700r4

  1. C

    Putting a 95 harness in a 90

    I’m thinking about doing an interior swap from 1990 interior to 1995 interior and I would have to put a 95 harness in now I know that most of everything would work but my 90 has a 700r4 and 93 and up had 4l60e which is electronicly controlled would that cause any issues?
  2. titoparra91

    Help with limitation of rpm to 350 vortec/tbi + 700r

    Hi, I’m new here and need some help. I have a 1994 Yukon GT 4x4. The vehicle originally had a 350 TBI with a 4L60E transmission, but now I’m running a 350 Vortec with the 350 TBI intake (I know it’s not ideal because it restricts airflow). I’m also using a 700R transmission with a TV cable for...
  3. J

    Help Needed with 700R4 Transmission Issues on 1992 Chevy Silverado K1500

    Hey guys, I’m having some issues after installing a 700R4 transmission in my 1992 Chevy Silverado K1500 (single cab, 4x4). Everything bolts up fine and the shifter inside the truck goes through all the gears—Park, Reverse, Neutral, Drive, etc. But once I let off the brake and hit the gas, the...
  4. J

    Crank No start No fuel

    1991 Chevy k1500 RCSB 350 TBI 4l60 Parked one night and didn't start next morning, here's a list of everything I've replaced. Battery Starter + Shims Fuses Air filter Fuel Filter TBI Gaskets Distributor Cap Distributor Rotor Spark plug wires Gapped Spark plugs Oil + Filter (Mobil One 10W-30...
  5. Colossians32324

    700r4 TV cable adjustment

    Hello Gentlemen, I'm trying to adjust my TV cable and determine if everything is functioning correctly. 305 and tranny are originally together. Edelbrock 1406 carb. When I push the d button the fine tuning thingy that is suppose to "click" when going WOT just shoots out completely. Is that what...
  6. MotoMex25

    700R4 ATSG "Upgrade Enhancements"

    Hello All, I have recently found myself needing to rebuild my 700R4. I found a manual by ATSG laying out all of the design changes made to the 700R4 and 4L60s. According to the manual (LINKED BELOW), all 4L60 designs enhancements can be retrofitted to the OG 700R4s (to my understanding). Does...
  7. W

    700R4 Rebuild

    About to drop my 700R4 off to get rebuilt and wanted to make sure I wasn't missing anything. This will be going into a 92 K2500 with a stock 5.0, 3.42 gear ratio, and will be used for light to medium duty hauling. The rebuild will include a corvette servo, new steels and clutches, new seals, new...
  8. W

    700R4 Test Port Plug

    I am trying to find a replacement for the test port plug on my 700R4. I have found a used one but would like to find a new one. My current one is rounded off and I had to destroy it more with vice grips to remove it. Is there a reason for the little smooth shaft on the plug? I would replace it...
  9. W

    Transmission Ground

    I see this was mentioned in a different post, but wasn't sure what the consensus was. I have a 92 K2500 with a 700R4. It uses the TV cable and not the main wire harness like the 4l60E. Should I add a ground wire from the transmission to the frame? I am okay with it being overkill, but I don't...
  10. W

    TV Cable Fears

    I will be running this TV cable replacement on my 92 K2500, 5.0, with a 700R4. I have it drilled into my head that this is an absolutely critical component. I am going to use the stock routing and adjust the cable once my trans is put back in. I see that Sonnax sells this upgrade (AS1-01K) to...
  11. W

    700R4 Rebuild Parts

    I have a 92 K2500 with a 305 and 3.42 gears. It is a stock truck and will be used for basic truck stuff. I burnt up my 3-4 and am looking into rebuilding it. I don't need a 600HP Extreme Heavy Duty setup. Just something that will work and that will last with regular maintenance. I have compiled...
  12. W

    What should I do?

    I have a 92 K2500 with a 700R4/4L60 that lost 3rd gear. Fluid was low so I added some and it still free revs when it goes into 3rd. I am assuming the transmission is shot and I am trying to figure out a plan. The truck has 75,000 miles on it but is definitely just a beater truck. I have less...
  13. W

    700R4 Leak

    i have a 92 K2500 with a 305. I was driving yesterday and noticed that when I had my foot almost to the floor, I had to let off to shift from time to time. I don’t normally drive like this so didn’t think much of it as i wasn’t sure what it was normally supposed to be like. When I was almost...
  14. A

    1988 350 tbi sputters while accelerating

    I recently bought a 1988 gmc with the 350 tbi and 700r4 in it. It was my dads truck before, and he never had any issues with the engine much. He did have transmission problems, and I recently finished swapping the tranny and I noticed a very serious sputtering issue on acceleration. It starts...
  15. A

    1991 C2500 350 TBI VSS Issue

    Hello everyone, I have a 1991 c2500 (159,000 miles) that I purchased that had been sitting for about 9 years, I went through and essentially replaced almost everything. I would list everything here but just think about all the basics that one would switch when in a situation like mines. (note...
  16. V

    700r4 VSS sensor problem need help ASAP

    Hello everyone, I need help deciding whether I'm in deep trouble or okay to continue. I own a 1992 GMC Sierra with a single cab and a short bed. Recently, I had my 700R4 rebuilt and it's been working great. However, my speedometer stopped working, so I replaced the VSS magnetic sensor. It worked...
    • Vddiaz94
    • Thread
    • 700r4 c1500 gmt 400 gmt-400 gmt400 i need help transmission vss why god
    • Replies: 4
    • Forum: Transmissions
  17. Ruff Idol

    No Power to Speedometer?

    1992 C1500 with the 700R4 here. So I've had an intermittently working speedometer, most days it's just totally dead no matter what speed you're going, and if I'm lucky enough to hit a serious pothole it comes back briefly. Started by replacing the VSS and its pigtail (the old wiring was soaked...
    • Ruff Idol
    • Thread
    • 700r4 drac speed sensor speedometer transmission vssb
    • Replies: 6
    • Forum: Electronics
  18. D

    700r4 Rebuild Advice Wanted

    I am taking auto mechanics classes at a local community college. Around the first of June, I will rebuild my two-wheel drive 1989 Silverado's original 700r4 transmission with the guidance of my instructor. My truck has the original 350 V8 and retains the TBI system. Does anyone have suggestions...
  19. Ruff Idol

    4L60/700R4 Slams Into Gear, Delayed 1-2 Shift

    1992 C1500 with the 4L60 (not 4L60E) here. So the deal is I am already easily nauseated (especially after a cigar) and let me tell you when I throw the truck in drive or reverse it slams into gear so hard my stomach may go out the window. Also this week I just lost my 1-2 shift, or at least it's...
    • Ruff Idol
    • Thread
    • 4l70 700r4 dipstick fluid hard shift transmission
    • Replies: 31
    • Forum: Transmissions
  20. S

    Is this the wrong filter for my 700r4

    Hey everyone I’m doing a filter/fluid change on my 1988 700r4 trans and the new filter that said it would fit at advance auto looks completely different then my old one. My old one is the chunkier square one and the new one is more of a rectangle shape, are these interchangeable? I bought the...
  21. CrystaledJazz

    NP241 Strength?

    I have a np241 out of an 89 GMC. I'm wondering how strong it is for what abuse I'm going to use it for. The truck has a 350 that I plan on putting a cam, heads, headers, and intake on, so I'm hoping for around 350-400 crank horsepower or maybe even more. I know I'm going to have to build the...
    • CrystaledJazz
    • Thread
    • 350 700r4 breaking things horsepower np241 strength transfer case upgrades
    • Replies: 3
    • Forum: Transmissions
  22. C

    Wiring issue with Dakota digital cluster

    I have this dash cluster that I bought and I’m having issues finding the wiring diagram for the dash cluster for my truck so I can install this one. I have a 20 pin pigtail on my truck and need advice with doing this swap. There is multiple of the same colors and just need help getting a wiring...
    • cox41104
    • Thread
    • 350 700r4 c1500 cluster swap digital cluster need diagram need help
    • Replies: 4
    • Forum: The Garage
  23. BappleApple

    1990 C1500 700R4 to TH400 Swap (need help & experienced advice)

    Hey Guys! Been a while, but you ain't got rid of me yet ;) So my bestfriend & I are building his 1990 Chevy C1500 (Single Cab, LWB) that he bought as a roller. Truck originally had a 305ci & 700R4 from the factory (700R4/4L60 in 1990, call it whatever you want but still just a 700R4) We put a...
  24. B

    Intermittent vibration/shuddering in reverse

    I have a 1989 K1500 350tbi with a 700R4 that has been having an intermittent vibration or shuddering motion only in reverse. No issues with moving forward but when it happens in reverse the truck will stop rolling backwards like it's in a bind and then I press the gas is when the...
  25. T

    Transfer case delete?

    I purchased a 89 k1500 that had the front CVs and driveshaft removed so it's effectively a 2WD truck. Now my question is, with the only remnants of a 4WD being the transfer case, is there a way to delete it? Like get a new longer driveshaft and some sort of adapter for the tail of the 700r4 to...

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