4L60E Tranny Rebuild Thread
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4L60E Tranny Rebuild Thread - 1/16/2006 1:49:59 PM
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Hanr3
Wheels & Tire Moderator
Posts: 3479
Joined: 5/11/2005
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Heres the background.
'00 S10-Blazer 4x4x4 with 110,000 miles. While back up my driveway New Years weekend my tranny went out. It happened during a rolling reverse. I was backing up hill, coasted forward to readjust (still in reverse) and gave her gas to go backwards again. More then I should have obviously. I have done this routine in the past without any problems.
What did I break? I broke my sun shell. Don't worry, you'll see pics soon enough. What is a sun shell? I'll show you that too. When it breaks you lose reverse, 2nd and 4th gears.
I made refference to this in another post some time ago, and the request was made to see the guts as I rebuild it.
Here ya go.
Pic of my 4L60E tranny out of the truck. The top two bellhousing bolts are the hardest to get out. You need a 15mm wobble socket and about 30" of extensions on your rachet. On my 700R4 tranny I used 18mm, and had to jack teh body up 2" to get to the top two bolts.
Draining the fluid out. I didn't drop the tranny pan to drain it prior to taking it out of the truck. Past experience told me this was a better way. A whole lot messier this way.
Master Rebuild kit for 99-up4L60E tranny, high energy.
Kevlar 2/4 band, pinless accumulators, and Raybestos Z-Pack (3/4 Cltuch Pack).
Reaction Sun Shell, heat treated.
300mm Torque Converter.
I need to clean up my garage to make space to work on this tranny.
I knew I had a parts washer tank in there somewhere.
This is the only space I have left in my garage to open her up. She is on the table awaiting disection.
Tranny pan removed. Black thing is the tranny filter.
Filter removed. Your looking at the valve body and the wiring for all the solinoids that control the 4L60E tranny.
Tranny pan. No real debris in the bottom of it. Which is a good sign.
All the wiring and a few of the soliniods removed.
Valve body and valve body plate removed. You wanted guts. Here ya go.
Valve body with valve body plate still on it. I kept them together so I didn't lose all the check balls between them. Had I lifted off just the vavle body, all teh check balls would have rolled onto teh floor and I wouldn't know where they go.
Vavle body. Can you find all 7 checkballs? I made a diagram so I can put them back where they go when I put it back together.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: 4L60E Tranny Rebuild Thread - 1/16/2006 1:58:05 PM
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Hanr3
Wheels & Tire Moderator
Posts: 3479
Joined: 5/11/2005
Status: offline
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Do you want to see what is behind the rest ot the tranny?
Pic of the pump, what lies behind this is all the clutch packs and gears, the meat of the tranny. The other stuff is the controls the fluid flow, and the fluid flow is waht controls the tranny gears.
Ready????
Here is the pump.
Pump removed. Input and reverse clutch assembles removed. 2/4 band removed. Looking at the input gears and the sun shell. Sun shell is the expected broken part. I need to remove a snap ring holding the output shaft in place.
Output shaft removed, inpust gears are removed. Looking at the sun shell. Expected broken part.
Sun shell removed. Looking at the low-reverse support/reaction carrier assemble. Very large snap ring holds it in place.
Low-reverse support/reaction clutch assemble removed. Looking at the low-reverse spring assemble. I am not taking this stuff out. Rare for the seals to wear out.
That's it. That is all the major subassemblies in a 700R4, 4L60, & 4L60E tranny. There ya go, one tranny in pieces.
There ya go, one empty 4L60E tranny case. Ready for rebuilt parts to go back in her. Now that wasn't so difficult was it????
One rebuild kit. This is where it gets fun. Most of those pieces will end up in that tranny. Sure is a lot of rubber o-rings, gaskets, little filters, etc.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: 4L60E Tranny Rebuild Thread - 1/16/2006 2:02:31 PM
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Hanr3
Wheels & Tire Moderator
Posts: 3479
Joined: 5/11/2005
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So what broke? Wasn't it that sun shell thingy you mentioned? Weren't you going to show us pics of it? So where are they already?
Here ya go.
Pic of my sun shell. Take a look at the next two pics and you tell me if it broke.
Missing a few teeth on the gear huh? They look a little flat don't tehy. Wait till you see the next pic when I have the gear in place.
Teeth? We don't need no stinking teeth. Notice how the teeth on the sun shell don't even touch the teeth in the gear. Can you say striped out? As in this is why my tranny failed. The new sun shell is supposed to be teh best on the market.
One broken sun shell.
Currently all the parts are clean, I have replaced some of the gaskets, filters, etc. I'll post up more pics as I get them.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: 4L60E Tranny Rebuild Thread - 1/16/2006 2:13:29 PM
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swartlkk
Posts: 14472
Joined: 5/1/2005
From: Waterloo, NY
Status: offline
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Very nice writeup and some great pics there!
_____________________________
Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: hanr3, was that a kit? - 1/20/2006 9:55:02 AM
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Hanr3
Wheels & Tire Moderator
Posts: 3479
Joined: 5/11/2005
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No I didn't remove the distriburator cap, although I will check it now that you mention it.
If your going to rebuild it yourself buy the ASTG manual for rebuilding it. Like $20-$25 depending on where you go.
All of my Parts came from a company called Midwest Trannsmissions. The parts are all build for high energy use, and non of them have the fancy marketing names like Raptor, or Beast. But they are the same parts none the less. With a tranny repair shop discount, all of my parts cost me $330, including shipping to my door. Regualr price is around $500.
Been out sick the past coupld of days. We did manage to rebuild it on Wednesday night. Actually he rebuilt the clutch packs, and I reassmbled the whole thing. Hopefully this weekend I get her put back in the truck. Depending on how I feel.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: Did you get your tranny back in? - 2/2/2006 12:52:41 AM
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Hanr3
Wheels & Tire Moderator
Posts: 3479
Joined: 5/11/2005
Status: offline
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Sorry for the delay in the thread. Here is the latest news.
After my bout with the flu, I tried to stuff the tranny back in. Spent the weekend only to realize that I had the wrong torque converter. Torque converter bolt holes to the flexplate didn't line up. Took a few days to get the correct one, got the truck put back together last Sunday. Fired her up and this god awefull grinding noise happened. Thought maybe it was the starter. Bought some shims and some more tranny fluid on Monday. I had to drop the pan becuase I managed to twist up the tranny dipstick and got it stuck. Shimmed the starter, and fixed the dipstick Monday night. Fired her up again, same noise. Called the tranny guy, he had me do a few tests, and the diagnosis is a broken pump. Could have happended while trying to stuff the tranny back with the wrong torque converter (turns out it was also thicker), or it could have happend when I dropped the tranny on the floor in disgust to get the wrong torque converter out.
I spent the night tonight, actually it only took me 2 1/2hrs, dropping the tranny out agian. Tomorrow night I take the whole thing to the tranny guy,a nd we see what is broken and order parts. I have more pics to add, however it is late so maybe tomorrow or Friday night.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: Did you get your tranny back in? - 2/4/2006 6:34:23 AM
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Hanr3
Wheels & Tire Moderator
Posts: 3479
Joined: 5/11/2005
Status: offline
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Thanks for asking.
Update.
We took a look at it and I managed to break my pump. I'll get some pics. Based on the way it broke, I think I broke it when I dropped the tranny in frustration off the jack and onto the floor with the wrong torque converter in it, about a foot drop. The force shattered the pump rotor into three pieces. I got lucky, had I damaged the back of the pump body in the process it would have cost me $500 for a new pump. Instead I broke a $25 part, granted it is one of the most important parts of teh tranny. The pump rotor holds all teh vanes that move the tranny fluid throughout the entire tranny and cooling system.
In about 5 hours I'll be heading out to rebuild the pump, and drag the tranny back home again. So hopefuly by this time tomorrow I should be back up and running. Now I have to spend another 30 bucks on new tranny fluid.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: Did you get your tranny back in? - 9/9/2006 2:48:35 AM
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Hanr3
Wheels & Tire Moderator
Posts: 3479
Joined: 5/11/2005
Status: offline
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Due to another thread, it came to my attention that I never finished this thread.
I managed to get the tranny pump rotor replaced, got the correct torque converter, had to buy a new flexplate. I bent the old one trying to force the incorrect size troque converter into place.
Had I done my homework and compared the new to the old torque converter properly I would have know I had the wrong one.
You can see how much thicker the wrong one is in the below pic.
List of mistakes.
Dropped the tranny of the jack.
Failed to verify the new torque converter was the same size as the old one. Not even the bolt holes lined up. Off by 1/4" or so.
Results.  
I am extremely pleased with the trannies performance now. She grabs hard and fast, holds gears longer and I can launch off the line. She gets up and moves. It'll hold passing gear to 85-90. Drop into 4th gear and I still have peddle left. Don't ask me how I know. I plead the 5th. While cruising 55mph my rpms are at 1650. Jump up to 70 and they jump up to 2000rpm.
Cost, with all my mistakes, new parts, tranny expert labor, and about 15 gallons of tranny fluid. Around $500. I took all my old clutch packs from the '00 4L60E and put them into my '87 700R4 which is a 60 degree bolt pattern. Teh clutches looked almost brand new and they had 102,000 miles on them. I was having issues witht he '87 700R4, turns out the valve body needed to be replaced. Cheaper to replace the valve body then fix the valves that were lose. While I had the tranny out, I swapped in the '00 clutch packs.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: Did you get your tranny back in? - 9/15/2008 7:36:13 AM
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amp88fan
Posts: 15
Joined: 9/13/2008
From: aurora,IN
Status: offline
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can you recomend a place to get the master rebuild kit?....i was looking at this one on e-bay http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=170071916528...i dont think it comes with the sun shell but i found one of those also...http://cgi.ebay.com/ebaymotors/_Car-Truck-Parts-Accessories__Sun-gear-Shell-700-R4-4L60-E-Up-graded_W0QQitemZ220280058002QQadnZCarQ20Q26Q20TruckQ20PartsQ20Q26Q20AccessoriesQQadiZ2865QQcmdZViewItem?hash=item220280058002&_trkparms=39%3A1%7C65%3A1%7C240%3A1318&_trksid=p4506.c0.m245...is there anything else i will need...besides a mannual?
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RE: Did you get your tranny back in? - 11/12/2008 7:12:20 PM
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CoolAirVw
Posts: 17
Joined: 11/12/2008
Status: offline
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Sometimes they break too!
< Message edited by CoolAirVw -- 11/12/2008 7:27:24 PM >
_____________________________
ASE Certified Master Auto-Technician with L1 Advanced Engine Diagnostic Rating
ATRA Certified in Rebuilding, Diagnosing & Installing Transmissions
Do-it-yourselfers contact me for Valve Body Reboring to correct 1870 codes.
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Did you get your tranny back in? - 
