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  1. RanchWelder

    Cutting hole in floor to replace fuel sender

    At the risk of sounding off-topic... Have you tried replacing the $25.00 fuel pump relay? Mine went bad the first week I owned the truck. The fire-wall mount for the relay had a spot for 2 of them. Now I run with a new spare next to each other. If it's bad you will not hear the pump when the...
  2. RanchWelder

    Cutting hole in floor to replace fuel sender

    If you take out the tank first, so you don't start a fire should the o-rings be leaking gas or the vent decides to burp, you'll go through the pain once and have the handy door down the road. My tank straps required new rubber tank rub protection. The cardboard composite crap was ruined and...
  3. RanchWelder

    Steering column compatibility

    It has a couple older part numbers. Part Number:26049186 Replaces:19133709, 26113917 According to: https://www.chevroletpartsdirect.com/oem-parts/gm-turn-signal-switch-cancel-cam-position-plate-26049186 If you search eBy for those numbers, instead of the one I pictured in my previous post...
  4. RanchWelder

    Steering column compatibility

    https://w...
  5. RanchWelder

    4L80E Information Thread

    Yup. Half way into or out of gear is bad for the system. If your reverse piston is cracked, due to reverse to drive fast shifting, such as plowing, your reverse piston cup might be cracked and leaking or failing to move accordingly due to a shift in geometry of the reverse 3rd piston actions...
  6. RanchWelder

    Vortec bottom end/TBI top end: timing?

    Here. Look up my sig and read my build details. Take what works for you and do what you like. The cover on my 1998 Roller block WAS plastic and is now the steel cover from my 1987 reman engine. I bought taps to drill the extra bolt holes the old steel cover uses and never needed them. They seal...
  7. RanchWelder

    1987 Blazer Front Suspension Upgrade, Springs, Bushings, Hangers, Steering Box/Shaft

    My innitial post regarding perch spacing was wrong. Ended up moving the axle back the extra inch on the perches. The diff cover was clear with the added spring height and 1/2 half ton added leaf. This really helped with shock mount relocation and drive line angle/length. The OEM overload...
  8. RanchWelder

    Options for tuning of Gen1 TBI in 2023

    Forgot I left this thread hanging without a response. I went with Brian Harris at TBIChips: Harris Tuning The MOATS systems and the software and buying a Microsoft computer and downloading freeware burned me out. I'm not a chip burner for life, I'm a hotrod and transmission mechanic. I'm a nerd...
  9. RanchWelder

    4L80E Information Thread

    Yah. I used the similar plate for the NP208. Like I mentioned, buy the hardened stud hardware kit, cuz the soft steel studs are soft. The main concern is to align and settle the entire driveline and shafts during the install of the 3/8" spacer plate. As your picture shows, the centering ring...
  10. RanchWelder

    4L80E fresh rebuild, no reverse. **UPDATED DEEP PAN MOD ISSUES**

    Here's the solution for my build. https://shop.sd-concepts.com/4l80e-rear-feed-filter-and-transmission-pan/ This design will prevent the fluid from cavitations at a steep incline or under hard acceleration for a racing application. The Pan I selected was an extra heavy gauge steel pan from...
  11. RanchWelder

    4L80E Information Thread

    If it's a 4WD, my NP208 required I rip out the 27 spline input to the T-Case, replace with a 32 spline. It requires ripping the T-case down to the bottom and rebuilding the entire stack. Took me three solid Tries, There's not much for manuals and quality pictures, so take a lot of pictures as...
  12. RanchWelder

    700R4 Information Thread

    I'm not certain a buna oil o-ring for oil will work? You might have to try a silicone o-ring that's tight to the threads and seals when the bolt is tight to prevent the transmission fluid from eating a normal oil based oil ring? If I'm wrong please let me know, Nick? RTV turns to mush as soon...
  13. RanchWelder

    305 to 427

    Compre-HENDING STANDARD AND REVERSE ROTATION MARINE https://enginepro.com/understanding-standard-and-reverse-rotation-marine/ :popcorn:
  14. RanchWelder

    4l80e conversion in 1985 suburban. What parts do I need?

    There's an usually green or red o-ring inside the transmission case housing to the electrical connector plastic. The connector can be re-pinned for different models. This requires the pins not being used, be very well sealed from fluid. One mistake here and it leaks. Badly. Like the end of...
  15. RanchWelder

    4l80e conversion in 1985 suburban. What parts do I need?

    Or the converter was bad from the start. The converter cannot be locked up when it is not supposed to be. If the connector had fluid inside the pins, your converter was ruined because of manu8facturer defect. If it was shorted out, it locked up when it was not supposed to. The connector leak...
  16. RanchWelder

    454 shake and noise troubleshooting

    Take it back ASAP. If the oil change was too late and the oil pump screen or lifter got plugged up and wiped, re-adjusment will just further collapse the lifter and eat the cam. If your pump was starved at all, the pump can get wiped internally. Pump metal can then plug a lifter. Tick tic tic...
  17. RanchWelder

    305 to 427

    :popcorn:
  18. RanchWelder

    Stockvs Ram horn manifolds

    Cool
  19. RanchWelder

    4l80e conversion in 1985 suburban. What parts do I need?

    :sad72:
  20. RanchWelder

    Stockvs Ram horn manifolds

    This might want to be avoided?: After watching this gentleman, fumble to save a few bucks, ask yourself if forcing the castings back in shape is worth it? Can you imagine the side load pressure on all 6-3/8" manifold bolts? Cannot be good witha few extreme cooling cycles on those heads. You...
  21. RanchWelder

    Stockvs Ram horn manifolds

    Couldn't fit these pics into the previous post. OEM Manifolds: The frame is no where near as narrow as the Blazer. Stainless? (Every manifold eventually shows signs of rust, even stainless, unless it's 316 $$$$$). You guys tell me what it is? Very cool bends. The only new engine part is...
  22. RanchWelder

    Stockvs Ram horn manifolds

    Back in the days of fuelie heads, Rams were the best bang for your buck. The way they point downwards for a 4wd and routing the wires underneath just seemed a bit odd to me for my Blazer. We have a lot of stock manifolds get warped here in MT due to extreme cold, so heavy duty castings are...
  23. RanchWelder

    Stockvs Ram horn manifolds

    IF you can fit the 2-1/2"version RAMs, then OK......... Big IF. The proper Corvette versions with 2-1/2 are un-obtanium. Your mileage might vary. On several truck frames, where the frame is narrow at the engine bay, RAMS might not even fit, if you can find them. The starter could get heat...
  24. RanchWelder

    Sup

    Awsome!
  25. RanchWelder

    New from Iowa

    Drag Racing certified racing bucket seats. NHRA rated Cage, fire surpression, emergency shut-off, race certified plumbing lines everywhere and a $35K engine, with a $4500 (min) transmission. You got this!

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