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ATR Old School Tech Parts (7th Injector, TPS, Boost Controller, EMC-10, Oil)

Posted by GNguy
|Date: October 28, 2026
| 0 comments

ATR Old School Tech Parts (7th Injector, TPS, Boost Controller, EMC-10, Oil)

Back in the day, Applied Technologies & Research was one of the companies providing go-fast performan ...

Back in the day, Applied Technologies & Research was one of the companies providing go-fast performance goodies for the 1984-1987 Buick Grand Nationals, Regal T-Types, etc. They made a variety of ...

October 28, 2026
| by GNguy

| 0 comments

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Buick GNX Prototype Differential Cover (video)

Posted by GNguy
|Date: November 10, 2025
| 0 comments

Buick GNX Prototype Differential Cover (video)

Rick Hunt (owner of the GNX XRAY), previous employee at the ASC plant in Livonia, MI (where they assemble ...

Rick Hunt (owner of the GNX XRAY), previous employee at the ASC plant in Livonia, MI (where they assembled the Buick GNX cars), is probably one of the foremost authorities (if not the only one) of the ...

November 10, 2025
| by GNguy

| 0 comments

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What Kind of Rear End Fluid Differential Axle Gear Oil For Buick Grand National?

Posted by GNguy
|Date: December 12, 2022
| 0 comments

What Kind of Rear End Fluid Differential Axle Gear Oil For Buick Grand National?

The majority of Buick Grand National, Regal Turbo T's & T-types, etc., all have 8.5" positraction rear en ...

The majority of Buick Grand National, Regal Turbo T's & T-types, etc., all have 8.5" positraction rear ends in them. [Regal base models may have 7.5" open differential units, meaning non-posi rear end ...

December 12, 2022
| by GNguy

| 0 comments

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All New Brake Lines MC to Calipers From Inline Tube (Conversion Part 6)

Posted by GNguy
|Date: June 24, 2021
| 0 comments

All New Brake Lines MC to Calipers From Inline Tube (Conversion Part 6)

We decided since we were upgrading the brake system with rear disc brakes, we should probably replace the ...

We decided since we were upgrading the brake system with rear disc brakes, we should probably replace the original 3-decade old brake lines too. If you're like us, you probably think "it's ONLY brake ...

June 24, 2021
| by GNguy

| 0 comments

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Install SS Braided Hose on Rear Tee Connection (Conversion Part 5)

Posted by GNguy
|Date: June 23, 2021
| 0 comments

Install SS Braided Hose on Rear Tee Connection (Conversion Part 5)

If you've replaced the stock rubber OEM rubber hoses on your 4 wheel disc calipers with braided line, (li ...

If you've replaced the stock rubber OEM rubber hoses on your 4 wheel disc calipers with braided line, (like we did on the front hoses and rear lines), you should also probably swap out the chassis lin ...

June 23, 2021
| by GNguy

| 0 comments

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Installing SS Braided Hoses on Rear Calipers (Conversion Part 4)

Posted by GNguy
|Date: June 22, 2021
| 0 comments

Installing SS Braided Hoses on Rear Calipers (Conversion Part 4)

OK, after a few days of attending local car shows, we're back at it on the rear disc brake conversion for ...

OK, after a few days of attending local car shows, we're back at it on the rear disc brake conversion for the 1987 Buick Grand National. . While OEM rubber brake hoses attached to calipers work (mostl ...

June 22, 2021
| by GNguy

| 0 comments

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Change Rear End Differential Axle Fluid Gear Oil on Buick Grand National

Posted by GNguy
|Date: June 17, 2021
| 0 comments

Change Rear End Differential Axle Fluid Gear Oil on Buick Grand National

There's 3 or 4 local car shows happening in the next few days that we're attending and covering for this ...

There's 3 or 4 local car shows happening in the next few days that we're attending and covering for this website. That means we're taking a break from the 7-part series about swapping out to rear disc ...

June 17, 2021
| by GNguy

| 0 comments

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Installation of Rear Disc Brakes Setup (Conversion Part 3)

Posted by GNguy
|Date: June 16, 2021
| 0 comments

Installation of Rear Disc Brakes Setup (Conversion Part 3)

So today is the day that we are going to actually install the rear disc brake setup on the 1987 Buick Gra ...

So today is the day that we are going to actually install the rear disc brake setup on the 1987 Buick Grand National! You should note that some kits require a bigger than stock rim (16" plus) to be ab ...

June 16, 2021
| by GNguy

| 0 comments

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Paint Brackets Calipers on Rear Disc Brake Setup (Conversion Part 2)

Posted by GNguy
|Date: June 14, 2021
| 0 comments

Paint Brackets Calipers on Rear Disc Brake Setup (Conversion Part 2)

. While we are waiting for our axles to get turned down to fit the rear disc brakes setup, it's a good ti ...

. While we are waiting for our axles to get turned down to fit the rear disc brakes setup, it's a good time to prep the other stuff for the '87 Buick GN. . This is an ongoing 7-part series: 1st, overv ...

June 14, 2021
| by GNguy

| 0 comments

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Install Rear Disc Brakes on Buick Grand National – Overview (Conversion Part 1)

Posted by GNguy
|Date: June 13, 2021
| 0 comments

Install Rear Disc Brakes on Buick Grand National – Overview (Conversion Part 1)

This is going to be a 7-part series on how to do a rear disc brake swap on a Buick Grand National (but sa ...

This is going to be a 7-part series on how to do a rear disc brake swap on a Buick Grand National (but same as any 1984-1987 Buick Regal): 1st, overview on rear disc brake setup, prepare axles. 2nd, p ...

June 13, 2021
| by GNguy

| 0 comments

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DIY Center Rear End by Adjusting Upper Control Arms & Correctly Setting Pinion Angle How to

Posted by GNguy
|Date: December 07, 2020
| 0 comments

DIY Center Rear End by Adjusting Upper Control Arms & Correctly Setting Pinion Angle How to

If your rear end is not centered with the body of your Turbo Regal, you can fix that by adjusting the upp ...

If your rear end is not centered with the body of your Turbo Regal, you can fix that by adjusting the upper control arms. That means of course, you need adjustable rear upper control arms to accomplis ...

December 07, 2020
| by GNguy

| 0 comments

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G-body Rear End Spherical Housing Bushings

Posted by GNguy
|Date: November 08, 2020
| 0 comments

G-body Rear End Spherical Housing Bushings

Performance oriented G-body Regal vehicles usually benefit from things like stiffening up specific areas ...

Performance oriented G-body Regal vehicles usually benefit from things like stiffening up specific areas (by adding extra braces and supports), and replacing factory components with race-inspired piec ...

November 08, 2020
| by GNguy

| 0 comments

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