BUILD THREAD 84 Regal back half/caged/mini tubbed lq4/4l80e build

Tony1968

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Jul 1, 2018
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Make sure you get any residual fluid out of your calipers before doing the dot5.1.
I think that rear should hold up fine until you decide to change it up.
 
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Roblq84

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Oct 29, 2023
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Make sure you get any residual fluid out of your calipers before doing the dot5.1.
I think that rear should hold up fine until you decide to change it up.
Calipers and lines are all brand new, and have never been filled, but 5.1 is compatible with DOT 3 and 4. DOT 5 is the one you cannot mix since it’s silicon based and doesn’t mix with glycol based.

The gears are toast, extremely worn but will
Get the car moving around the block and a few test drives lol I would say the backlash is like 1/8th inch lol 🫢
 
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Tony1968

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Jul 1, 2018
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NW Indiana
Calipers and lines are all brand new, and have never been filled, but 5.1 is compatible with DOT 3 and 4. DOT 5 is the one you cannot mix since it’s silicon based and doesn’t mix with glycol based.

The gears are toast, extremely worn but will
Get the car moving around the block and a few test drives lol I would say the backlash is like 1/8th inch lol 🫢
I did read about the 5.1 but got it mixed up with the 5. Thanks for setting me straight.
1/8th inch !!! Holy crap. Lol
 

Roblq84

Apprentice
Oct 29, 2023
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Started to piece together some body work the past 2 weeks,
Painted the tail light bezels, headlight bezels, grill, found a used header panel, got bumper fillers, and temporarily attached the bumper and mounts, I almost forgot what the car looked like.
I had a rebuilt 4l80, removed the pan, checked it all out, got the -6an banjo fittings for the cooler lines since they are better for clearence, I have a stock cross member I may modify to fit, or go with the hooker, not sure yet.
 

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Tony1968

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Jul 1, 2018
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Read an article about those banjo fittings and how they can reduce flow. Just an FYI. Many use 90 degree fittings and hammer a little clearance to the tunnel.
 
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Roblq84

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Oct 29, 2023
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Read an article about those banjo fittings and how they can reduce flow. Just an FYI. Many use 90 degree fittings and hammer a little clearance to the tunnel.

I was thinking the same thing, I’ve read every page about them, and am most likely going to try to clock the bolt hole to the hole in the fitting to maybe help flow, but I can’t find anywhere that says it really hinders it, a smooth 90 would be ideal, but once I fit the trans up ill Know for sure how much clearance there actually will be 😁👍🏻
 
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Tony1968

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Jul 1, 2018
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It's been awhile for me but I know one of the fittings (rear i believe) has to be a longer internal tube for proper lubrication. There are many threads out there about the restriction from banjo fittings but the one I'm looking for was specifically by an expert trans builder. May have been a magazine article 🤔
 
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Roblq84

Apprentice
Oct 29, 2023
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It's been awhile for me but I know one of the fittings (rear i believe) has to be a longer internal tube for proper lubrication. There are many threads out there about the restriction from banjo fittings but the one I'm looking for was specifically by an expert trans builder. May have been a magazine article 🤔
Yup, rear fitting is longer, and needs to protrude into the case, and is also the return (cooled) side, front is short and the cooler feed (hot) line
 
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Roblq84

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Oct 29, 2023
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I originally had lower radiator hose gates 22373, it kind of fit, but could have been better, there was definately tension on it pulling, and was contacting the idler arm badly, the radiator outlet and thermostat outlet are both 1.5 inches

I swapped it for dayco 71321, it’s a 1.5-1.75 inlet outlet, I cut off 2.5 inches at the 1.75 end, which was right before the expansion to 1.75, which kept it 1.5 it fits perfect, clears the idler arm and frame with no contact


Popped the trans in to see how fitment is, may need to alter the driver side jegs header since it contacts the lower control arm mounting point a bit, and getting ideas for the cross member, contemplating on altering the original or just going with the hooker black heart g body ls swap, that one will also help with the dual exhaust
 

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