B210 van and B210 coupe both used a tailgate. The Coupe tail gate is more commonly called the hatch or liftgate. Gas struts keep the boot (tailgate) open once it is lifted to the up position.
Coupe Tail Gate
DX came with hatch struts, to keep the hatch open when lifted. GL & GX hatch struts came with switches to turn the light on. When new, the struts will support the weight of the hatchback. As they age, at some point they will no longer keep the hatch up.
Some Australian-sold coupes came with a metal stay for the left hand side, a bar that holds the hatch in the upright position. The struts are more to assist in lifting it. Reportedly that's how they were sold by the dealer.
90100-H5500 ASSY-PANEL,TAIL GATE COUPE 90810-H5501 WEATHERSTRIP-tail gate <> 90810-H5500
TAIL GATE TRIMMING (underside of hatch) 90900-H5500 FINISHER-tail gate (Black) 90900-H5501 FINISHER-tail gate (Brown) 01553-00211 CLIP-trim (Black) (11) 01553-00221 CLIP-trim (Brown) (11)
Hatch Struts
Tail Gate Stay 90210-H5550 BALANCER KIT-tail gate (R.H.) K-GX,K-GL,(op.)K-DX, USA ALL 90211-H5550 BALANCER KIT-tail gate (L.H.) K-GX,K-GL,(op.)K-DX, USA ALL 90210-H5500 BALANCER ASS'Y-tail gate (R.H.) K-DX $175 USD 90211-H5500 BALANCER ASS'Y-tail gate (L.H.) K-DX $175 USD
Aftermarket * SACHS Stabilus SG225004 $17 USD Rockauto, $21 USD O'Reilly CONNECTION Ball Socket End Extended Length 24" Compressed Length 15" Lower Mount Type: Ball Socket Upper Mount Type: Ball Socket Travel Length (In): 8.504 Inch * AMS AUTOMOTIVE 4729 Hatch Lift Extended Length (inches) 23.88 Compressed Length (inches) 14.81 Stroke (inches) 9.07 Pounds of Force 46 Shaft Diameter (mm) 8 Body Diameter (mm) 22 Shaft Connection U-Blade Body Connection U-Blade
Sources
* Nissan * Local auto parts stores * wreckers * Gas Strut Recharge, Launceston TAS
Swaps can also be done for example Falcon XD front bonnet struts. Because the upper tailgate is light, the trick to finding the right 'weight' at the wreckers - find a bonnet that just worked its way down slowly under its own weight. Sometimes only one side is needed if the alternative strut is too powerful. At the wreckers there are lots of cars, lots of bonnets. Just measure up the open and closed lengths and go a'lookin.