1969 Patrol Transmission Swap is Happening!

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Postby seth1001 » Sat Oct 19, 2019 10:31 pm

yitzac1990 wrote:whats the total length? from bellhousing mounting face to rear output flange face?


Unfortunately I wrote all the measurements down on paper instead of my phone so I'm not positive at the moment. I'll be home in about 6 weeks then I'll post all the exact measurements. What I can tell you for sure, that you can see in the next video I'm going to post, is that the new setup is about 7-8 inches longer than the original. The original driveshaft had 16 inches of pipe so the new one would be about 9 inches, plus the U-joints. With a double cardan it'll be right at the limit. We shall see if it works.
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Postby yitzac1990 » Sun Oct 20, 2019 4:20 pm

Good luck! Gonna do any bit of a lift on the patrol?
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Postby seth1001 » Tue Oct 22, 2019 1:37 am

Not planning on it. It has 30's on it right now which gives it an ideal height in my opinion. However, if it ends up being necessary to get the driveshaft to work then...maybe.
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Postby yitzac1990 » Tue Oct 22, 2019 9:38 am

lifting the patrol will make the driveshaft business worse, as it will increase your driveline angle even more. would actually be best to lower it lol

this is why i didn't go with a 5 speed when I did my swap....i knew i would run into rear driveshaft problems with a longer trans.
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Postby seth1001 » Sat Oct 26, 2019 7:07 am

Here's the latest video. https://youtu.be/3Tz1thLtCH0
I think it's got some pretty good stuff in it that'll be of interest to a lot of people who are thinking about similar projects. Here's another teaser photo. Enjoy!

Tranny comparison.jpg
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Postby yitzac1990 » Mon Oct 28, 2019 12:59 pm

i bet you'll need to somehow change that rear output on the TC and use a CV head there adapted to the OEM driveshaft. The good part is, the patrol driveshaft tube is the correct size to go on a standard CV head for 2" .120 wall tubing. good luck!
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Postby seth1001 » Wed Oct 30, 2019 1:36 pm

yitzac1990 wrote:i bet you'll need to somehow change that rear output on the TC and use a CV head there adapted to the OEM driveshaft. The good part is, the patrol driveshaft tube is the correct size to go on a standard CV head for 2" .120 wall tubing. good luck!


Well hopefully something or other will make it work. I could potentially slot out my motor mounts and move the 292 about an inch forward, but that's all. I really don't want to have to go to a V8 as I wager it's going to be a lot more work than I'm expecting. But I'm hoping, by the end of September, to get the thing to a custom drive shaft shop here in Vegas and see what they have to say about it once the new tranny and t/c are in place.
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Postby faux40 » Wed Oct 30, 2019 3:39 pm

Crazy thought -- Go with a full IRS! Would certainly help deal with the short driveshaft issue while increasing your center clearance!
Bumper Rear.jpg
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Postby yitzac1990 » Thu Oct 31, 2019 8:49 am

^^^ that would be a ton more work than a V8 swap lol
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Postby seth1001 » Thu Nov 07, 2019 2:21 pm

faux40 wrote:Crazy thought -- Go with a full IRS! Would certainly help deal with the short driveshaft issue while increasing your center clearance!
Bumper Rear.jpg

What is that crazy contraption? It looks like a miniature or something...
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Postby faux40 » Thu Nov 07, 2019 3:28 pm

seth1001 wrote:
faux40 wrote:Crazy thought -- Go with a full IRS! Would certainly help deal with the short driveshaft issue while increasing your center clearance!
Bumper Rear.jpg

What is that crazy contraption? It looks like a miniature or something...

Or -- that is the world's largest screwdriver!

Actually, I didn't catch that it was a model... I just wanted to show the IRS in a 4x4. It would allow the height between the transfer case and the wheels to be shared over two segments...
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Postby seth1001 » Fri Nov 08, 2019 5:32 am

faux40 wrote:
seth1001 wrote:
faux40 wrote:Crazy thought -- Go with a full IRS! Would certainly help deal with the short driveshaft issue while increasing your center clearance!
Bumper Rear.jpg

What is that crazy contraption? It looks like a miniature or something...

Or -- that is the world's largest screwdriver!

Actually, I didn't catch that it was a model... I just wanted to show the IRS in a 4x4. It would allow the height between the transfer case and the wheels to be shared over two segments...


Haha...well I'll have to jot that down as a possibility sometime down the line when I have some idea of what I'm doing. At this point, an engine swap would be the biggest automotive ordeal I've undertaken. Maybe in the future I'll know enough to attempt an IRS rig of some kind. Thanks for the input.
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