Its not as easy in a 4G due to the un-equal heights of the rails, the Inner rail sits 1.5" higher than the outer rail, making it a pig to fit aftermarket seats!
The bolt pattern width on 4G Seats is 13", on Recaros is 16" (the distance between opposite bolt holes), and on top of that, the Recaro seats have a flat base, 4G seats compensate the height in the rails already with an un-even base.
Heres a quick guide to get them to fit, with pictures!
Id first like to say, that this is how "i" did it, things in this guide might not relate to resources you have and therefore you may need to substitute certain parts.
The seats im fitting are from a 90' Toyota Hilux SSR-G with Factory optional recaro interior, they are pretty old-skool, and known as "Fish Net Recaros"
Here is an overall look of the rail ive made.
The inner rail is to the Left, Outer rail to the right (This is the passenger seat up-side down)
The outer rail can bolt directly to the seat with no issues, it just needs 1 hole drilled, Theres 2 holes on the back section of the rail, use the inner one to bolt it directly to the seat, this hole already exists.
To find the position of the next hole, i got a screw and rested it on the bolt hole in the seat, i then got the rail (Loosly bolted to the other end) and scraped it on the screw, this got me the position to drill the next hole.
The hole i drilled was located here (I forgot to take a picture after i drilled the hole for location
)
Its a bit of a pig to bolt down aswell, if your using the allen bolts that come with the recaro seats, its a bit easier, otherwise its a 10mm bolt. i had to use an allen key through the bolt hole on the runner.
The other side gets a bit tricky, Not only have to got to find a way to position the rail 1.5" from the seat base, but you have also got to find a way to get the rail 3" inwards to the seat!
Now, when i got my seats, they came with the rails from the hilux (Again, as mentioned above, you may have to substitute parts ive used for something else!), Lukily for me, the hilux rails have a section that raises/ spaces the seat, thats exactly 1.5" tall, only problem is, its rivited to the seat runner.
Grinder and 1 minute later, i managed to free it.
I used some paint to locate a hole i drilled on the spacer and drilled a hole.
i then started to work on getting the rail to sit 3" Inwards, i used some 3mm thick L Bar i had lying around, cut it in half, drilled some holes.
And overall look of the outer rail...
Underside.
And there you go! Sorry its not an In-Depth how to, but i just assumed not everone is going to fit Recaro seats from a Hilux, therefore not using parts of the Hilux rail.
Enjoy!
