Pulling Transmission - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 03-22-2007, 03:57 PM Thread Starter
 
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Cool Pulling Transmission

this a question i have ask sevaral times to different people and i have a hard time to decide so hang in there i'll catch on one day.....anyway to the question......what is a good tranny upgrade or after market transmission that will handle up 700 to 800rwhp and not have to make a loan at the bank to buy it,not that the truck has that much horse power but by next year this time i hope to be in the neighberhood of 600rwhp..any imput would be appreciated....oh yes that truck is the 05 LLY dually that is in my sig
:thanks: james
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post #2 of 6 (permalink) Old 03-22-2007, 06:04 PM
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James:

Is your transmission stock other than the Bully Dog shift kit?

Given stock TCM programming, the 5-speed Allison's stock convertor and C2 clutch will only support up to 700 ft lbs. rear wheel torque. Power levels up to approximately 900 ft lbs. rear wheel torque will require at a minimum replacement of the converter and C2 clutch modifications.

Consider at a minimum installation of a triple disk convertor and complete Transgo kit. Minimum cost will be $3,000.00 +.

If I understand correctly, the Bully Dog shift kit has an issue. The increased main line pressure it's trim valves provide is affected by the Allison's adaptive learning feature. If you do nothing else, you may wish to consider replacing the Bully Dog shift kit with the Transgo shift kit's valve body modifications.



- Steve

2004.5 2500HD CCSB, 4x4, D/A, tow tune, TD-EOC

Goodies occupying space in garage: Corsa full exhaust, Isspro gauges, KB CAI

2006 Tahoe Transport 33WTB; 14,000 lbs.
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post #3 of 6 (permalink) Old 03-22-2007, 09:05 PM Thread Starter
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yes the only thing i have done to the tranny is the shift kit.when i do the the tranny proper like i'll get rid of the bully dog shift kit..a quick question how is the ppe,sun coast and ats tranny kits compared to the transgo kit you mentioned and about how many horse will the transgo kit handle?sorry for all the questions
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post #4 of 6 (permalink) Old 03-22-2007, 11:13 PM
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Quote:
Originally Posted by TYREBOYZ_DMAXIN
how is the ppe,sun coast and ats tranny kits compared to the transgo kit you mentioned and about how many horse will the transgo kit handle?
I'm technically challenged regarding transmissions, so I'll defer technical questions to our technical members.

This will get you started. In general terms, modification of the Allison may include the following:


1. valve body modifications
2. C2 clutch apply modifications
3. replacement clutch frictions & steels
4. replacement torque converter lock-up valve
5. replacement filter / pan
6. replacement torque converter
7. proprietary modifications


These components are offered by ATS, PPE and Suncoast in varying combinations. The kits are usually expressed as Stage II, Stage III, Stage IV and Stage V, Stage V being the most robust.


http://www.atsdiesel.com/ATSWebsite/...nsmissions.asp
http://www.pacificp.com/index.php?ma...dex&cPath=2_15
http://www.suncoastconverters.com/gmc/gm_products.html


The Transgo kit includes items 1 & 2 and will support up to 500 rear wheel horse power if combined with a replacement torque converter.


http://www.ttspowersystems.com/GM_tranny_kits.html

- Steve

2004.5 2500HD CCSB, 4x4, D/A, tow tune, TD-EOC

Goodies occupying space in garage: Corsa full exhaust, Isspro gauges, KB CAI

2006 Tahoe Transport 33WTB; 14,000 lbs.
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post #5 of 6 (permalink) Old 03-23-2007, 12:35 PM
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since your close to Michigan, give me a call. I'll build you as much as you want or dont want.

Eric Merchant
www.Merchant-Automotive.com
Zeeland, MI
1-866-399-7169
ASE/GM Master Certified
AC Delco Independent Repair Center
Authorized Suncoast dealer/installer
State of Michigan Licensed Repair Facility
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post #6 of 6 (permalink) Old 03-26-2007, 09:37 PM Thread Starter
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i going with the ppe stage IV or maybe the stage V,thanks guys for all the info and help....it's been real
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