So, finally the guy who put my tranny in has the time to rebuild it less than a year after he put it in. The rebuild is completely covered under warantee, but this time around, I would like to beef it up a little. What are some suggestions for internals to put in to replace the weak stock parts. I wont be doing any super heavy towing, but I do enjoy playing around with my truck on occasion. I am planning on putting in a bts valve body and 6.0 transcooler. I have also considered the PI torque converter, but its 1k, is there better things to spend that 1k on in terms of internals or should I go with that and a couple upgraded internals. Thanks for any replies I dont know the first thing about tranny's so the simplest language would be greatly appreciated. Thank you much

 

anybody???

 

I'm no expert, but that's kind of a vague and hard to answer ?

Without knowing what was put in the rebuild the first time its hard to know what to recommend for "upgrades" and the abuse its gotta endure...

Upgrades Options:
Clutches & Steels
TC
Bearings & Bushings
Shafts
'01's from diode to sprag
Pumps
Valve Bodies
Drums
etc...


Sorry I'm not more help.

 

Thanks sledhead. Yeah, i dont really know anything either. I just didnt know if there were some specific things that were known to be weak in the tranny that it would be recommended to upgrade to, thanks through!

 

Precision TC will make a big difference. Call BTS and talk to brian about what he recommends..

 

Will do, thanks Andrew.

 

Installing an center support housing, that has been machined to add a steel spacer ring behind it, is a worthwhile upgrade. It give almost 360* support and prevents the wear associated with the aluminum housing against the case. I would also upgrade to a 3 or 4 disc Coast Clutch. There are also some mods to the pump and some clearances that can be tightened up over the stock specs that will increase longevity and shift
performance.
I have recently installed the Precision Industries Stallion TC. I can tell you from experience, it is worth the money. If you decide on one, I know of a place that sells them at a reasonable price.

 

Is this the same as a TC? or something entirely different?

Could you possibly specify, or have an idea or link of where I could find some more details on this stuff?

This is great! Thanks guys

 

Answers within your quote.

 

Glad I picked the subscribe button on this because I've overheard Roland talk about some of the things he did on his self built trans, but wasn't taking notes at the time (I was a tad busy with injector cups).

So the support housing is beneficial, improve coast clutch, better TC, pump mods. I'm also planning a new valve body with mine, and so far that's all I know.

How are the feelings about which clutches and steels to buy? I'm thinking Borg Warner, but that's only because I read it somewhere that Brian uses them.

 

Here is the list of enhancements Ford does on their HD4R100:
Enhanced torque converter, oversize one piece case bushing, enh forward, direct, intermediate friction plates, new special upgraded steel plates, center support enh, oversize pump gear set-improved flow, upgraded extension housing bushing, 45 element intermediate sprag, special coast clutch drum-improved braking under load, new iron planetary assy, new one way clutches,new electronics, revised calibration for better shifts under heavy duty use. (enh=enhancement)
Just copying off the list Tugly sent me, your tranny guy should know more about what's what.
Good luck.

 

I'm very interested in the PI TC. If you would be so kind to let us know where the good deal is.

 

Tug started a pretty good thread about the HD. I've got it bookmarked somewhere.

 

Here is a very thorough rebuild kit with the BW Hi Energy clutches. 4R100 Rebuild Kit Super Heavy Duty 1998 & Up 4 Wheel Drive Regular And Super Duty (Gas & Diesel) :: 4R100 ---- E4OD4R100.COM :: Ford Rebuild Kits :: Pro-Built Automatics They also carry the Precision industries TC. While it doesn't include all the things I mentioned, it does provide for a very good basis for your rebuild. The center support and coast clutch upgrades would require changing out some hard parts (there are few other upgrades I didn't mention), or having yours machined.
I could go on and on about "little things" that make for a better transmission, but those are best saved for discussion once your "into the trans" and understand what's being done. It is those "little things" that set apart transmission builders. It is an attention to detail and a "blueprinting" process. These details/specs are not given by the ATSG manual and are found only through the experience of others who were willing to share this info. When you start going from a stock type rebuild to a performance one (with increased clutch counts) that you start have to pay attention to detail even more. Setting clearances sometimes requires making changes in snap ring and plate thicknesses or machine work. I have a variety of hard parts that makes that job a little easier.

 

You can build you own "better" version of the HD4R100 by using the afore mentioned kit and adding the other upgrades. The HD4R100 is the way Ford should have built the transmission in the first place.

Use the link in my previous post and look in the menu on the left for the PI Stallion torque converters.