Ok since i just paid another 300 to sponsor here , shameless plug prices and builds.
Thread Starter
LS1Tech Sponsor
Joined: Mar 2023
Posts: 1,795
Likes: 1,138
From: BERWICK PA
Ok since i just paid another 300 to sponsor here , shameless plug prices and builds. STAGE 1 = STOCK REBUILD WITH NEEDED FIXES MILD SHIFT KIT $2200 No build specs for this one .Quality stock build for stock less than 375 RWHP .
Stage 2 - Up to 500 RWHP based on a 4000 lb car or truck
New Frictions
New steels
All seals
29 element input sprag
Heavy duty sunshell
Corvette servo with band pin o-ringed at 4th oil -second servo and 4th servo . Greatly reduces leaks for 3-4 cutch oil at the pin to case area and 4th oil which I have found many times is quiet substantial. Also eliminates servo pin to servo leaks 2nd and 4th . (4 o-rings)
New Borg Pro series band
Resurfaced reverse input drum
6 friction 3-4 set with full thickness steels and custom made backing plate. Apply plate surfaced to be perfectly flat.
Custom shift kit with moderate firm shifts that are progressive to aggressive as throttle increases. (O-RINGED 4-3 AND CONVERTER REGULATOR VAVLE END CAPS ) (O-RINGED BORE PLUGS FWD/REV)
Full time overrun mod to protect sprag keeps overrun clutch on in all forward gears except actual 4th gear
Modified but not eliminated PWM circuit custom. (FIXES ISSUES WITH LEAKS (1870 CODE) AND INCREASES LOCKUP APPLY WITHOUT ELIMINATING PWM/PROGRESSIVE APPLY)
AFL valve reamed and replaced if needed after testing
Custom 2-3 shift valve not Sonnax for quicker upshifts on the 2-3
.500 boost valve set with PR set up for 200 psi max line based on factory tuning set up. Can go as high as 230psi with tune change to 99 percent max (all three lands o-ringed to prevent leaks ) (uses additional spring in boost valve to increase overall line without raising AFL)
New wiring harness and shift solenoids
New factory style pan with removable drain plug heavy duty not cheap tin.
New bushings throughout
(dual bushings in rear sungear)
This unit is suitable for every day driver with light to moderate performance and heavy duty use comes with a 1 year no-hassle warranty; its simple you break it Ill fix it. Just send it back.
PRICE = $2500 WHICH INCLUDES SHIPPING NO CORE REQUIRED TO ANY PLACE IN MAINLAND USA
Price is for 1993 TO 2006 4L60E YEAR FORWARD OF THAT PLEASE ASK FOR PRICE AS I HAVE TO CHECK PRICE AND CORE AVAILABILITY.
NO RETURN CORE REQUIRED
STAGE 3 - 4L60E BUILD UP TO 750 RWHP BASED ON A 4000LB CAR
New Frictions
New steels
All seals
29 element input sprag
Beast sunshell
Corvette servo with band pin o-ringed at 4th oil -second servo and 4th servo . Greatly reduces leaks for 3-4 cutch oil at the pin to case area and 4th oil which I have found many times is quiet substantial. Also eliminates servo pin to servo leaks 2nd and 4th . (4 o-rings)
Band /DRUM cooling mod sprays D4 oil into band gap to aid in keeping band and drum cooler . Particularly useful when in 4th at light throttle or low speed up/down 4th gear shifts at low line.
Billet Dual servo overdrive 4h
New black Raybestos Pro series band.
New reverse or reman input drum. (Actually prefer reman or turned stock drums as the new drums are actually thinner I have noted)
7 friction 3-4 set carbon alto with custom made thick backing plate and thick steels .090 . Apply plate surfaced to be perfectly flat (Note one or two steels may be .076 as drums vary but strive for .090) for better heat dissipation.
Custom shift kit with moderate firm shifts that are progressive to aggressive as throttle increases. (O-RINGED 4-3 AND CONVERTER REGULATOR VAVLE END CAPS ) (O-RINGED BORE PLUGS FWD/REV)
Full time overrun mod to protect sprag keeps overrun clutch on in all forward gears except actual 4th gear (Engine braking 1-2-3 gears even in OD position).
New valve body plate
Modified but not eliminated PWM circuit custom. (FIXES ISSUES WITH LEAKS (1870 CODE) AND INCREASES LOCKUP APPLY WITHOUT ELIMINATING PWM/PROGRESSIVE APPLY)
AFL valve reamed and replaced.
Custom 2-3 shift valve, not Sonnax, for quicker upshifts on the 2-3 (THIS MOD IS UNIQUE TO MY BUILD OR WAS BUT HAS BEEN USED AND COPIED BY OTHERS, (DRASTICALLY IMPROVES 2-3 COMAND TO SHIFT TIME)
.500 boost valve set with PR set up for 200 psi max line based on factory tuning set up. Can go as high as 230psi with tune change to 99 percent max (all three lands o-ringed to prevent leaks ) (uses additional spring in boost valve to increase overall line without raising AFL)
New wiring harness and shift solenoids
New factory style pan with removable drain plug heavy duty, not cheap tin.
New bushings throughout
(dual bushings in rear sungear) SLOTTED SUN GEAR FOR IMPROVED PLANET LUBE
Slotted fwd sun gear (INCREASES LUBE TO FRONT PLANET AND FLOWS MORE OIL INTO FRONT PLANET THEN SLUNG INTO 3-4 CLUTCH FOR SOME ADDED COOLING)
This unit is suitable for anything everyday driver to all out performance beaten on
PRICE = $2750 WHICH INCLUDES SHIPPING NO CORE REQUIRED TO ANY PLACE IN MAINLAND USA
STAGE 4 4L60E BUILD UP TO 900 RWHP BASED
Price is for 1993 TO 2006 4L60E, YEARS FORWARD OF THAT PLEASE ASK FOR PRICE AS I HAVE TO CHECK PRICE AND CORE AVAILABILITY. 700R4 ALSO AVAIABLE IN THIS BUILD CALL OR MESSAGE FOR PRICE.
NO RETURN CORE REQUIRED
ON A 4000LB CAR
New Frictions
New steels
All seals
29 element input sprag
Collared input drum re-enforcement
Sonnax smart shell
Fairbanks superior 2nd gear servo machined for use with the Sonnax 4th servo for maximum hold in 2nd and quickest apply to 3rd gear with band pin o-ringed at 4th oil, second servo and 4th servo . Greatly reduces leaks for 3-4 cutch oil at the pin to case area and 4th oil which I have found many times is quiet substantial. Also eliminates servo pin to servo leaks 2nd and 4th . (4 o-rings)
Band /DRUM cooling mod sprays D4 oil into band gap to aid in keeping band and drum cooler . Particularly useful when in 4th at light throttle or low speed up/down 4th gear shifts at low line.
Billet Dual servo overdrive 4h
New wide band (RAYBESTOS PRO SERIES )
New reverse input drum.
8 friction 3-4 set carbon alto with custom made thick backing plate. Apply plate surfaced to be perfectly flat with specially modified steel plates to aid in cooling (Plates are .076)
Custom shift kit with moderate firm shifts that are progressive to aggressive as throttle increases. (O-RINGED 4-3 AND CONVERTER REGULATOR VAVLE END CAPS ) (O-RINGED BORE PLUGS FWD/REV) (NOTE THIS BUILD SHIFTS CONSIDERABLY MORE AGRESSIVELY THAN OTHER BUILDS.)
Full time overrun mod to protect sprag, keeps overrun clutch on in all forward gears except actual 4th gear (Engine braking 1-2-3 gears even in OD position.
New valve body plate
Modified but not eliminated PWM circuit custom.
AFL valve reamed and replaced if needed after testing
Custom 2-3 shift valve, not Sonnax for quicker upshifts on the 2-3 (THIS MOD IS UNIQUE TO MY BUILD OR WAS BUT HAS BEEN USED AND COPIED BY OTHERS, (DRASTICALLY IMPROVES 2-3 COMAND TO SHIFT TIME)
5 pinion GM ONLY planets (SOME HAVE ASK FOR 4 PINIONS INSTEAD AS SOME FEEL THEY ARE STRONGER AND ONGOING DISSCUSSION, I HAVE HAD NO ISSUES WITH EITHER, HOWEVER IF YOU PREFER 4 PINION PLEASE LET ME KNOW FOR A 200 DOLLAR PRICE REDUCTON.
.500 boost valve set with PR set up for 200 psi max line based on factory tuning set up. Can go as high as 230psi with tune change to 99 percent max
New wiring harness and shift solenoids
New factory style pan with removable drain plug heavy duty, not cheap tin.
New bushings throughout
(dual bushings in rear sungear) Also slotted for better lube to rear planets .
Slotted fwd sun gear (INCREASES LUBE TO FRONT PLANET AND FLOWS MORE OIL INTO FRONT PLANET THEN SLUNG INTO 3-4 CLUTCH FOR SOME ADDED COOLING)
PRICE = $3700 WHICH INCLUDES SHIPPING NO CORE REQUIRED TO ANY PLACE IN MAINLAND USA
Stage 2 - Up to 500 RWHP based on a 4000 lb car or truck
New Frictions
New steels
All seals
29 element input sprag
Heavy duty sunshell
Corvette servo with band pin o-ringed at 4th oil -second servo and 4th servo . Greatly reduces leaks for 3-4 cutch oil at the pin to case area and 4th oil which I have found many times is quiet substantial. Also eliminates servo pin to servo leaks 2nd and 4th . (4 o-rings)
New Borg Pro series band
Resurfaced reverse input drum
6 friction 3-4 set with full thickness steels and custom made backing plate. Apply plate surfaced to be perfectly flat.
Custom shift kit with moderate firm shifts that are progressive to aggressive as throttle increases. (O-RINGED 4-3 AND CONVERTER REGULATOR VAVLE END CAPS ) (O-RINGED BORE PLUGS FWD/REV)
Full time overrun mod to protect sprag keeps overrun clutch on in all forward gears except actual 4th gear
Modified but not eliminated PWM circuit custom. (FIXES ISSUES WITH LEAKS (1870 CODE) AND INCREASES LOCKUP APPLY WITHOUT ELIMINATING PWM/PROGRESSIVE APPLY)
AFL valve reamed and replaced if needed after testing
Custom 2-3 shift valve not Sonnax for quicker upshifts on the 2-3
.500 boost valve set with PR set up for 200 psi max line based on factory tuning set up. Can go as high as 230psi with tune change to 99 percent max (all three lands o-ringed to prevent leaks ) (uses additional spring in boost valve to increase overall line without raising AFL)
New wiring harness and shift solenoids
New factory style pan with removable drain plug heavy duty not cheap tin.
New bushings throughout
(dual bushings in rear sungear)
This unit is suitable for every day driver with light to moderate performance and heavy duty use comes with a 1 year no-hassle warranty; its simple you break it Ill fix it. Just send it back.
PRICE = $2500 WHICH INCLUDES SHIPPING NO CORE REQUIRED TO ANY PLACE IN MAINLAND USA
Price is for 1993 TO 2006 4L60E YEAR FORWARD OF THAT PLEASE ASK FOR PRICE AS I HAVE TO CHECK PRICE AND CORE AVAILABILITY.
NO RETURN CORE REQUIRED
STAGE 3 - 4L60E BUILD UP TO 750 RWHP BASED ON A 4000LB CAR
New Frictions
New steels
All seals
29 element input sprag
Beast sunshell
Corvette servo with band pin o-ringed at 4th oil -second servo and 4th servo . Greatly reduces leaks for 3-4 cutch oil at the pin to case area and 4th oil which I have found many times is quiet substantial. Also eliminates servo pin to servo leaks 2nd and 4th . (4 o-rings)
Band /DRUM cooling mod sprays D4 oil into band gap to aid in keeping band and drum cooler . Particularly useful when in 4th at light throttle or low speed up/down 4th gear shifts at low line.
Billet Dual servo overdrive 4h
New black Raybestos Pro series band.
New reverse or reman input drum. (Actually prefer reman or turned stock drums as the new drums are actually thinner I have noted)
7 friction 3-4 set carbon alto with custom made thick backing plate and thick steels .090 . Apply plate surfaced to be perfectly flat (Note one or two steels may be .076 as drums vary but strive for .090) for better heat dissipation.
Custom shift kit with moderate firm shifts that are progressive to aggressive as throttle increases. (O-RINGED 4-3 AND CONVERTER REGULATOR VAVLE END CAPS ) (O-RINGED BORE PLUGS FWD/REV)
Full time overrun mod to protect sprag keeps overrun clutch on in all forward gears except actual 4th gear (Engine braking 1-2-3 gears even in OD position).
New valve body plate
Modified but not eliminated PWM circuit custom. (FIXES ISSUES WITH LEAKS (1870 CODE) AND INCREASES LOCKUP APPLY WITHOUT ELIMINATING PWM/PROGRESSIVE APPLY)
AFL valve reamed and replaced.
Custom 2-3 shift valve, not Sonnax, for quicker upshifts on the 2-3 (THIS MOD IS UNIQUE TO MY BUILD OR WAS BUT HAS BEEN USED AND COPIED BY OTHERS, (DRASTICALLY IMPROVES 2-3 COMAND TO SHIFT TIME)
.500 boost valve set with PR set up for 200 psi max line based on factory tuning set up. Can go as high as 230psi with tune change to 99 percent max (all three lands o-ringed to prevent leaks ) (uses additional spring in boost valve to increase overall line without raising AFL)
New wiring harness and shift solenoids
New factory style pan with removable drain plug heavy duty, not cheap tin.
New bushings throughout
(dual bushings in rear sungear) SLOTTED SUN GEAR FOR IMPROVED PLANET LUBE
Slotted fwd sun gear (INCREASES LUBE TO FRONT PLANET AND FLOWS MORE OIL INTO FRONT PLANET THEN SLUNG INTO 3-4 CLUTCH FOR SOME ADDED COOLING)
This unit is suitable for anything everyday driver to all out performance beaten on
PRICE = $2750 WHICH INCLUDES SHIPPING NO CORE REQUIRED TO ANY PLACE IN MAINLAND USA
STAGE 4 4L60E BUILD UP TO 900 RWHP BASED
Price is for 1993 TO 2006 4L60E, YEARS FORWARD OF THAT PLEASE ASK FOR PRICE AS I HAVE TO CHECK PRICE AND CORE AVAILABILITY. 700R4 ALSO AVAIABLE IN THIS BUILD CALL OR MESSAGE FOR PRICE.
NO RETURN CORE REQUIRED
ON A 4000LB CAR
New Frictions
New steels
All seals
29 element input sprag
Collared input drum re-enforcement
Sonnax smart shell
Fairbanks superior 2nd gear servo machined for use with the Sonnax 4th servo for maximum hold in 2nd and quickest apply to 3rd gear with band pin o-ringed at 4th oil, second servo and 4th servo . Greatly reduces leaks for 3-4 cutch oil at the pin to case area and 4th oil which I have found many times is quiet substantial. Also eliminates servo pin to servo leaks 2nd and 4th . (4 o-rings)
Band /DRUM cooling mod sprays D4 oil into band gap to aid in keeping band and drum cooler . Particularly useful when in 4th at light throttle or low speed up/down 4th gear shifts at low line.
Billet Dual servo overdrive 4h
New wide band (RAYBESTOS PRO SERIES )
New reverse input drum.
8 friction 3-4 set carbon alto with custom made thick backing plate. Apply plate surfaced to be perfectly flat with specially modified steel plates to aid in cooling (Plates are .076)
Custom shift kit with moderate firm shifts that are progressive to aggressive as throttle increases. (O-RINGED 4-3 AND CONVERTER REGULATOR VAVLE END CAPS ) (O-RINGED BORE PLUGS FWD/REV) (NOTE THIS BUILD SHIFTS CONSIDERABLY MORE AGRESSIVELY THAN OTHER BUILDS.)
Full time overrun mod to protect sprag, keeps overrun clutch on in all forward gears except actual 4th gear (Engine braking 1-2-3 gears even in OD position.
New valve body plate
Modified but not eliminated PWM circuit custom.
AFL valve reamed and replaced if needed after testing
Custom 2-3 shift valve, not Sonnax for quicker upshifts on the 2-3 (THIS MOD IS UNIQUE TO MY BUILD OR WAS BUT HAS BEEN USED AND COPIED BY OTHERS, (DRASTICALLY IMPROVES 2-3 COMAND TO SHIFT TIME)
5 pinion GM ONLY planets (SOME HAVE ASK FOR 4 PINIONS INSTEAD AS SOME FEEL THEY ARE STRONGER AND ONGOING DISSCUSSION, I HAVE HAD NO ISSUES WITH EITHER, HOWEVER IF YOU PREFER 4 PINION PLEASE LET ME KNOW FOR A 200 DOLLAR PRICE REDUCTON.
.500 boost valve set with PR set up for 200 psi max line based on factory tuning set up. Can go as high as 230psi with tune change to 99 percent max
New wiring harness and shift solenoids
New factory style pan with removable drain plug heavy duty, not cheap tin.
New bushings throughout
(dual bushings in rear sungear) Also slotted for better lube to rear planets .
Slotted fwd sun gear (INCREASES LUBE TO FRONT PLANET AND FLOWS MORE OIL INTO FRONT PLANET THEN SLUNG INTO 3-4 CLUTCH FOR SOME ADDED COOLING)
PRICE = $3700 WHICH INCLUDES SHIPPING NO CORE REQUIRED TO ANY PLACE IN MAINLAND USA
__________________
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Last edited by mrvedit; Feb 21, 2026 at 02:25 PM. Reason: Made it all black for readability
Thread Starter
LS1Tech Sponsor
Joined: Mar 2023
Posts: 1,795
Likes: 1,138
From: BERWICK PA
Not complete see other thread as seem LS1TECH has shortened the word character limit
https://ls1tech.com/forums/automatic...ates-more.html
https://ls1tech.com/forums/automatic...ates-more.html
__________________
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Last edited by mrvedit; Feb 21, 2026 at 02:21 PM. Reason: Added link to Frank's main build thread