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Thread: 4l70e any better ?

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  1. #1
    Join Date
    Jul 2007
    Location
    eastern shore of virginia
    Posts
    446

    4l70e any better ?

    does anyone know how the tranny in these TBSS's are? it says its heavy duty, and the being a 70 instead of a 65 must mean its slightly stronger. but i have blown every tranny in every chevy I've had. i plan on getting decent power out of this thing. so far my plan includes LT's ORY and cat back, with intake and diablo predator. but i don't want the tranny going out. although it does have a 100k 5 year warranty on power train.
    2008 Trailblazer SS LS2, K&N CAI, flowmaster 40 series, hp tuned
    2004 Trailblazer 4.2, K&N CAI, hp tuned
    2002 Camaro Z28 5.7 ls1, lid, slp loudmouth, bbk longtube headers, ory, hp tuned, tr224 cam, ported 243 heads, moser 12 bolt w/ 3.73's and full spool, and a 100 shot just in case. 463whp, 458 wtq 11.32@ 120 1.52 60' on motor no spray times yet

  2. #2
    Join Date
    Aug 2005
    Location
    Spring, Texas
    Posts
    527
    I blew mine in my tbss after about 60K miles. IMO Not any stronger.
    06 TrailBlazer SS LS2 4.10's

    02 SC StepSide Factory Orange
    Full Bolt-On 370 - Little Cam- Victor Jr Intake -Worked 5.3 Heads - 4.56's - Built 60E - Circle D 4000

    07 CTS-V CAI, GM Performance Exhaust, Ported TB, Coil Overs

  3. #3
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    Yup, you are right...the tranny is the only weak point on that whole truck. Just run it like you wanna...it will eventually give out. Use that warranty to it's fullest extent while you are still covered. Hopefully, you might be able to bargain with the local dealer to build it stronger if it keeps on breaking...

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

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