Success lowering trans temp with @chaulk04 mod

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68Malibu383

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I installed the transmission heater bypass device from the member listed in the title about 2 months ago and have been very pleased. Without pulling a load, on the highway, with outdoor temperatures in the '70s and '80s, my transmission temperature is low to mid 120s after 30 plus minute drive. Stop and go traffic, highest I've seen is mid-140s and it cools down immediately once I cruise for a few minutes.

I towed a 3,000 lb car on my car hauler over about 120 mi trip and outdoor temps we're in the mid '70s and transmission hovered around upper 130s.

I towed a four-wheel drive F-150 on my car hauler yesterday with outdoor temps right at 90°. 60 miles an hour on the highway over 100 mi drive, trans temps stayed in the mid-140s. Hit mid 150s in stop and go.

Huge difference and very happy with the modification!
 

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TotallyHucked

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Just got mine from him the other day, can't wait to throw it in. I hate how my trans gets to 190-195* with no load
 

Dodge 1500 4X4

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Yes, it's for the 8-speed contact @chaulk for bypass kit.
 

crazykid1994

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Where do you guys pick up this mod? Does it work on the zf-8?
It’s only for the zf8 in the 1500s as the 2500 uses a different thermostat setup. It is well worth it.
As an addition, I just installed the ppe transmission pan. My temps went up slightly. I think it’s due to my exhaust crossover pipe being so close. I know the plastic is less heat absorbent as well. I ordered some exhaust wrap so I’ll post back after I get that installed. Hoping my temps drop back down.
 

Gmantwo

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Someone point me to install instructions. I have my part. Now I just have to figure out how to get the drain plug out of the transmission pan. What a stupid design to put the drain right above the exhaust pipe.
 

CanuckRam1313

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Someone point me to install instructions. I have my part. Now I just have to figure out how to get the drain plug out of the transmission pan. What a stupid design to put the drain right above the exhaust pipe.
If you've purchased the @caulk04 tranny mod there will be a QR code on the package to scan. The detailed instructions will be there.
 

Black1500Ram

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Someone point me to install instructions. I have my part. Now I just have to figure out how to get the drain plug out of the transmission pan. What a stupid design to put the drain right above the exhaust pipe.
Also with the front of your truck jacked up, you don’t need to drop the trans fluid.

When I did the mod maybe a shot glass worth of fluid came out before I was able to make the switch.

And that was with me fussing/cussing trying many attempts to get the o clip back in.
 
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