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H3 Tranny dead

humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
Thanks 4speed. The current arrangement is that I bought a tranny from a 2011 Chevy Colorado (V8 4x4 model). Its a 4L60e and its on its way to me now.
I opted out of the 6L80 when ATV chimed in. Bought all new seals, filter and pan gasket. I'm holding on to my H3 tranny in case I'll need the valve body and pan, but like you said that should be a direct fit.

For the old tranny, I am planning to dive in and evaluate if I'm up for fixing it. Not too confident in my mechanical skills, and wouldn't want to sell a bad tranny to someone if a buyer comes along.
 
Ghostbuster

Ghostbuster

Well-Known Member
Messages
861
Location
United States
Why did you buy a used Tranny and have it shipped across the world? Should have at least bought a brand new one. I mean considering all the trouble you’ve already had with rebuilt/used transmissions...

But good luck.


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humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
Agree, but a brand new tranny costs $3400 from GM I believe. Not the time for that.

If I’m taking the Hummer back home with me after I’m done working here, I would’ve probably. But it doesn’t seem so.

Hoping for the best.


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CaseyS

CaseyS

Well-Known Member
Messages
731
Location
Louisiana
If it doesnt have the hummer/cc compatible pan there are a few things that must be swapped over from your old trans. Valve body, 1-2 accumulator, and another plate that I can remember off the too of my head. Would likely want a new valve body and pan gasket if those have to be swapped.
 
humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
CaseyS said:
If it doesnt have the hummer/cc compatible pan there are a few things that must be swapped over from your old trans. Valve body, 1-2 accumulator, and another plate that I can remember off the too of my head. Would likely want a new valve body and pan gasket if those have to be swapped.
Click to expand...

You guys have me quite worried now. I know for a fact that the transmission was pulled from a 2011 v8 chevy colorado. If it arrives without a scoop in the pan I’ll have to assume that its not from the truck they say it came from. Right?

What problems could arise from swapping the valve body?


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CaseyS

CaseyS

Well-Known Member
Messages
731
Location
Louisiana
I think you are safe. Cc and h3 should use the same transfer case and therefore the same transmission. I have never laid eyes on a cc transmission though.
 
4speedfunk

4speedfunk

Well-Known Member
Messages
4,212
Location
Tardville
The V8s and the L5s have different bell housing bolt patterns, so if you have a 5-cyl...you will need to swap the bell out. Also the V8s may take (I’m not sure) a different length input shaft. The CC trans should have the correct pan & valve body.

There are several guys on here that have done L5 to V8 swaps, and they do have to mess with the trans. To get to t to bolt up. Maybe 06H3 will chime in...he would know exactly what you need to do.
 
Last edited:
humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
4speedfunk said:
There are several guys on here that have done L5 to V8 swaps, and they do have to mess with the trans. To get to t to bolt up. Maybe 06H3 will chime in...he would know exactly what you need to do.
Click to expand...

Already been through the V8 swap. Changing that input drum was what got me into this mess in the first place. If I knew then what I know now.




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humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
The guy that sold me the tranny got into an argument with DHL over the address on the airway bill, took it back and refunded my money without asking.

Alternative needed.
 
humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
Reman tranny from TransmissionAuthority (rock auto) arrived this morning. The case was flooded with oil and the strap holding the tranny in place was broken.
I did what the website recommends and refused to sign for it and contacted the supplier.

Lets see
 
humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
Hi guys, the new tranny will be shipped tomorrow. I'm going to get a new tru-cool 40k cooler to replace my current one to avoid contamination.
I'm also looking for braided lines that go from the tranny, my current cooler line situation includes hose clamps and, pretty sweaty and messy.

Has anyone bought a 6' hose kit that they're happy with? Any help would be greatly appreciated.

lpd47391-top.jpgScreen Shot 2018-05-20 at 1.42.16 AM.jpg
 
J

JPaul

Well-Known Member
Messages
2,401
Location
Way up north, UT
What's wrong with the factory hard lines? Seems going with braided hose could be a pain since you'd have to add anchoring for it and make sure to route it away from the nice hot catalytic converter.

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humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
JPaul said:
What's wrong with the factory hard lines?
Click to expand...

I currently have the i5 lines on the new V8 setup, the alpha lines have different part numbers and are routed slightly differently (to clear the bell housing & alpha downpipes). At the moment my lines pass close to the cat converter and I can’t bend them or reroute them.

Also can’t get the alpha lines because my downpipes & cat are not routed stock either.

I’ll take pictures when its on the ramp and post them soon.


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amrg

amrg

Well-Known Member
Messages
2,317
Location
Qatar
Ya ramrod when ru installing that 6 speed? I know you already have the output shaft ready and thats like 90% of the work ;)
Sure that supercharged 5.3 needs abit more torque too!

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RamRod

RamRod

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Messages
3,914
Location
AB, Canada
The adapter between the 6l80e and the tcase is my current hold up....not sure when it will all com together


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humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
After fixing this and that, and installing the new tranny. I noticed a consistent clicking sound while idle, it didn’t increase in tempo while accelerating. The sound can only be heard from the drivers seat, move your head a few inches to the right and it goes away.
Drove 150 miles.
Today I checked my transmission fluid, it was a bit on the low side. When I topped it up the sound went away. Looking for thoughts on damage caused to my newly rebuilt transmission [emoji21]


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Mr_Rich

Mr_Rich

Well-Known Member
Messages
636
Location
High Desert & Santa Maria
humvee said:
After fixing this and that, and installing the new tranny. I noticed a consistent clicking sound while idle, it didn’t increase in tempo while accelerating. The sound can only be heard from the drivers seat, move your head a few inches to the right and it goes away.
Drove 150 miles.
Today I checked my transmission fluid, it was a bit on the low side. When I topped it up the sound went away. Looking for thoughts on damage caused to my newly rebuilt transmission [emoji21]


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Click to expand...

I think you're probably okay. I defer to Bowtie Overdrives procedures for new trans installs. I think you can download some info there. Main thing is that they sell a small inline filter that you use temporarily to catch any possible debris during break-in. Also check line pressure at the test port on the driver's side of trans and check line pressure through all gears. Of course, you've probably bypassed all of that and the truck drives fine now. You can always try the inline filter on one of the cooler lines and run it for a short time and then inspect the guts of the filter rather than dropping the pan and checking everything that way.
 
humvee

humvee

Well-Known Member
Messages
507
Location
Doha, Qatar
I’m two liters in and still not at the mark. I think one more should do it. Will add in small increments.


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Mr_Rich

Mr_Rich

Well-Known Member
Messages
636
Location
High Desert & Santa Maria
It can be deceptive. Last fluid change I thought I added too much fluid in my K1500 and the trans was shifting bad. Turned out I didn't add enough fluid and it's fine now.
 
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