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-   -   How to Install Boxster Seats in an 74 911 (using original sliders) (http://forums.pelicanparts.com/porsche-911-technical-forum/451707-how-install-boxster-seats-74-911-using-original-sliders.html)

PorschePilot 01-16-2009 06:10 PM

How to Install Boxster Seats in an 74 911 (using original sliders)
 
There has been some discussion about installing Boxster/996 seats in an earlier car. The issue is that the seat sits higher if you use the Boxster/996 sliders.

I just installed seats from a 2000 Boxster in my 74 911 and I used the original 74 sliders, so they are at the same height. I got a really great deal on the black leather Boxster seats, so it was worth taking the time to figure out how to mount them.

The Boxster seats had manual height adjustment (pneumatic cylinder) and electric seat back adjustment. Yes, with the Boxster sliders the seats sat 1.5 inchs higher stock. It was noticeable and felt too high.

Here is how I did the install:

After removing the original seats, I ran a power wire from under the dash with an inline fuse. I ran a ground wire to one of the seat mount bolt.

Now for the seats.

Remove the Boxster sliders.

http://forums.pelicanparts.com/uploa...1232159331.jpg


http://forums.pelicanparts.com/uploa...1232159354.jpg

Remove the pneumatic height cylinder.

http://forums.pelicanparts.com/uploa...1232158879.jpg

There will be the 4 pads that the sliders were bolted to. The front pads will have a lip that needs to be cut off. I used a high speed cut off wheel.

http://forums.pelicanparts.com/uploa...1232161375.jpg

http://forums.pelicanparts.com/uploa...1232159397.jpg

I took the sliders off the original 74 seats. The pads on the Boxster seats will have holes in them. I use the front holes on the original sliders and lined them up with the very front holes on the front pads on the Boxster seats. I used new allen bolts and lock nuts to mount the sliders onto the pads. You will have to drill new holes in the slider to line up with the hole on the pad.

http://forums.pelicanparts.com/uploa...1232161168.jpg

With the original sliders installed the seats will line up with the original holes. The front bolts were easy to get to, the back ones were tight on room. I used allen bolts in the baqck and had to cut the allen wrench down to make it fit.

Here is a pictures of the seat installed.

http://forums.pelicanparts.com/uploa...1232161664.jpg


http://forums.pelicanparts.com/uploa...1232161716.jpg

Wayne 962 01-16-2009 06:23 PM

Neat writeup!

-Wayne

mb911 01-16-2009 06:52 PM

looks very nice

wowzer911 01-16-2009 07:57 PM

cool, nice seats, are they comfy?
Not crazy aout that horn pad though.

Porsche-O-Phile 01-16-2009 10:59 PM

Cool idea - gotta' admit they look a little out of place (too "futuristic") in a '74, but they're undoubtedly comfortable. Nice job overall!

VinceQN 01-17-2009 02:28 AM

Do you know if you can hook up the original heating element?

PorschePilot 01-17-2009 10:54 AM

Thanks for the feed back. The seats are very comfortable, especially compared to the old ones, which were 35 years old. I use to have piles of crumbled foam under the old seats. I wanted a newer seat so I wouldn't have to worry about them deteriorating. I have to admit that I got the all black leather Boxster seats for $200 for the pair. I found them listed in "The Mart" section on the PCA website, which was the first time I looked there, my first source for used parts of course is the Pelican classifieds.

PorschePilot 01-17-2009 11:06 AM

These seats didn't have a heating element. But since there is a 12 line to the seats, hooking up the heater shouldn't be a problem. The heater would draw more current, so a bigger in-line fuse may be required. I put in a 5 amp in-line fuse, which is fine for powering the seat back motors.

ShakinJoe 01-18-2009 06:48 PM

I think they look great. Nice work.

slow&rusty 01-18-2009 06:54 PM

Awesome work!! Nothing like actually being comfortable while driving...what a concept! I think the seats look perfect in your '74, not out of place at all. I see you are a Ford guy too.

Yasin

RocketWrench 03-27-2015 07:41 AM

These are my current seats:

http://forums.pelicanparts.com/uploa...1427470738.jpg

The are in great condition, but they are quite 'flat' and don't have any hugging quality in the corners.

I was thinking about replacing them with these:

http://forums.pelicanparts.com/uploa...1427470812.jpg

Ill be keeping the originals, but here is the point that the purists here are free to abuse me....:p

marko 04-02-2015 10:25 AM

PorschePilot,
What type of seat adjustments do you now have on the seats? Thanks.

Dpmulvan 04-02-2015 11:14 AM

I have a bunch of 911 seat sliders laying around if anyone else is going this route.Nice job on the seats!!

bobt4945 04-02-2015 11:21 AM

I think they look great! nice job. Thanks for the write up, that's why I like this site!!!

PorschePilot 04-02-2015 11:57 AM

The seat have the manual fore and aft adjustments and use the electric powered backrest, which is really nice for changes on long trips.

pc100porsche 04-02-2015 03:34 PM

Great job !


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