TMI Sport BENCH Seat Build - 65 Chevelle - Chevelle Tech
Interiors Upholstery and soft trim

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post #1 of 34 (permalink) Old Nov 2nd, 17, 3:26 PM Thread Starter
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TMI Sport BENCH Seat Build - 65 Chevelle

A customer of mine has purchased a TMI Sport Bench seat kit for his 65 chevelle.

I can't seem to locate any kind of install guide from TMI (TMI if you are reading this and DO have instructions for this, i'm sure i'm not the only one who would love to have something... Hint hint hint) So thought i'd make a build thread with photos of the process and my own take on instructions...

I'm looking at the buns, and the lower cushion/cover install appears pretty straight forward, though pretty different from a standard bench seat cover due to the bolster listings...

Now, the UPPER cushions are a whole other ball game- I'm not even sure how i will go about this yet- mainly due to how to get the cover attached to the listings, and then pull it rightside out w/o ripping it.
They have a single zipper that goes halfway up the center of the back side of the cushion... but that leaves some real tight corners to have to pull around.
Maybe it will become clear once i get the buns on, and the bolster listings attached to the covers.

Anyway- Here is the before photo, more to follow...
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Last edited by RAMBO; Nov 2nd, 17 at 4:45 PM.
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post #2 of 34 (permalink) Old Nov 2nd, 17, 3:43 PM
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Subscribed, Im looking at there sport bucket kit.
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post #3 of 34 (permalink) Old Nov 3rd, 17, 7:24 AM
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Watching with interest.....

Got a customer thinking about doing this with a '67 bench seat.

When I works, I works hard.
When I sits, I sits loose.
When I thinks, I falls asleep.

The '68 L79 Malibu survivor as found in Nov. 2014, in my profile pic.
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post #4 of 34 (permalink) Old Nov 3rd, 17, 8:35 AM
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

I've had this kit (1966)stored up in the rafters of my shop for two years,I'm not an upholstery guy but thought I'd tackle it myself.I contacted TMI and asked for some kind of info or special procedures on the install,they told me it's no different than redoing a bench seat using the conventional methods? I'm glad this post came up and hopefully it will guide me through the procedure.
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post #5 of 34 (permalink) Old Nov 6th, 17, 12:31 PM Thread Starter
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

No real progress of interest yet. Got the seat torn down over the weekend- insanely nice shape. This is a low mile always garaged car and it shows.

I've pulled the TMI foams out of the boxes and test fitted to the cushions and i can clearly see now exactly the issue that some other folks here reported... The upper cushions are made in such a way that the foam rises above the top of the seat springs/frame about 4" but it does not extend all the way to the rear edge, which would create a big void under the top of cover... I'm thinking i will resolve it by gluing in a thick strip of extra firm foam there. Hopefully it will be an easy fix.

More to come this evening when i get back to it...
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post #6 of 34 (permalink) Old Nov 6th, 17, 5:16 PM
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

So the foam is thicker than stock on the seat? I have seen reports of sitting higher with the sport foam & covers. Im looking at them for my buckets.
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post #7 of 34 (permalink) Old Nov 6th, 17, 5:43 PM
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Rambo, can you post a pic of the TMI sport backrest foam buns?
THX..

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post #8 of 34 (permalink) Old Nov 6th, 17, 5:49 PM Thread Starter
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Quote:
Originally Posted by 1967 chevelle malibu View Post
So the foam is thicker than stock on the seat? I have seen reports of sitting higher with the sport foam & covers. Im looking at them for my buckets.
The foam is stiffer and slightly thicker than OEM for the buckets and for the bench. You will definitely sit up higher... this is pretty well known, myself and others have posted about it for the buckets in the past. I think if you plan on running a 14" steering wheel and are not too much taller than 6' it might be livable, but most wind up at least adding seat track extenders to allow the bucket seat to move back farther for some additional room due to the stiff/thick foam.

I'm actually referring to the overall fit of the bench seat upper cushion bun itself though- Bench seats did not have molded buns like buckets did- rather a thick cotton pad that wrapped around the top of the spring assembly.

For this sport bench, they have molded buns to give them the shape and support. the upper cushion the bun is several inches taller than the original frame where it goes over the top of the springs- however for some reason, they did not make the bun thick enough at the top where it extends over the top of the spring to completely fill the cover... instead its a couple inches short and leaves a void that will need to be filled.

I'll get some pics of that area tonight.
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post #9 of 34 (permalink) Old Nov 6th, 17, 5:50 PM Thread Starter
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Quote:
Originally Posted by Cal Malibu View Post
Rambo, can you post a pic of the TMI sport backrest foam buns?
THX..
Yup- i'll get them up later tonight when i get back to it.

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post #10 of 34 (permalink) Old Nov 6th, 17, 6:33 PM
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Quote:
Originally Posted by RAMBO View Post
... however for some reason, they did not make the bun thick enough at the top where it extends over the top of the spring to completely fill the cover... instead its a couple inches short and leaves a void that will need to be filled.

I'll get some pics of that area tonight.
You should send your pics and analysis to TMI, also. They need to fix their defect.
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post #11 of 34 (permalink) Old Nov 6th, 17, 7:40 PM Thread Starter
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Quote:
Originally Posted by davewho1 View Post
You should send your pics and analysis to TMI, also. They need to fix their defect.
Will do once I see the whole thing through to the end.
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post #12 of 34 (permalink) Old Nov 7th, 17, 2:29 AM Thread Starter
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Upper cushion Bun details & cover details
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post #13 of 34 (permalink) Old Nov 7th, 17, 2:31 AM Thread Starter
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

Lower cushion bun details
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post #14 of 34 (permalink) Old Nov 7th, 17, 2:48 AM Thread Starter
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

In the photos of the top cushion- you can see the gap in foam at the top- In my mind, it should extend all the way to the back edge of the frame to square off the top of the cushion. It does make the bun taller than original.

I measured the width of the seat cover at the top edge to see if it was intended for the springs to be compressed eliminating the gap- but the cover is wider than the uncompressed spring+ bun is and will use all of that space- so it needs to be filled with something.

Another TC member went through this exact issue 2 years ago, I e-mailed him and he sent me some photos of his solution. His seat was a 67 or 68 and had a removable hard fiberboard backer that wrapped over the top rear of the frame- he moved that up about 3" and screwed it to the metal frame and then attached a trimmed 2x2 to it to reinforce and fill in the gap.

The seat i'm working on has no fiberboard there, just jute glued on...
as mentioned above, i think some stiff foam glued to the bun in that spot should work out fine to fill the gap- But Dave's idea of extending the fixed rear edge of the frame upward is also not a bad idea. Guess we'll see when i start putting it together.

Pics below from Dave's seat AFTER he modified the rear frame height:
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post #15 of 34 (permalink) Old Nov 7th, 17, 7:49 AM
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Re: TMI Sport BENCH Seat Build - 65 Chevelle

The 5th pic in your post #12 makes me wonder "what were they thinking?".....
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When I sits, I sits loose.
When I thinks, I falls asleep.

The '68 L79 Malibu survivor as found in Nov. 2014, in my profile pic.
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