4R100 Rebuild Time
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Freshman User
Joined: Sep 2006
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4R100 Rebuild Time
Fixing to go through my trans in my 00 PSD and needed some input. In the last one I built for someone he requested ALto Red Eagle clutches and Kolene steels and Direct Powerpack. When it is someone else's $$ that is fine but are the Kolenes and Powerpacks a necessity? I have heard mixed remarks that Borg-Warner and other clutches are just fine along with stock steels (assuming they are still good). I understand that the Powerpacks provide more clutches with improved clutch surface area but do you need the Powerpacks in all (or any) clutch packs? What is the advantage of Kolene steels?
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
I rebuilt mine last year and used the Alto Powerpacks in all the forward packs. Kolene steels were included in the packs. The coast clutch and reverse packs were new stock steels with Raybestos clutches. I am no auto trans expert (first one I rebuilt), so I can't tell you the advantage of the Kolene steels, but I put the all the Powerpacks (included in the kit) for longevity in towing my 5ver. I also went with the Kevlar intermediate band and triple disc TC. I used the Transgo Reprogramming kit and installed the TC Lock up valve kit in the pump.
Post Fiend
Joined: Sep 2006
Posts: 5,584
Likes: 0
From: Millbrook Alabama
Give a call to Suncoast down in Ft Walton Fl. They have a couple of different rebuild kits for the 4R100. they are very knowledgeable and will be happy to give their recomendation on the clutches, and steels.
Sun Coast Converters Diesel Transmissions, Fort Walton Beach FL
Look under kits and components.
Sorry I couldnt help more, but internal tranny components are black magic to me.
Sun Coast Converters Diesel Transmissions, Fort Walton Beach FL
Look under kits and components.
Sorry I couldnt help more, but internal tranny components are black magic to me.
Logistics Pro
Joined: Mar 2002
Posts: 3,881
Likes: 84
From: Wake Forest, NC
It all depends on what you want to do.
Sure the top tier parts are nice, but how long did you make it on the factory stuff? Not too bad eh?
The powerpack gives you more holding power, for increased levels above stock. The kolene steels help to dissipate heat better.
Here is their answer:
Kolene® is a salt bath nitriding process. In generic terms, it is a thermochemical diffusion process, whereby ferrous parts are processed in molten salt with a specific nitrogen potential. In plain English, it provides a surface treatment that enhances wear and fatigue resistance from 200% to 500%.
Kolene Steel Plates
Kolene® plates are higher heat resistant and offer increased lubricity.
Building a trans engine or anything else is always a price/capacity trade off.
Sure the top tier parts are nice, but how long did you make it on the factory stuff? Not too bad eh?
The powerpack gives you more holding power, for increased levels above stock. The kolene steels help to dissipate heat better.
Here is their answer:
Kolene® is a salt bath nitriding process. In generic terms, it is a thermochemical diffusion process, whereby ferrous parts are processed in molten salt with a specific nitrogen potential. In plain English, it provides a surface treatment that enhances wear and fatigue resistance from 200% to 500%.
Kolene Steel Plates
Kolene® plates are higher heat resistant and offer increased lubricity.
Building a trans engine or anything else is always a price/capacity trade off.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
It all depends on what you want to do.
Sure the top tier parts are nice, but how long did you make it on the factory stuff? Not too bad eh?
The powerpack gives you more holding power, for increased levels above stock. The kolene steels help to dissipate heat better.
Kolene Steel Plates
Kolene® plates are higher heat resistant and offer increased lubricity.
Building a trans engine or anything else is always a price/capacity trade off.
Sure the top tier parts are nice, but how long did you make it on the factory stuff? Not too bad eh?
The powerpack gives you more holding power, for increased levels above stock. The kolene steels help to dissipate heat better.
Kolene Steel Plates
Kolene® plates are higher heat resistant and offer increased lubricity.
Building a trans engine or anything else is always a price/capacity trade off.
In fact, at 128000 miles, the clutch packs and drums still looked and gauged like new.
I chose to upgrade due to fact that I tow and power levels have been increased above stock, so the game has changed.
I was looking for increased reliability. Overkill; maybe. But, I did the same type of upgrades that the top rebuilders use to increase reliability and reduce the chances of trans failure. Just giving my trans a better chance to survive in the "real world".
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Freshman User
Joined: Sep 2006
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My point exactly. I got over 200K on stock trans. The only reason I am rebuilding now is it is just starting to slide during the 1-2 upshift. If I am not mistaken I thought I heard that Borg-Warner or Raybestos make the OEM components. I don't plan on racing or doing extremly heavy pulling but it does have chip, exhaust, (the basic bolt ons) and does go through the occasional stress test. My thinking is with a good aftermarket trans. cooler, good shift kit, and the basic valve body and converter upgrades I could extend the life of the stock replacement parts well beyond normal life expectancy. I by no means want to take a cheap way out however I don't want to hit the point of overkill. Especially when there is cost involved.
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