When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
rebuilding my 4l80e with a jakes D1 transbrake and stage 2 overhaul kit. im not sure if this reaction carrier is good or not the grooves pretty mutch match up with the grooves in the band.also im not sure if i leave this seal out in the case the brown one for output shaft, this is an early transmission that had a bolted in yoke and i will be using a slip yoke. i also ruined the black oring seal it tore when i pulled tail housing off.can this be replaced? it seams to be part of the plug with the orfice. thanks for the help. these grooves in middle of drum match band, is drum shot? does brown seal stay when i convert to slip yoke and can plug/oring be changed part number for plug?
That brown seal always stays.
You must have an early core 4l80e. (pre 95)
You will hear mixed reviews on the planet. Personally, if you see railroad tracks...it's no good.
There will be guys that tell you they've run it and had 0 issues. They are probably telling you the truth. They DID run it and they DIDN'T have issues. But I don't like the risk.
Regardless if you use a new planet or not...make sure you set proper band clearance. You may have to weld a ball on the tip to make the pin longer and grind it to get correct clearance.
.060 is a good target regardless of what your book might tell you.
That brown seal always stays.
You must have an early core 4l80e. (pre 95)
You will hear mixed reviews on the planet. Personally, if you see railroad tracks...it's no good.
There will be guys that tell you they've run it and had 0 issues. They are probably telling you the truth. They DID run it and they DIDN'T have issues. But I don't like the risk.
Regardless if you use a new planet or not...make sure you set proper band clearance. You may have to weld a ball on the tip to make the pin longer and grind it to get correct clearance.
.060 is a good target regardless of what your book might tell you.
thank you for the help. i will get a new reaction carrier. are the early and late ones the same or different? what is the issue with the pre 95 planets, are they not as strong? and is that cup plug with the oring replaceable? thanks for your help and patience with my questions
Cup plug with o-ring should have came in your overhaul seal kit
Reaction carrier for pre 95 had different finish for the grooved band. It was also a different hardness. TH400 and early 80e planets were 15RC on the band surface. Newer 80e stuff is 20RC. Plus the newer bands are Borg Warner HE material and therefore they don't wear the drum as aggressively.
Cup plug with o-ring should have came in your overhaul seal kit
Reaction carrier for pre 95 had different finish for the grooved band. It was also a different hardness. TH400 and early 80e planets were 15RC on the band surface. Newer 80e stuff is 20RC. Plus the newer bands are Borg Warner HE material and therefore they don't wear the drum as aggressively.
thanks for taking the time to explain this to me i appreciate it
nick
FYI, the th400 and early 80 planets are not weaker by any means. Just the band surface is a little different.
Proper band clearance and hydraulics to the servo and you'll never have an issue with either one
FYI, the th400 and early 80 planets are not weaker by any means. Just the band surface is a little different.
Proper band clearance and hydraulics to the servo and you'll never have an issue with either one
i understand, but since in will be using a new band i should start with a new or used carrier that is smooth? so not to have any problems.
i have been doing alot of reading up and one thing always seems to pop u the most is how important that clearance for the rear bavnd is
i understand, but since in will be using a new band i should start with a new or used carrier that is smooth? so not to have any problems.
i have been doing a lot of reading up and one thing always seems to pop u the most is how important that clearance for the rear band is
MaroonMonster's recommendation of 0.060" clearance for low-reverse band clearance works well.
I like the short apply distance.
I do however find that this normally creates slightly more drag than ideal... And add a shim under the cover.
Shown here:
I also normally pair the older carriers with the older style bands and vice versa.
Here are two articles for you to continue your desire for knowledge going.
MaroonMonster's recommendation of 0.060" clearance for low-reverse band clearance works well.
I like the short apply distance.
I do however find that this normally creates slightly more drag than ideal... And add a shim under the cover.
Shown here:
I also normally pair the older carriers with the older style bands and vice versa.
Here are two articles for you to continue your desire for knowledge going.
A for those reading/wondering how a shim would help? Let me tell you.
The band clearance is set at .060 so that the servo won't ever in its life "bottom out" in the bore. or run out of travel.
This tight clearance also does create some drag.
The servo shim will let you to still set the clearance at .060, but then come further out of the bore.
This keeps the bottomed-out distance the same, but lets there be less drag.
Personally...I don't bother with them. But I've refreshed units that have had them and I have no worries or issues reinstalling them.
A for those reading/wondering how a shim would help? Let me tell you.
The band clearance is set at .060 so that the servo won't ever in its life "bottom out" in the bore. or run out of travel.
This tight clearance also does create some drag.
The servo shim will let you to still set the clearance at .060, but then come further out of the bore.
This keeps the bottomed-out distance the same, but lets there be less drag.
Personally...I don't bother with them. But I've refreshed units that have had them and I have no worries or issues reinstalling them.
any idea where is the best place to find a good used drum?
MaroonMonster's recommendation of 0.060" clearance for low-reverse band clearance works well.
I like the short apply distance.
I do however find that this normally creates slightly more drag than ideal... And add a shim under the cover.
Shown here:
I also normally pair the older carriers with the older style bands and vice versa.
Here are two articles for you to continue your desire for knowledge going.
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.
7 Most Reliable High-Performance Engines GM Has Ever Built
Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
4l80e reaction carrier ?? 
