Search results

  1. P

    4L80E rebuild for 1100hp questions

    Yeah the .004 feeler gauge was the key. Lip wizard didn't allow it to line up perfectly. Hopefully they will make it right an pay for return shipping also. Probably hoped that no one would notice lol. Do you happen to have a depth measurement on the rear stator bushing? Also is there any...
  2. P

    4L80E rebuild for 1100hp questions

    Replaced the lip seals on the 4th clutch housing and piston using this video. They key is the .004 feeler gauge. Using a different thickness didn't work.
  3. P

    4L80E rebuild for 1100hp questions

    So I ordered a forward drum and asked the seller to confirm it was good which they did. Here's what I received. lol sending this one back. Seller promised it would not be worn....
  4. P

    4L80E rebuild for 1100hp questions

    Nice tool! I’ll check it with new rings on the shaft and see if the rings get messed up.
  5. P

    4L80E rebuild for 1100hp questions

    I have the "iGaging 12" Beveled Straight Edge Hardened Steel Accurate to 0.001"/12" 36-012K" off ebay. Is the drill damage in post 68 ok?
  6. P

    4L80E rebuild for 1100hp questions

    I drilled too far in the pump. Not much room for error when enlarging that hole. Is this going to be OK once I debur or is this a problem? I see that the washer isn't flush. The new washer gets pushed in with a press from the top, but you have to be accurate and get it put in at the same depth...
  7. P

    4L80E rebuild for 1100hp questions

    The ASTG manual says to place a straight edge across the pump body and measure pump gear to face clearance with a feeler gauge. Proper gear to face clearance should be .0007 to .0028 What other clearances do I need to be mindful of not mentioned in the manual. Pocket crescent? I ask because I'm...
  8. P

    4L80E rebuild for 1100hp questions

    Aren't late 4L80E waves so thin that when they wear they can get captured in the flush groove of the forward drum? In a performance application even with a late 4L80E bonded piston, why not run a thick steel in it's place? If using a wave, why not a TH400 since they are thicker and less likely...
  9. P

    4L80E rebuild for 1100hp questions

    I had forgot to ask, which bushings do you use loctitie on? Just the stator and the sonnax no walk out? I don't have bushing for the 05 tail housing (066 in diagram above) as that didn't come in the 13 piece kit, so I'll need to get that one also.
  10. P

    4L80E rebuild for 1100hp questions

    I see in an old post of yours the answer to the question! “Measure between the Pressure Plate & the last Friction, The Pressure plate rest on the ledge in the Drum.....So, measuring between the snap ring & pressure plate will give false readings. Leave the Forward Hub out while checking...
  11. P

    4L80E rebuild for 1100hp questions

    Those pics are most helpful! Thanks again for posting those and for answering all these questions! What about no wave in the direct and a early TH400 piston that’s been machined along with high rate springs for use in that 36 super drum? Jakes performance said since i’m only shifting at 6700...
  12. P

    4L80E rebuild for 1100hp questions

    It's coming along! More parts ordered today. Some additional comments/questions: 1. It's looking like a new forward drum 34554EA might actually be the cheaper option depending on machine costs. Do you use green loctite 640 with the sleeve when you machine yours? 2. Got the holes drilled that...
  13. P

    4L80E rebuild for 1100hp questions

    Thanks again Chris! Your knowledge on this application is very much apricated!
  14. P

    4L80E rebuild for 1100hp questions

    So with regards to measuring endplay, per some of your notes in other threads: Checking Forward Hub to Direct Drum end play, Stack the gear train up to the Direct drum, Place the Forward Hub over the Main Shaft, Hold the forward hub down with your palms & lift the direct drum with your...
  15. P

    4L80E rebuild for 1100hp questions

    Ya someone had mentioned "sun gear oil mod" so I'm not exactly sure what they mean. I'll find out. Yep, only looks like 2 holes. I'll get it drilled and get a 4 tang metal washer 34268 https://bobistheoilguy.com/forums/attachments/img_2689-jpg.34487/
  16. P

    4L80E rebuild for 1100hp questions

    Is the sun gear mod worth doing? https://i1115.photobucket.com/albums/k549/oldyukon/sungearwithlubeslots.jpg
  17. P

    4L80E rebuild for 1100hp questions

    What about enlarging the feed passage on the center support from .067 to 0.125 with drill bit? I had forgot to ask about that. (see image below) Also Jake recommends to drill a bleed release hole in the direct drum 0.050 - 0.060" if using his brake. I forgot to list that as one of the holes to...
  18. P

    4L80E rebuild for 1100hp questions

    I just realized where the confusion is on the intermediate drum setup. The plan is to order jakes 36 element sprag aluminum direct drum but I don't know if he makes them to be used with stock size intermediate frictions/clutches. I plan to ask. He may very well use FORD clutches. The outer race...
  19. P

    4L80E rebuild for 1100hp questions

    What about the direct clutch pressure plate? Looks burnt in the pics. Replace? The forward clutch pressure plate doesn’t look too bad.
Back
Top Bottom