bigger)

- new clutch kit with throwout bearing (again, '90 is preferred, more surface area)

 

W-body specific parts:

 

- shifter

- shifter cables

- 5-speed center console

- clutch pedal

- brake pedal (save yourself a headache and just cut your existing brake pedal shorter)

- clutch master cylinder

- clutch slave (release) cylinder

- hydraulic line that runs between the master cylinder and slave cylinder

- clutch fluid reservoir

- some DOT-3 brake fluid for the clutch hydraulic system

- intermediate shaft with bracket

- both axles

- trans mount

- 3.1/5-speed memcal (i have one sitting here FS; can't use it anymore since i'm turbo'd)

- 3 quarts of GM Syncromesh (trans uses just over 2 quarts)

- VSS and pigtail (could possibly just reuse that stuff from your 4T60, i can't remember). i have a few spare 282 VSS if you need one.

 

that's about it. it's all bolt-in besides modifying the hole in the firewall for the clutch master cylinder, but that is easy with a Dremel w/18" flexshaft, and a tungsten carbide cutter. then you just need a hole saw to drill a hole in the floorpan for the shifter cables (again, very easy with no motor or trans in the car).

 

i really think the 5-speed conversion is ALOT easier than most people think.

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It sounds like a breeze.. SO I need to get WBody 5 speed things.. I'll see whaty In can find.. Josh, I may take you up on a few of the things you have layin around/FS.. I NEED to get to the junkyard as soon as I can.. lol.. See what I can find..

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Okay guys.. I got the shifter assy and the cables today.. All i had time for.. I need to know.. What is involved in getting the clutch/brake pedals off? I at least need the clutch pedal.. Also, what will I need in order to get my current computer to interface correctly with the 5 speed? Should I grab the whole 2.8 ECM? I'm headin back out there friday (I hope) to grab the rest, and a few other goodies.. Let me know guys.. Thanks..

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Guest TurboSedan

as far as the computer stuff goes you will only need the 3.1/5-speed memcal, not the entire ECM. just plug the new memcal into your current ECM and you'll be good to go.

 

the brake pedal is a total bitch to get out and even more of a bitch to install! i would suggest pulling out the driver's seat and laying on your back with your head crammed up under the dash while you look/feel for the bolt that holds it in (a small flourecent light will help ALOT). after you find the bolt...well....good luck! i would never want to do it again....i'd rather just cut the existing pedal shorter but it's your call.

 

the clutch pedal isn't nearly as bad. IIRC i just used two combination wrenches...i'm thinking it was 9/16" but i could be wrong. you'll need one wrench as a backup and another to loosen the nut i think (been a long time since i did it sorry). it's kind of a bitch to figure out where to hold the wrenches but you'll figure it out. make sure you grab the clutch/cruise cutoff switch and pigtail as well...you'll see them.

 

good luck!

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Thanks Josh. I'll be out there tomorrow for a Z34 hood.. So.. If I have time before court, I'll swing by the Cutlass.. The memcal in there wont work because it is a 2.8 5 speed.. So, like I said, Ill be hittin you up for that and a VSS/pigtail.. Ill bring those goodies, and see where it gets me.. Once I get all this stuff, its just a mateer of the 5 speed.. YES!! Thanks a bunch Josh..

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Guest TurboSedan

forgot to mention....if you really want that brake pedal i would definately pull the steering column out as well. that should make the job alot easier. steering column R&R is easy.

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Steve, do you have an ETA on when the Lumina might be ready?

 

No.. No clue.. I want the shit done by the end of August though..

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Another update.. All I have left to get is thew clutch pedal/linlages, flywheel, and all the misc. stuff.. DO I need the eengine harness? There is talk in another thread about a harness swap..

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You need the harness?

 

I thought you can just take the plugs off the manual trans and splice them into the manual trans?

 

The writeup on 60 tells you about how to do it on a 3.4 car.

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Guest TurboSedan

you don't absolutely need the harness. i was using a '90 GP 3.1/5-speed harness for awhile. that was great....just plug it in and it works.

 

i'm using a TGP harness now though and modifying it for use with my 5-speed was easy.

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*Wipes forehead in relief*

 

Okay, so I am goin out to the yard tomorrow for the clutch pedal, slave/master clutch cyls.. Ill prolly WTB the flywheel and misc other crap..

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Guest TurboSedan

i'd hardly consider cutting the brake pedal shorter "rigged". it's not like you're going to adversely affect braking performance or safety. just cut it shorter and put a new pedal pad on it. or not. up to you :)

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  • 4 weeks later...

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Thanks for the bump~ I need the parts! Also, where do I find the clutch master/slave cyls? I am headin out this weekend to a couple yards to hopefully get lucky..

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