Builds Another Texas LS1 Swap

[warpdriv]

To add what TT mentioned, I have a bout 1/4" between the DS and the pan. So if I build a smaller diameter DS I may be ok. I'm researching how small of a diameter I can go with by using thicker pipe like DOM instead of DS tubing. Maybe I'll make one out of an axle shaft.

 

[epike7915]

Excellent info you are putting together here. <Subscribed> Looks like its coming together good!

E.

 

[kirk]

What about a really long slip yolk to neck down from the top?

 

[warpdriv]

What about a really long slip yolk to neck down from the top?

Hmmm.... That's a good idea. Where would be a good source?

 

[kirk]

Hmmm.... That's a good idea. Where would be a good source?

Tom Wood's Custom Drive Shafts - Tom Woods Custom Drive Shafts Custom Driveshafts Specialist

something like this flipped the other way

 

[72RatCamaro]

So in on this!!!! I am in love with the LS platform and the Landcruiser platform. They need to mate.

Whats the dollar you are figureing for the entire deal. Minus labor.

 

[warpdriv]

Whats the dollar you are figureing for the entire deal. Minus labor.

I think it will be somewhere in the neighborhood of $6,000. I'm trying to track cost of the project in my first post. Big items add up fast and the rest nickle and dime ya.

 

[warpdriv]

Just got off the phone with Toms and they said they can make me one 1 1/4 in diameter.

 

[Texican]

Just got off the phone with Toms and they said they can make me one 1 1/4 in diameter.

Marlin offers the long slip, but you would have to get someone local to build it.....

 

[warpdriv]

Marlin offers the long slip, but you would have to get someone local to build it.....

Thank you. I'll give him a call. The Tom's guy said a long slip yoke will vibrate after 1000rpms. I don't think I'll ever have it in 4 hi here unless it snows.

 

[TwoTonic]

Front shaft alternatives

Just got off the phone with Toms and they said they can make me one 1 1/4 in diameter.

That's about what the TBss front shaft is...
I didn't have my micrometers, but eyeballing it the thing is about half the diameter of the Toyota shaft and they seem to handle a lot of torque OK.

 

[warpdriv]

Wiring...

Got the wiring harness on. It took about 45 minutes after I laid it out to figure what went where. Here is a pic of the harness.

 

[warpdriv]

Starter Wiring

Today I worked on figuring out how to wire the starter.

Key is in the On position: The circuit runs 8v from the switch into the gear indicator on the transmission. 2v is seen at the starter.

Key is in the Start position: 12v goes down the same circuit and if the gear indicator is in P or N, it passes through to the starter.

So I took my old engine harness and cut what I needed and created a harness that will engage the starter and feed power to the computer. Note the IH1 connector is the point where the engine harness interfaces with the gauges, dash, and ignition switch. It's behind the glove box.

Pics: Wiring diagram, IH1 connector, harness.

 

[Texican]

Ready by Roundup?

 

[warpdriv]

Ready by Roundup?

LOL. Maybe, but I'll be bringing the 40. I haven't driven it since last round up.

 

[kirk]

Today I worked on figuring out how to wire the starter.

Key is in the On position: The circuit runs 8v from the switch into the gear indicator on the transmission. 2v is seen at the starter.

Key is in the Start position: 12v goes down the same circuit and if the gear indicator is in P or N, it passes through to the starter.

So I took my old engine harness and cut what I needed and created a harness that will engage the starter and feed power to the computer. Note the IH1 connector is the point where the engine harness interfaces with the gauges, dash, and ignition switch. It's behind the glove box.

Pics: Wiring diagram, IH1 connector, harness.

Hi Jeff we are running different ecms and years but you may want to double check this. My gm harness takes the signals, key on 12v+ and crank key position at the GM ECM. It sends those through the GM harness to the starter. so the IH1 wires I sent to the GM ecu first and never directly hook to the starter. My GM harness had it this way.

There is about no room to work up by that IH1 connector! Wait till you have to fish wires from the IH1 to the drivers side it sux!

Kirk

 

[warpdriv]

Hi Jeff we are running different ecms and years but you may want to double check this. My gm harness takes the signals, key on 12v+ and crank key position at the GM ECM. It sends those through the GM harness to the starter. so the IH1 wires I sent to the GM ecu first and never directly hook to the starter. My GM harness had it this way.

There is about no room to work up by that IH1 connector! Wait till you have to fish wires from the IH1 to the drivers side it sux!

Kirk

After I came inside I was thinking about the how the gear indicator works on the 4l60 and am going to look into wiring harness that came with the tranny. The 8v in the starter circuit when the key is on was unexpected.

I hope I do not have fish that connector over there. It looks like it would take a delicate amount of C4!

 

[kling-on]

Wish I knew more about my harness to help you wih this... But I bet my old ass truch didn't have the voltage change anyway

 

[kirk]

After I came inside I was thinking about the how the gear indicator works on the 4l60 and am going to look into wiring harness that came with the tranny. The 8v in the starter circuit when the key is on was unexpected.

I hope I do not have fish that connector over there. It looks like it would take a delicate amount of C4!

Honestly if you are the only driver why dont you just skip going through the tranny all together? Also you may already have neutral safety and you dont know it. I think your gm tranny controller sends a signal to the gm ecm already. I know my gm setup does so I am going straight from IH1 to the gm ECM.

 

[kling-on]

Mine starts in gear... Found out the hard way