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  1. NickTransmissions

    4L80E Information Thread

    Good question. I have a couple inquiries out to some builder/tuner friends of mine so will respond as soon as I hear back (I dont do tuning yet). Meanwhile, others may chime in as well beforehand...
  2. NickTransmissions

    Should I replace?

    One should have been included in your paper and rubber kit aka overhaul kit - perhaps double check....Also, if the 2-3 acc piston you have is plastic, replace it with an aluminum one. If you still cant find it, any local transmission parts supplier will have one for you.
  3. NickTransmissions

    th400 clutch drum steels /

    Ive done it numerous times over the years, never had any issues with performance, function or reliability. If they do have a difference in friction coef, it's not material based on my own personal experience - perhaps yours was/is different...
  4. NickTransmissions

    th400 clutch drum steels /

    Sure, no reason you couldnt. Proper clearance is much more important vs mixing steels with/without coatings . That said, kolene-coated steels arent generally needed in a TH400 unless you're doing something really heavy duty-oriented.
  5. NickTransmissions

    4L60E Information Thread (Includes 4L65/70/75)

    Bumping this thread with a new video on 700R4 and 4L60E Forward Drum Repair...The most common pattern failure, by far, is the 3-4 clutch pack burning up...The primary reason for this in my view, is leaks developing at the base of the input shaft where it's pressed into the drum...Over time...
  6. NickTransmissions

    Help diagnose squeak/squeal?

    Get the truck up on all four jack stands (or a lift), put the key on, engine off thn shift the trans into neutral. Then go under the vehicle and spin the drive shaft clockwise as it would spin when in Drive - if you hear squealing sound coming from the transmission, record it the post it to...
  7. NickTransmissions

    tranny mount/crossmember- urgent help needed

    Your local pick and pull junk yard.
  8. NickTransmissions

    4L80E Clearance Issues?

    I'm not Bextreme but if you can tell me how you plan on using the vehicle, engine power, frequency of high rpm use, frequency of heavy towing/hauling (if any), i can tell you what transmission, of the ones listed above, will meet your needs, given you're weighing ease of installation...
  9. NickTransmissions

    Should I replace?

    Hmm..not likely you completely burnt it up as described by failing to check fluid level, unless you have reason to believe it was leaking and low to begin with. I ask as the forward clutch is always applied when you're in a forward pattern range position (Drive, D2 and D1 aka Manual Low) so it's...
  10. NickTransmissions

    Th350 spews fluid

    Do you hear any pump whine or other unusual noises or experiencing drivability symptoms? If not, it shouldn't hurt anything to continue driving it...some fluid may vent from the tube on the top of the case as it relieves the excess. Also, please quote my post when you reply - I don't get...
  11. NickTransmissions

    Th350 spews fluid

    By how many quarts (or fractions of a quart if less than one) did you overfill the unit?
  12. NickTransmissions

    Should I replace?

    @kenneth1669 - Why did the forward clutch get so burnt up like that? What was the direct cause?
  13. NickTransmissions

    Should I replace?

    Take the piston out of the forward drum then thorougly clean and inspect it. Once you have done so, if there is no structural damage, bluing or other concerns like worn input shaft splines, it can prob be reused. For your reference...
  14. NickTransmissions

    700R4 TCC Lockup Issues

    Check for engine vacuum leaks, wiring concerns, etc. If no issues found, drop the pan and replace the transmission's internal wiring harness which will have a new TCC solenoid.
  15. NickTransmissions

    transmission oil change

    Live with it. That's mostly normal for those units.
  16. NickTransmissions

    4L80E Clearance Issues?

    Both should fit without physical mods if a 700R4 or TH400 is now installed; I'd do a 4L80E as you end up ahead in terms of durability and strength. Especially if you want to upgrade the engine in the future, the 4L80E will be able to handle anything up to 600 hp as-is while the 65E will need...
  17. NickTransmissions

    TH 400 needed

    Give me a breakdown of the parts and their respective prices that add up to roughly $1,000 and I'll let you know if it's in the ball park or if you're missing or under-pricing anything. Keep in mind the unit would be going behind a 383, not a stock 350 from the 80s...
  18. NickTransmissions

    700R4 started shifting really high RPM

    Yep, some of those 6.2Ds had the 700R4s...The governors came with slightly heavier weights and springs to promote earlier shift points but I don't think anything else about the diesel units are different than the V8 gas versions. TC may stall a little lower as well but that's it AFAIK.
  19. NickTransmissions

    TH400 Slipping When Warm - Chunks in Oil Pan

    You're welcome. Looks like a combination of bronze thrust washer which sits on the front side of the rear planet and front/rear planetary teeth but hard to tell from the pictures...Let us know what happened when you open it up...Also, gear train failure (if that is what it turns out to be) in an...
  20. NickTransmissions

    TH400 Slipping When Warm - Chunks in Oil Pan

    Yank it out and overhaul it! Debris like that in the pan = rebuild 100% of the time. check out my TH400 Information Thread for video tutorials, parts lists, tips/pointers and additional resources to help you with the overhaul.
  21. NickTransmissions

    TH 400 needed

    $2600 seems in the right neighborhood for a 700R4 behind a 383, and I've hand customers spend a lot more than that to get them to the point they're survivable at 383/Big Block power and torque levels...Whether you thought it was a stupid idea to dump $2600 into a 700R4 is another matter but the...
  22. NickTransmissions

    700r4 pump noise

    Amazon - search 'Transmission Pressure Gauge' ... Gearwrench and Matco have nice ones that are available on there. Test with the TV Cable connected and adjusted. You may or may not have to further adjust after the initial pressure test. Read through these instructions to familiarize yourself...
  23. NickTransmissions

    700r4 pump noise

    Noise from the pump usually indicates problems. Debris on the dipstick is most definitely NOT normal. The gray paste is actually a bi-product of distillation of the transmission fluid itself. Perform a line pressure test once you get it filled back up - you need to do this anyway if you...
  24. NickTransmissions

    700r4 question

    How old is your TV cable? Has it ever been replaced as long as you have owned the vehicle?
  25. NickTransmissions

    700r4 question

    Taking off from a stop in 2nd would be problematic but if you're not coming to a complete stop, still rolling then you may or may not downshift back to first. You can check the governor as well as do a line pressure test to see if anything odd shows up (governor valve should move freely when you...

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