Engine/Transmission (1994 - 1998) Goerend transmission fine tuning

[Hummin Cummins]

Got my new GB transmission with triple disk installed yesterday. First drive out I went easy on the loud pedal and 1-2 shift was good then 2-3 shift came no more than 5 seconds later. Is this too early?



I drove it on an all out WOT run and it seemed fine. Under light throttle is when it seems to shift 2-3 too quick.



I'm gonna set my throttle linkage and tps, and check the t/v cable. Maybe its just me not being used to how a transmission should feel Its incredible the difference between an aftermarket and a stock transmission.



Chris

 

[Blakers]

Chris, I only had to set my TV cable after the installation. It should go full forward and full back when the throttle is full open and closed. There's an adjustment on the end by the fuel pump - just push in a little button.



Let me know if you need any help with it. I'm certainly no expert, but since I have one, I might be able to help a little.



Blake

 

[Hummin Cummins]

I haven't had a helper handy to check the tv cable correctly. I did notice there is some slack in the cable when the throttle is full closed. I'll get the wife to work the pedal for me and check it out tomorrow after work.



Chris

 

[champspa]

i've got one and with the instructions on it Dave says it will shift 2 to 3 quick unless pressed .

 

[Hummin Cummins]

i've got one and with the instructions on it Dave says it will shift 2 to 3 quick unless pressed .

cool

That puts my mind at ease. I'm still gonna check the tv cable adjustment, I'm so happy to have a good transmission now. We will put it to the test in two weeks on our trip to Darien Lake.



Chris



edit: I didnt get any instructions:{

 

[JohnE]

Chris;



Call Dave and talk to him.



I'm almost positive I watched them run your trany on the dyno to set the shift points. Was it shipped around the 6th? I was there on the 6th getting a new trany in my truck.

The shift points were written on the trany case along with Dave's "OK"



Isn't Dave's triple lock converter awesome? I cannot believe the efficiency from idle to higher rpm. And the lockup... ...



My old converter was bad. I could over run the stator and pull out of lockup easily. (Dave noticed that, too. ) The old TC was so bad that Norb ground the friction ring off the lockup clutch piston and handed me the (rejected) turbine hub as a souvenir. The splines were very wore and would not have lasted for much longer.



I am anxious to tow with this monster, too.

 

[Hummin Cummins]

John,

That should have been mine. I'm gonna call Dave tomorrow. I got a buddy here at work to hold the throttle pedal for me. I had about 3/16 to 1/4 inch of travel left at WOT. I adjusted the tv cable now have about 1/16" of play.

1-2 shift around 18-20

2-3 shift around 25

I saw the stuff wrote on the transmission but I think the shift points wrote on there were for WOT. Those numbers matched up close to my tach. I think I just worry too much and am not used to a proper functioning transmission.



Chris

 

[98rammer]

hummin, so now are you going to be running more plate?

 

[Hummin Cummins]

hummin, so now are you going to be running more plate?

Why absofrigginlutely



My trucks now a pleasure to drive. I'm thinking about a #10. Something I can work when pulling and not have to worry about egt's. Maybe even something custom. I love playing in that 16-1800 rpm range.



I talked to dave and he said that i set my tv correctly and nothing to worry about with the quick 2-3 shift. Thats what happens at light throttle. He said we can change a spring if I want, but I dont see the need to mess with it until I test it out pulling the camper.



Chris

 

[98rammer]

just make a #0 and use your right foot to control egts more power is always better in my book Oo.



Tom

 

[HoleshotHolset]

Tom: More power is always good, but more rack travel at improper loads/RPM's is not always good.



Matt - newly re-educated on plates

 

[98rammer]

alright matt, you'll have to teach me this new info...

 

[Hummin Cummins]

Matt - newly re-educated on plates

rammer, i think it has something to do with a sled.

Not bustin on ya Matt, you got more cahones than I do to hook up



I do have a question though, I was drivin my tri-axle when I was talking to dave. He said I could loosen up the tv cable some cause the transmission makes plenty of pressure. I cant remember if he said that would make it shift quicker or later. Any ideas?



I have to call him again tomorrow anyway, there was no invoice or anything with the transmission.



His customer service so far ROCKS!!

 

[98rammer]

ah, ok. J. D. runs a #0- i don't see any problem with it. i'd run my flat plate in my truck, but i'm hesitant on the transmission and very hesistant to do the arm adjustment again matt, does it have to do with straining the pump at lower rpms? with no plate/#0 and no rack stop the pump whined like a typical hydraulic pump until the thing got up in the rpms. i didn't run it like that for long- just seemd like it couldn't push the fuel through the stock injectors.



Tom

 

[98rammer]

hummin, i think loosening it will make it shift later, but don't quote me. btw, does that thing shift locked. do you run it under stock programming or locked it up early?

 

[Hummin Cummins]

I kinda like how my truck is with the stock plate slid. I think I may need to tighten up the star wheel though, it seems a little late off the line. Lotsa smoke but kinda doggy till the boost catches up. I had one of those #8 e-bay plates. That began the demise of my transmission. That plate worked ok mid range but if you needed more pedal on a hill, anything over 1900 it would smoke like a pig and stumble like crazy, then the egts would go through the roof.



Oh, to answer your question, I have the stock programming. The dealer did the reflash for later lockup in OD. It went from locking up at 45 to 52 mph. That was worth the 25. 00. I opted to keep the stock input shaft and hub rather than the billet to save some $. I told dave I was not planning on hitting much over 275 hp or so, so he said it really wasnt needed to go with billet.



He did set it up for a future exhaust brake. What that involves I dont know. I need to talk to him again and get some paperwork for future reference.

i think loosening it will make it shift later,

I think you may be right. I might have went the wrong way. I had about 1/4" left at WOT. Logical thinking would say that lower pressure it would take longer to push the spring for the shift = later shift. I tightened it up after reading that a loose tv will cause low pressures = slipping. I take it from Dave that there is plenty of pressure. It tested 80 idle and 160 WOT if I remember what he had wrote on the transmission. (no paperwork yet)



I'm rambling now because I finally feel like I have a real truck with something to talk aboutOo.

 

[98rammer]

Originally posted by Hummin Cummins

That plate worked ok mid range but if you needed more pedal on a hill, anything over 1900 it would smoke like a pig and stumble like crazy, then the egts would go through the roof.



Oh, to answer your question, I have the stock programming. The dealer did the reflash for later lockup in OD. It went from locking up at 45 to 52 mph. That was worth the 25. 00. I opted to keep the stock input shaft and hub rather than the billet to save some $. I told dave I was not planning on hitting much over 275 hp or so, so he said it really wasnt needed to go with billet.



He did set it up for a future exhaust brake. What that involves I dont know. I need to talk to him again and get some paperwork for future reference.

on the exhaust brake i know that others will shift from 4th to 3rd locked with the exhaust brake on.



i control my lock up now, but $25 is worth it to get a later lockup. i hate how i can lock it up at 1200rpms not good for even a stock truck.



on the plate issue: it sounds like you have a fuel pressure problem or something. my truck doesn't stumble at high rpms, but it does smoke at WOT and puts the egts up there (my manifold is shrinking!).



i'm glad you're happy with your transmission. i'm stuck on DTT, but i'd probably go with GB over the others due to the fact that i've never heard anything bad about them-rumors or facts.



Tom

 

[Hummin Cummins]

Tom

My stock plate slid all the way forward works real nice. The "homemade" e-bay plate is the one that gave me trouble. I ran a dimmer switch on the floor for a while to keep the t/c unlocked until the rpms were up. I havent hooked it back up since I had the reflash done.



The real seller for me on the GB transmission was the price and the warranty. I talked to Bill K. alot and he was very helpful with the troubleshooting of my old transmission, as was Dave. My decision came down to bottom line $. I vowed not to get into any transmission vendor debates once I did get an aftermarket transmission. No cheerleading will be heard from me, but if anyone asks, I am very satisfied.

 

[JohnE]

Chris;

The smoke and lag is from the tighter efficiency converter Dave sent you. You must have noticed the engine rpms don't run away from grouns spped as quickly. Have you done a trany in gear, A/C on, and foot on brake test? You may have to up the idle speed slightly to compensate. A TST AFC spring may help with smoke, too. I assume you have the AFC housing fully forward along with your slide stock plate.



If you want to up the power and driveability consider 4k governor springs AND a #10 plate.

You really need governor spring to compliment the #10 profile in an auto pump. The 160 pumps have a notorious governor stumble that usually responds well to 4k springs.



I installed my #4 completely back in hopes of saving the trany. Well, i may have saved the trany, but as I posted, the TC was shot. My plate will be returned to stock position this weekend.

 

[HoleshotHolset]

Tom, we'll have to catch up at the cookout... . don't be bashful.....



Matt