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Getrag 284 Swap Build Thread
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outonthetiles
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2000 Chevrolet Impala
1990 Volvo 240
2000 Buick Regal


PostPosted: Sat Jun 30, 2012 1:37 pm    Post subject:  Getrag 284 Swap Build Thread Reply with quote

As of 3/14/2015 I will no longer be updating this thread, although the build continues. I will be posting updates here: http://www.grandprixforums.net.....eed+impala


I've mentioned a few times that I'm undertaking a Getrag 284 swap into my 2000 Impala LS. For those who don't know what a Getrag 284 is, it's a 5 speed manual transmission that was available in 1st gen W-Bodies with the 3.4 DOHC motor between '91 and '93. As far as I know, I will be the first one performing this swap into a 7th gen Impala, although I'm not the first one to swap it into a 2nd gen W-Body.

I've done a lot of research on this, and I've been getting all of the parts together since October 2011. Finally, last week I felt prepared enough and started to tear apart the car.

I picked up a 92 Lumina Z34 with a blown motor from a member of W-Body.com and trailered it back home from PA.


The car to be going under the knife:


The trans fits, but it is not a direct bolt in. I fabricated a clutch pedal bracket to mount one in the LS. To do this, the entire dash has to come apart down to the mag beam. I've done this already with a spare mag beam I pulled from the junkyard, so that's ready to be swapped in. I still have to mount the clutch master cylinder to the firewall plate. I also have to lengthen the CMC rod about 1 3/4 inch as the distance from the pedal to the firewall is longer on 2nd gens. I plan on ditching the accumulator and running a braided stainless line between the CMC and CSC.

I also have to repair the 284 trans mount, as they are no longer manufactured and mine is broken. I have not been able to source one, so I've ordered some polyeurothane and plan to repair mine with that.

I need to fabricate an intermediate shaft to engine block bracket, that shouldn't be hard.

I'm going to have to have to swap to a steel subframe from a Grand Prix/ Regal, as our aluminum subframe does not have the provisions for the 284 trans mount.

I have a oil filter adapter from an '88 Buick Reatta that I need to modify for clearance with the power steering pump and axle. To run this, I am also switching to the aluminum oil pan and newer style motor mount from an 06+ Grand Prix.

The flywheel is from a L36 Camaro, milled down to 0.84". I've ordered a SPEC Stage 2+ clutch.

The shifter should bolt right in, and I will have to drill a hole in the firewall for the shifter cables. I'm removing the foot parking brake pedal and installing a j-body hand e-brake lever. I'll have to modify the center console.

I think I'm going to need to modify the ignition switch somehow so I can get my key out, as I will be tricking the computer into thinking the car is in neutral at all times.

Kevin @ Cartuning.ca will be doing my tune.



I'm also doing many other mods to this car at the same time.

I will be attempting to swap in control arms from an H-body as they are cast aluminum and the front bushing is horizontal instead of our silly vertical design.

I'm switching from f-body front calipers to c5 Corvette front calipers. I am also installing stainless steel brake lines and rear calipers from an Olds Alero as they are cast aluminum and therefor lighter.

I'm removing the rest of my air conditioning, as it hasn't worked for years and I've been running a bypass pulley.

I have SD headers ready to be installed.

I'm changing out the stock steel front bumper support to an aluminum one from an Rendezvous.

I've also got some other things planned in the future, but I've listed my main goals for now. If the funds are available, next year I'll be top swapping. I already have everything for this except for the necessary gaskets. I'd also like to rebuild the SC I have before it goes on. I'm holding off this year because I'd like to install a XP cam at the same time and upgrade the valvetrain.

Hardware from the Z:


Clutch pedal bracket fabricated:


Preparing to pull the engine:


Suspension removed:


Almost out:


Obligatory standing in engine bay shot:


Subframe and brake booster out:


Engine on stand, SD headers mocked up:


Interior stripped down, but not stripped down as much as it will be:




Damn, I have a lot of work to do.



My current mods are: (updated 5-24-14)

Suspension/Brakes/Chassis
-DNA Lowering Springs
-GMPP Front & Rear Sways
-Poly Sway Bushings
-Boxed Trailing Arms
-Poly Front LCA Bushings
-C5 Corvette Front Calipers
-Braided Stainless Brake Lines
-Olds Alero Rear Calipers
-Hand E-Brake
-EBC Redstuff Pads
-Centric Powerslot Cryo Treated Rotors
-Stitch Welded Strut towers
-Poly engine/trans mounts
-Modified Front Strut Brace
-Rear Strut Brace
-Anti-Pogo Washers

Engine
-L36 Bottom End
-XP Cam
-Crow Cams 105# Valve Springs
-Modified Retainers
-JMB Fenderwell Intake w/ K&N Cone
-Aluminum Oil Pan
-GenV Eaton M90 Supercharger
-Modular Pulley System, 3.5" pulley
-Remote Oil Filter
-00+ Northstar Throttle Body
-H-Body Coil Pack Bracket
-Custom Tune
-Powdercoated/Ceracoated Engine Parts

Exhaust
-'04 SS Factory Dual Exhaust
-Speed Daddy Headers

Cooling
-ZZP Oversized Aluminum Radiator
-9C1 Cooling Fans
-180* T-Stat
-9C1 Power Steering Cooler

Transmission
-Getrag 284
-Spec Stage 3+ Clutch
-EP LSD
-Braided Stainless Clutch Line

Exterior
-Partial Debadge
-SS Spoiler
-Painted Plate Frames
-SLP Grille
-Keyless Passenger Front Door Handle

Lighting
-Yellow Fog Bulbs
-Yellow Hi-Beams
-Silverstar Ultra Low Beams
-Quad Headlight Mod
-ALC Disable Harness
-Surv Switch Mod

Interior
-Head Up Display Retrofit
-SS "Carbon Fiber" Trim
-Monte SS Limited Edition 6 Gauge Cluster
-Triple Gauge Pod A Pillar
-Aeroforce Interceptor
-Glowshift Oil Pressure Gauge
-Glowshift Fuel Pressure Gauge
-NGK AFX Wideband AFM
-Custom Shift Boot
-SLP Camaro Shift Knob
-Head Up Display Retrofit

Audio
-Pioneer 6x9's

Electronics
-ZZP S1 Voltage Booster
-Caspers Fuel Pump Rewire
-Hardwired Beltronics 955
-Alternator Rewire

Misc
-A/C Delete
-Aztec Bumper Support
-EGR Delete
-Air Pump Delete


Future Mods:
-SS/ LS Sport Bumper Lip
-Puddle Lights
-Homemade Coilovers w/Koni Inserts
-Larger Rear Sway
-18" Wheels
-The "Big Three"
-Quad Tails
-Front Plate Filler Molded Into Bumper
-Meziere Electric Water Pump
-H-Body LCA's

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2000 Impala LS: Getrag 284 Swapped


Last edited by outonthetiles on Sat Mar 14, 2015 11:46 am; edited 10 times in total
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jmakinen
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PostPosted: Sat Jun 30, 2012 3:19 pm    Post subject:   Reply with quote

Impressive build! You've taken most everything that I've wanted to do to improve my Impala. By the time you're done, it should be pretty sweet, but that's a long road ahead. Definitely keep up with the project, and don't turn this into a dead thread like I've seen many times before. Keep progressing!

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outonthetiles
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2000 Chevrolet Impala
1990 Volvo 240
2000 Buick Regal


PostPosted: Sat Jun 30, 2012 3:30 pm    Post subject:   Reply with quote

Trust me, this will not be a dead thread. I'm well invested in this project and very motivated.

I have my reasons for sticking with this platform.

I grabbed some Bonnie control arms today. Here's a comparison:


I think the balljoints are slightly farther forward on the Bonnie ones, so I'll have to move the rear mount back slightly and fabricate a front mount. Shouldn't be difficult, as I'm swapping to a steel subframe, and I'll be able to weld to that easier.

On Tuesday, I'll be continuing the project. On Tues/Weds I plan on mounting the new control arms to the subframe, getting the motor and trans mocked up on the subframe, fabricate the intermediate shaft bracket, modify the OFA, mount the shifter, run shifter cables, install hand e-brake, and mount the CMC to the firewall plate.

We'll see how much I actually get done though..

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PostPosted: Sat Jun 30, 2012 5:18 pm    Post subject:   Reply with quote

Definitely interested in following along. This is going to be an awesome project. I've always wanted a 5 speed in the Imp, except on those heavy traffic days. Envy, man, I'm jealous!


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PostPosted: Sat Jun 30, 2012 6:12 pm    Post subject:   Reply with quote

What are your plans for the axles? Those seem to always be the undoing of manual transmission swaps on W-bodies.

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outonthetiles
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1990 Volvo 240
2000 Buick Regal


PostPosted: Sat Jun 30, 2012 6:28 pm    Post subject:   Reply with quote

I'm going to use stock driver's side axles on both sides. Equal length axles should reduce the torque steer effect.

This is one of the reasons I went with the 284 over an F40, as that would require custom axles and mounts. A much more difficult swap, and they don't hold up as well from what I've heard.

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PostPosted: Sat Jun 30, 2012 8:03 pm    Post subject:   Reply with quote

284 axles? I was under the impression that 4t60/65 axles weren't compatible with the 284.

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PostPosted: Sat Jun 30, 2012 8:14 pm    Post subject:   Reply with quote

Nope. From my research driver side 2nd gen 4t65e axles will work for both sides, so I only bought one. I'll use the existing one from the other.

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PostPosted: Sat Jun 30, 2012 8:29 pm    Post subject:   Reply with quote

I'm confused. Above, you say you're using driver's side axles and now you say passenger side axles. Are you certain that, when mounted, the 284 will be perfectly positioned so that you can use two equal length axles?

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PostPosted: Sat Jun 30, 2012 8:33 pm    Post subject:   Reply with quote

Sorry. Driver's side. I'll edit my post, I mistyped that.

Nope, I'm not sure. It's one of the many things I'm going to figure out along the way, but everything I've read so far indicates that the driver's side axles will work.

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PostPosted: Sat Jun 30, 2012 8:35 pm    Post subject:   Reply with quote

Good luck, It is great to see such a large under taking again on this site. It has been a long time! make sure to include many pics of the build!

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outonthetiles
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1990 Volvo 240
2000 Buick Regal


PostPosted: Sat Jun 30, 2012 8:45 pm    Post subject:   Reply with quote

Yeah, I've been taking lots of pics. They're going to help me when its time to put everything back together, and I want a good record of this swap.

Seems most of the people who would do this type of thing have moved on to other platforms. I don't blame them. These cars lack a lot to be desired, which leaves a lot of room for improvement, which I like. I like things that are built, not bought. If I were starting off with a really good car, there wouldn't be as much to improve, and I would get bored with it.

I have a (stupid) love for these cars. I guess my whole family does. My dad has an '09 LT, my sister has an '02 LS, my grandfather had an '02 LS before he passed, my first car was an '00 LS, and I currently own a different '00 LS and a '02 LS Sport. I'm only 22 and I've had 5 W-Bodies in total, and they've been good to me. I have a wealth of useless information about this platform both in my head and saved in word documents on my computer. I even have a press release kit from '99 when they were introducing these cars, complete with "jumping deer" lapel pin.

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PostPosted: Sat Jun 30, 2012 9:53 pm    Post subject:   Reply with quote

Nice work I have been waiting for this thread! Hopefully you dont get all the bs flame/troll responses like mine did Laughing

Nice work though cant wait to see it complete. How did the pull go?

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PostPosted: Sat Jun 30, 2012 9:54 pm    Post subject:   Reply with quote

VTSS wrote:
Nice work I have been waiting for this thread! Hopefully you dont get all the bs flame/troll responses like mine did Laughing


Why the hell would anyone do a 5 speed swap in an Impala? Laughing

To be clear, I'm just being an ass. Wink

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PostPosted: Sat Jun 30, 2012 9:58 pm    Post subject:   Reply with quote

IffyG wrote:
VTSS wrote:
Nice work I have been waiting for this thread! Hopefully you dont get all the bs flame/troll responses like mine did Laughing


Why the hell would anyone do a 5 speed swap in an Impala? Laughing

To be clear, I'm just being an ass. Wink


Your responses were fine, the ones at the end of the thread are just kinda pointless.

I would do a 5 speed swap if I still had two cars and time to do it Very Happy
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