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


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Posted

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!

Posted

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.

Guest TurboSedan
Posted

- 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.

Posted

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..

Posted

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..

Guest TurboSedan
Posted

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!

Posted

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..

Posted

grab the memcal just to be safe, a 3.1 can run on it, but not too overly well

Guest TurboSedan
Posted

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.

Posted
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..

Posted

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..

Posted

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.

Guest TurboSedan
Posted

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.

Posted

*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..

Posted

Im cuttin the pedal

 

 

please replace the pedal with the correct one...

Guest TurboSedan
Posted

 

please replace the pedal with the correct one...

 

why?

Posted
Riggin stuff isn't cool.
Yes it is.

 

 

All I need is some bailin' wire and a roll of duct tape!!

 

 

:lol:

Guest TurboSedan
Posted

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 :)

  • 4 weeks later...
Posted

Has anybody done a writeup on how to do the conversion based on their experience?

Posted

icon_mini_search.gif

 

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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