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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 6:35 am
by Copper204
So had a little time here on Saturday. So decided to get the transmission and engine mated together.
Here is the rest of the transmission mount plate and required flex plate.
So since this is using a Gen IV LY6 and a 4L60E from say a Gen 2. I have to use a flex plate from a 4L80E transmission. So this one was bought for a 2003 Suburban with 6.0L.

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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 6:38 am
by Copper204
All mounted. Ready to mate up to the transmission .
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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 6:45 am
by Copper204
Time to left the engine and get it together.

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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 6:52 am
by Copper204
Vinny helped me drop in the whole package. Went into the chassis with zero issues. Will need to adjust towards passenger side. But need it right now for cab placement.

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Bolt in Motech motor mount setup
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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 6:55 am
by Copper204
So this is the exhaust manifolds that came with engine. Definitely not going to work for this application.
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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 7:00 am
by Copper204
So I decided to go with a set of manifolds from a 2001 Chevy Tahoe with 4.8L. These should work perfectly for what I am expecting out of truck.

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I really like the fact they come with warranty and heat shields....

Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 7:03 am
by Copper204
I think they look perfect on there and will work perfectly. Please note. Engine is strong to drivers side. I still need to shove engine to passenger side.

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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 7:09 am
by sonoraed
Hal, because all aftermarket AC units use 5/8" heater hose, would suggest remove oem heater hose nipples(while easy to get to) and tap out water pump to NPT threads,then you can screwin 5/8" SS nipples, small thing that saves some grief when time comes, ask me how I know!

Re: 1971 J2000 build on Jeep JKU Frame

Posted: Sun Apr 04, 2021 7:13 am
by Copper204
Little shot of transmission plate. Due to design of JKU cross member. This plate can move forward and side ways about 4 inches. It looks like this one will be locked in about here. But a little more passenger side.

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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 7:42 pm
by Copper204
Sunday oh yeah Funday... ERIK is in the shop building his JKU. So figured I would swing in and separate the cab from the old original frame.

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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 7:48 pm
by Copper204
And the cab come off.

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And all separated. I love my fork lift and most definitely love the lift. I also love working in tranny land... Robbie I am sure hates me in his bay....

Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 7:53 pm
by Copper204
And the cab sits in the air waiting for settling down on JKU frame.

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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 8:17 pm
by Copper204
Time to give it a go.
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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 8:25 pm
by Copper204
And the cab is down. Not very happy with engine placement. I want it about 2 inches forward. So ordering a set of adjustable Dirty Dingo LS mounts. I will be combining them with the Motech mounts. If do not get how I want it. Will just suck it up and make my own. Got a slight rubbing problem....lol

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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 8:28 pm
by Copper204
Engine placement dictates cab placement.
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Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 8:44 pm
by Stuka
Will you have to change out the trans mount also? Looks like its in the most forward position now, unless maybe it can be flipped 180 or something?

Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 8:55 pm
by Copper204
Well on a side note. I have decided the fleet side bed will not work for what I want. So will be contracting with a specialty builder. He will build me a custom box bed. And I will be using Genright JKU Fenders front and rear. Probably have them custom made for my application. I will want to see this truck on the trail. But the departure angle on rear would be incompatible with the rock Krawling I do.

Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 8:57 pm
by Copper204
Yes flipped. It allows more forward movement. Yes did not get a picture of JKU transmission bracket flipped. Will update after I get cab back off.

Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 8:59 pm
by Copper204
Probably gonna change it all up.. not first time failure . Will make it work....lol

With a hot knife. All things are possible...

Re: 1971 J2000 build on Jeep JKU Frame

Posted: Mon Apr 05, 2021 9:42 pm
by Copper204
So these are the Dirty Dingo engine mounts. Will be playing with them this weekend hopefully.

Should be able to get some massive movement. UPS says I should have them Thursday... oh yeah

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