Quote:
Originally Posted by indymachinist
Hey clinebarger
As I posted the other day I got ahold of a cheap '93 4l80e that was taken in as a supposedly working core. (I bought it from a retired trans builder that had it left laying around) Even though it supposedly works, I am going to assume it needs a rebuild to be "right."
I am going to use this in a turbo LS swapped C10. It will have a max of about 800hp but more realistically around 4-500 horsepower for street cruising.
I know the 800hp is pushing it pretty hard on the input shaft and forward clutch hub. I also know this trans still has the old outdated harness and case connector so it likely has never been opened up. Sounds like the 93 is good that it has the larger overdrive roller clutch but bad that it also has a 16 element intermediate sprag.
So it sounds like I need to upgrade the wiring harness and the intermediate sprag for sure. Probably the input shaft and forward hub also? Who do you go to for good rebuild kits? I have been looking at the rebuild kits from Jake's Performance either stage 2 or stage 3.
http://www.jakesperformance.com/rebuild-kits/
The price seems fairy steep but maybe not too bad once you add up all the little things this trans probably needs anyways to be brought up to spec. What do you suggest? |
Quote:
Originally Posted by indymachinist
I should add I have never rebuilt a transmission before but I'm a machinist for a day job so I am familiar with all of the various measuring tools and how to use them. Sounds like that is a lot of the job.
Also, I haven't even taken the pan off to check the magnet or get a general status check on this transmission. I do know it had fluid in it when I picked it up and it was red and not burned smelling.
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Before you order anything, I made a typo in my original post, Early (Pre '97) 4L80E's have a Intermediate Roller Clutch, Not a Sprag.
It would be in your best interest to buy a compete 34 Element Direct Drum.
Drum,
http://www.ckperformance.com/View/6-...L-RETAING-RING
Calibration kit, Accumulator delete, PR Spring, Intermediate Snap Ring, Hi-Rate direct springs, Machined TH400 Direct Piston, Parts to rollerize the Case, & Instuctions.
Forward Hub,
http://www.ckperformance.com/View/FO...ZED-CLUTCH-HUB
Input Shaft,
http://www.ckperformance.com/View/CO...ON-INPUT-SHAFT
Coated Pump Gears,
http://www.ckperformance.com/View/4L...D-PUMP-GEARSET
Sonnax Boost Valve,
http://www.sonnax.com/parts/2170-lin...re-booster-kit USE THE CK PR SPRING!!!
Sonnax PR Valve,
http://www.sonnax.com/parts/1989-lub...egulator-valve
Sonnax shims to set Carrier end play,
http://www.sonnax.com/parts/1979-shim
Bearing kit,
http://www.sonnax.com/parts/3021-bearing-kit
Sonnax TCC Valve,
http://www.sonnax.com/parts/2025-tcc...ator-valve-kit
I like to use a TH400 Rear Band, Front Band RARELY need replacement!
Local Trans Supplier.
Seal Kit, Local Trans Supplier.
Steel Plate kit, Local Trans Supplier.
Borg Warner Fiction Module, Local Trans Supplier. Here is a picture of the Module & part number.
