The difference is the degree of holding power. Both will firm up your 3-4 shift. The Superior Fairbanks is more extreme than the Sonnax and is usually more appropriate for the dragstrip. The Sonnax is a great in-between (between stock and Superior). Read about all the servos here.Originally Posted by Chri$09
I'm running both Sonnax servos with the Sonnax chromemoly servo pin and have no complaints. The Sonnax 2nd gear servo is a nice improvement over the Vette servo I was using before.
2006 Z71 Tahoe - Silver Birch Metallic
GO: Wheatley 93 street tune, TR220-112 cam, PAC 1218 springs, Comp rocker trunions, U/D pulley, LS2 timing chain, JBA headers, cat delete, Magnaflow catback, AEM CAI, 180º stat, ported TB, Circle D 3200, TransGo HD2, billet servos, Tru-Cool 40K, LS6 valley cover, and many more...
SHOW: Ford keys, 2" spacers, Bilstein 5100, SS cluster, HIDs, LEDs, and many more...
do i need the pin? if i get the sonnax 4th gear and the orgean trans 1-2 servos?
2009 CHEVROLET 1500 with a MONSTER 4.8 between the frame rails!!
Tuned by LSX Powersports ~ 4.10 ~ JBA Shorties ~ 4" Inlet/Outlet Spintech ~ Airaid Coldair
CST 3.5" Spindles ~ Camburg Upper Control Arms ~ 2.5" CCM ~ FFR Tie Rods
Full Throttle Suspension 3" Lift Blocks ~ Soft 8s wrapped in LT285/70/17 Silent Armors
No pin for anyone and the Vette stuff is only 2nd. All the old pistons I've removed had the same numbers on them and my Denali from 2003 has an M30. I've never been in it but it would not surprise me if it had 5-pinion planets. To answer the question, yes...an 08 or 07 or...can have a 4L60E no matter what anyone here says no matter the year or engine size or vehicle weight IF you call all M30's 60's, all M32's 65's, and all whatevers 70's. The fact remains there is hardly a difference in strength between a 60 and 70...there are more differences by year and what are common failures. Buy the Vette kit from OPT off eBay (cheaper) and get a billet 4th piston somewhere if you want that.
damn i love great actual tech know how! will do and ill bring the shift kit buy for that to be installed. thats all you man! lol
2009 CHEVROLET 1500 with a MONSTER 4.8 between the frame rails!!
Tuned by LSX Powersports ~ 4.10 ~ JBA Shorties ~ 4" Inlet/Outlet Spintech ~ Airaid Coldair
CST 3.5" Spindles ~ Camburg Upper Control Arms ~ 2.5" CCM ~ FFR Tie Rods
Full Throttle Suspension 3" Lift Blocks ~ Soft 8s wrapped in LT285/70/17 Silent Armors
Your 03 Denali definitely has 5 gear planetary set. My C3 has it and I believe it has the M30 code as well. In 2001 they called it a 4L60eHD.
Go Nathan!!!!!
So this sonnax servo is better then the vette servos??
so they claim but if im understandin nathan you can't tell the difference between the two.
2009 CHEVROLET 1500 with a MONSTER 4.8 between the frame rails!!
Tuned by LSX Powersports ~ 4.10 ~ JBA Shorties ~ 4" Inlet/Outlet Spintech ~ Airaid Coldair
CST 3.5" Spindles ~ Camburg Upper Control Arms ~ 2.5" CCM ~ FFR Tie Rods
Full Throttle Suspension 3" Lift Blocks ~ Soft 8s wrapped in LT285/70/17 Silent Armors
I hope I don't have to see inside of that thing...the 6.0 AWD half ton 60E is a bastard to get out compared to all others because of the goofy exhaust. Guess it could use new T/C fluid though at nearly 90K miles. It's been 2400 miles in 2010!
Yeah, I had mine out remember... you are right the exhaust wasn't fun. I wish I had had LTs on hand to go back with.
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