My kid wanted a Jeep, she's getting a 77 FJ40 LS Swap instead

JKIII FJ40 · 2026-08-23T17:29:22-0600

Went to a car show with both 40’s, no trophies but a great day with a bunch of the local guys. It was a sight to see having so many LCs in one place. Black and white photos are courtesy of Sergey, super cool!

JKIII FJ40 · 2026-08-23T17:39:37-0600

Had a small ATF leak from the A/A Adapter, must be something with the casting that could be a small fissure allowing oil to pass by the bolt threads. I removed the bolt and cleaned the threads and used ATF sealant on the bolt and put it back in. Only time will tell after its run for a while and up to temp. I checked the transfer case too, no ATF passing through so thats good news.
I changed the battery while I was at it, the H6 fit the tray and was about another 100CCA too compared to the 5 year old 24F battery.

JKIII FJ40 · 2026-08-23T17:46:20-0600

Hold my beer, I'm gonna try something.....When I built the truck I used a set of BMW seats, I pulled them after installing the center console. The drivers seat was rubbing against the console, the passenger seat was a little too tall and the seat didn't allow anyone the ability to get in the back. I tore apart the BMW seat and a stock seat too, the seat base was the easy part. It took a little mental math to make the upper work. I happy to report that the outcome was a success.

Gotta40 · 2026-08-24T05:44:47-0600

that turned out pretty nice. you should do a writeup on the conversion.

JKIII FJ40 · 2026-08-24T06:39:25-0600

Thanks, I can probably take some more pics but wanted to wait till I ran it for a while just to ensure it actually works.

JohnnyC · 2026-08-24T07:53:40-0600

JKIII FJ40 said:
Thanks, I can probably take some more pics but wanted to wait till I ran it for a while just to ensure it actually works.

Ahhhh … put it to the test !!! I know who needs to drive it

JKIII FJ40 · 2026-08-24T07:58:11-0600

There’s my testing and then there is Toyota lifetime testing (aka JohnnyC) .

JohnnyC · 2026-08-24T08:33:13-0600

I was thinking more like the younger female destructive testing technician that’s living in your house lol

JKIII FJ40 · 2026-08-24T08:47:41-0600

JohnnyC said:
I was thinking more like the younger female destructive testing technician that’s living in your house lol

Oh gawd, yeah you’re right. I should upload my clip and subsequent heart failure

JKIII FJ40 · 2026-08-24T08:53:01-0600

So this is the reference JohnnyC was talking about. Kid took her friend for a ride, didn’t notice the parking brake was on and then parked it inside and then sent me the clip. Got home in about 5 min, total heart failure.
Had no clue the brake was on, just it felt sluggish. And yes, the garage doors were closed.