Seats - Nothing's Easy - Defender Source
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  #1  
Old July 13th, 2016, 06:36 PM
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Seats - Nothing's Easy

Those with early trucks who have changed seats with older defender style seat rails -


did you go from this:




to this:




If so, talk to me goose. Did you just drill new holes, tap threads, bolt size, what? For even more fun, this older style rail is screwed into captive nuts on the underside of the seatbox.

So much for a five minute job....

Thanks!
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  #2  
Old July 13th, 2016, 07:45 PM
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heh - replying to my own thread

one option is to re-use the older seat base, similar to this AB video (sorry Zack)




i don't know how to embed that thing
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Old July 13th, 2016, 07:57 PM
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The captives are in a simple bracket held by a rivet. Easily drilled out and dropped.
I like the military way of fixing the seats to the seat box. Use a large washer and a bolt about 3/8 longer than needed to come up through the hole from underneath. Use another washer and nut on the top. This will leave a set of four studs to set the seat onto and then use nylocks to fasten the seats. This set up places the seat rails up slightly off the seat box which helps greatly removing the battery box and tool box lids. If you have cursed the original design trying to get these lids out you know what I mean.
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Old July 13th, 2016, 08:45 PM
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Thanks Doug - that's a really good idea
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Old July 13th, 2016, 11:47 PM
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Riv nuts
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Old July 14th, 2016, 06:52 AM
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Quote:
Originally Posted by BlackField View Post
Riv nuts
Hadn't thought of that - thanks
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Old July 14th, 2016, 08:13 AM
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I was gonna say rivnut too, but I wouldn't trust them in an accident
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Old July 14th, 2016, 08:17 AM
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I haven't tried a riv-nut just because you can't add a backer so its only a surface mount in thin aluminum. Lean back too much in your seat trying to adjust a kid in their car seat etc...and pull out a front riv-nut
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Old July 14th, 2016, 08:41 AM
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The thread strength on a rivnut for this application would be in the thousands of pounds range. I don't think the rivnut itself will fail. But I can agree that if you do not size the hole (or loosely fix the rivnut) it will allow the material around it to deform and fail pretty easily.
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Old July 14th, 2016, 01:13 PM
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note to thread:

the new style bolt size is M8 x 25 (FS108251L, superceded by FS108257L), which is also threaded into a riveted captive nut in the workshop manual

OLD STYLE


NEW STYLE



checking to see if i have any M8s and washers lying around...
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  #11  
Old July 14th, 2016, 08:33 PM
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so drilling it is, tried to take an easy path of reusing the existing seat rails - no worky
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Old July 15th, 2016, 01:11 PM
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i am not alone

http://www.defendersource.com/forum/...ats-69270.html

http://www.defendersource.com/forum/...uts-31959.html
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  #13  
Old July 15th, 2016, 09:48 PM
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did a quick install using John's method of using existing holes

used the inside ones closest to the console since i don't have a center seat

worked fine except, as Doug said, the seat box covers are now a huge PITA

this is not over
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