Ready to take my trans to the next level...thoughts? - Competition Diesel.Com

TAftw · 07-22-2014, 10:23 PM

I've been reading a lot on here about the 47RH and many of your guys' tricks to getting them performing well. I finally shelled out the money for a decent rebuild and now currently have:

Transgo Diesel TFOD kit (in a NEW valve body)
Kolene steels
Red Eagle clutches throughout
Daaco billet converter, 1200 stall
Sonnax super servo kit w/billet servo covers
High energy bands
HD band strut
HD apply lever
Teflon governor
Deleted checkball
Fully synthetic fluid with a deep pan

Probably a while ton more stuff I can't even remember. I've built it in small steps and really can't recall everything I've done to it.

The way it sits now I think the only thing I can do is add billet shafts and a secondary cooler.

A few questions arise from this:

1) Is there a trick to squeezing more clutches into the direct drum? That drum is applied in every gear except reverse, and I find it crazy that there are only 4 clutches and 3 steels in it (IIRC). I've read a lot on the forum, but am looking for a definitive answer as to if a drum out of a different tranny will allow me to gain some space for more clutches.

2) My converter is pretty nice, lockup hits hard due to it being a big single, yet I am stuck with the 1200 stall. For my setup it works well, but I plan on getting twins and will probably want to change it. Aside from Monster Pump Mike, is there anyone else who makes a two piece rebuildable converter for these trucks? If not, how does one get a hold of Mike?

3) Obviously, a billet input shaft is a must. I've really never heard of the intermediate or output shafts failing, so is it really necessary to add these? The truck will eventually become a hot street truck, no sled pulling, and some minor towing.

Any help would be great. I have searched and read quite a bit, so please be easy

.

mike_belben · 07-23-2014, 12:18 AM

how harsh are the shifts on your truck and what line pressure are you running?

sonnax told me the only thing i shouldnt mix with the tfodhd2 was a super servo.. said just do the cover. i did the transgo kit and raised the line pressure quite a bit but its shifting really soft even at 130psi in the accumulator and 125 in the front servo. my convertor clutch is failing so i assume thats part of it.

ahale2772 · 07-23-2014, 08:36 AM

Quote:

Originally Posted by TAftw

The way it sits now I think the only thing I can do is add billet shafts and a secondary cooler.

not to rain on your parade, but there a quite a few bits in these that are not as good as they could be. you said you read, but I doubt you did enough because there are tons of discussions on what works best for these 47's.

intermediates and outputs don't break? since when?

do some digging, then ask more.

Kryp2nitE · 07-23-2014, 06:23 PM

Are you 2wd or 4wd?

An old thread with links to other threads:

http://www.competitiondiesel.com/for...d.php?t=152437

I ended up with 6 clutches in the direct drum, 4 in the forward.

You really need to search more, there is so much info on this and CF on 47rh builds.

07-22-2014, 10:23 PM	#1
TAftw Name: TAftw Title: Diesel Enthusiast Status: Not Here Join Date: Dec 2012 Location: Western Mass Member`s Gallery Posts: 139	Ready to take my trans to the next level...thoughts? I've been reading a lot on here about the 47RH and many of your guys' tricks to getting them performing well. I finally shelled out the money for a decent rebuild and now currently have: Transgo Diesel TFOD kit (in a NEW valve body) Kolene steels Red Eagle clutches throughout Daaco billet converter, 1200 stall Sonnax super servo kit w/billet servo covers High energy bands HD band strut HD apply lever Teflon governor Deleted checkball Fully synthetic fluid with a deep pan Probably a while ton more stuff I can't even remember. I've built it in small steps and really can't recall everything I've done to it. The way it sits now I think the only thing I can do is add billet shafts and a secondary cooler. A few questions arise from this: 1) Is there a trick to squeezing more clutches into the direct drum? That drum is applied in every gear except reverse, and I find it crazy that there are only 4 clutches and 3 steels in it (IIRC). I've read a lot on the forum, but am looking for a definitive answer as to if a drum out of a different tranny will allow me to gain some space for more clutches. 2) My converter is pretty nice, lockup hits hard due to it being a big single, yet I am stuck with the 1200 stall. For my setup it works well, but I plan on getting twins and will probably want to change it. Aside from Monster Pump Mike, is there anyone else who makes a two piece rebuildable converter for these trucks? If not, how does one get a hold of Mike? 3) Obviously, a billet input shaft is a must. I've really never heard of the intermediate or output shafts failing, so is it really necessary to add these? The truck will eventually become a hot street truck, no sled pulling, and some minor towing. Any help would be great. I have searched and read quite a bit, so please be easy . __________________ '95 ECLB 12 Valve- 3k gsk, BHAF, 100 plate, Mack rack plug, boost elbow, 4" exhaust, gauges, upgraded auto, 290k miles, too $hitty for this forum.

07-23-2014, 06:23 PM	#4
Kryp2nitE Name: Kryp2nitE Title: Green Behind the Ears Status: Not Here Join Date: Oct 2012 Location: San Diego, CA Member`s Gallery Posts: 64	Are you 2wd or 4wd? An old thread with links to other threads: http://www.competitiondiesel.com/for...d.php?t=152437 I ended up with 6 clutches in the direct drum, 4 in the forward. You really need to search more, there is so much info on this and CF on 47rh builds. __________________ 95 2WD HE351/BHT3B twins, OFV060HP, Built 47RH, Airdog 150, 18* Timing, AFC Live Stage 2

07-23-2014, 12:18 AM	#2
mike_belben Name: mike_belben Title: Green Behind the Ears Status: Not Here Join Date: Aug 2011 Member`s Gallery Posts: 96	how harsh are the shifts on your truck and what line pressure are you running? sonnax told me the only thing i shouldnt mix with the tfodhd2 was a super servo.. said just do the cover. i did the transgo kit and raised the line pressure quite a bit but its shifting really soft even at 130psi in the accumulator and 125 in the front servo. my convertor clutch is failing so i assume thats part of it.