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  1. J

    4.3 to 5.7 swap - No Brake Light Relay/ Fuse on swapped Harness

    My son has a '97 Silverado w/ 4.3L, we swapped it for a '98 Suburban 5.7L Engine and Harness, Now that its installed, Runs good, but we have no brake lights, all other lights work just fine (Parking/ Reverse, etc). Comparing our original Silverado Harness/ Fuse Box to the swapped Suburban...
  2. J

    Will a 2008 4L60e Retrofit in place of a 2003?

    I have a 2008 4L60e with ISS and 15 pin connector. Can this Trans. fit into a 2003 Silverado and operate correctly. I would think as long as the Trans is a complete 2008 unit (Matching Pump, Input Drum, Valvebody, etc), it would just swap into the vehicle in place of the earlier 2003 model...
  3. J

    4L60e Case/ Valvebody Interchange

    I have a '99 4l60e Transmission with a broken case around the Servo snap ring area causing a leak , I swapped everything over to a 2002 4L60e Case. My question is, the Valvebody is stamped 98, now the new case is a 2002, what Valve body gaskets do I use, xx-99 or 2000-up gaskets?
  4. J

    4L65E Flare on 2-3 Shift

    I rebuilt a 4L65E Trans, that someone had pulled from a Jeep, but was putting it in an '05 Escalade. Never seen the original Escalade Trans but the one I rebuilt had no Input Speed Sensor on the pump. He installed it and called me to say 1st is fine, but 2nd and 3rd gears flare about 500 rpm...
  5. J

    10 or 13 Vane 4L60E Pump?

    I'm building my 2nd 4L60e Trans. This is going behind a '97 LT1 5.7L that I just got back from the machine shop. This Trans. had a 10 vane pump in it, I have a complete 13 vane pump in my spare parts bin. Which would be best to use for this build? I did install a normal orange box Transgo Shift...
  6. J

    4L60E Output Shaft Sleeve Needed?

    I just got a 4L60E that I’m starting to rebuild to mate with a Vortec 5.7L, the output shaft has a sleeve on it inside the tail housing, can I just remove the sleeve and use the shaft without it? My truck doesn’t use the sleeve on my current transmission that I rebuilt last month.
  7. J

    4L60E Front Ring Gear Question

    I have a 1997 4L60E with a Front Ring Gear assembly that uses a washer, can I upgrade to the assembly that uses a bearing without any other changes.
  8. J

    Trans Pump Spring O-Rinf

    I disassembled my 4L60E transmission pump last night and I noticed a spring looking O-ring on the floor, in my diagrams I don’t see anything like that in the transmission pump. Does anyone know where this may go?
  9. J

    Input Shaft Swap

    in another post I was asking about a used 4L60E I bought that had a different input shaft then the one currently pulled from my ‘97 C1500 V6. After reading alot of forums, I currently have a 298mm with pilot tip and the used 4L60E I bought has a 245mm. I have the trans apart that I just bought...
  10. J

    4L60E Output Shaft Stuck

    I have my 4L60E just about apart but I cannot pull the output shaft out of the Trans, it’s as if the Reaction Gear is pressed into the output shaft, i tried everything it will not move. Do I need to press it off?
  11. J

    4L60E Input Shaft Difference

    I have a 1997 Chevy 4.3l V6 C1500 2wd extended cab pick up truck with a 4L60E (M30) transmission. I pulled the current transmission because it slipped horribly when accelerating and just bought a used GM Goodwrench rebuilt transmission with about 80k miles on it for $200, looking at both of...

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