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  1. R

    1977 gmc k25 ignition cylinder siezed.

    I literally have destroyed the old cylinder! No internals at all just the shell. And it stoll will not come out.
  2. R

    1977 gmc k25 ignition cylinder siezed.

    Ok I my 77 k25, is stuck in the run position and I cant get it to the star position or the lock position. I have the new cylinder but the old one just wont come out. What do I do?
  3. R

    turn signals dont work but hazards do?

    I just picked up a multimeter today so im gonna check it here in a bit.
  4. R

    turn signals dont work but hazards do?

    Yea I changed both
  5. R

    turn signals dont work but hazards do?

    Ok everyone I have another problem on my 77 gmc k25 sierra grande. My turn signals went out, and neither work. But my hazards work, I bought a new flasher for my fuse block, and that hasnt helped at all. Could someone give me something else to try that may be causing my problems?
  6. R

    what gears should I run in my 3/4 ton lifted gmc?

    Yea I found a 4x4 shop that is close to me that will do the swap with g2 gears for 1400 out the door for both axles.
  7. R

    what gears should I run in my 3/4 ton lifted gmc?

    Well thank you for the great advice. So your saying that the 4.56s will probably be my best bet.
  8. R

    what gears should I run in my 3/4 ton lifted gmc?

    Well I wanna thank everyone that took time out of their lives to help me out with vital information. Ive decided that, im going to go with 4.10s. Depending on what my gear ratio is right now. If its 3.73 or higher ill go with 4.10s. Thanks guys I appreciate all you do.
  9. R

    what gears should I run in my 3/4 ton lifted gmc?

    This number is stamped on my 14 bolt ff 3877323
  10. R

    what gears should I run in my 3/4 ton lifted gmc?

    I coukdnt tell you what my highway rpms are. I dont have a tac. But id say they are around 2500 at 70 if I had to guess.
  11. R

    what gears should I run in my 3/4 ton lifted gmc?

    I have locking hubs on it. Maybe it doesnt have the 3.73s like I was told.
  12. R

    what gears should I run in my 3/4 ton lifted gmc?

    Im not sure I havent checked. Would it be on there?
  13. R

    what gears should I run in my 3/4 ton lifted gmc?

    Lol how do I determine that I have 3.73 gears without opening everything up? Im pretty sure that the year and axles I have came with 3.73s.
  14. R

    what gears should I run in my 3/4 ton lifted gmc?

    Aah, so how much of a change would I see going from 3.73s to 4.10s and 3.73s to 4.56s?
  15. R

    what gears should I run in my 3/4 ton lifted gmc?

    Lol yea my top speed is usually 55. That seems like alot of money to throw down for 4.10s just to have it only be 1 tooth difference.
  16. R

    what gears should I run in my 3/4 ton lifted gmc?

    I appreciate all the advice. And my truck is in 4 wheel drive all the time lol. Its got the np203 transfercase. Im starting to think that maybe the 4.10s would be my best bet. I just like the idea of having the 4.56s just incase I go bigger and heavier with my tires.
  17. R

    what gears should I run in my 3/4 ton lifted gmc?

    I dont ever go on the highway the fastest I go is 55mph. I dong think ive ever had it at 70 lol. But so 4.10s would be a good idea to look into?
  18. R

    what gears should I run in my 3/4 ton lifted gmc?

    Awesome thanks guys
  19. R

    what gears should I run in my 3/4 ton lifted gmc?

    Its got a th350
  20. R

    what gears should I run in my 3/4 ton lifted gmc?

    Its my daily driver. Sk I think im gonna go with 4.56s ill probably keep my 35s or just go to 36s at the most.
  21. R

    what gears should I run in my 3/4 ton lifted gmc?

    So if I put kn 4.56s and keep the 35s it should be good? 5.13s for 37s?
  22. R

    what gears should I run in my 3/4 ton lifted gmc?

    Thats what im hoping for lol
  23. R

    what gears should I run in my 3/4 ton lifted gmc?

    The guy that built it said on the dyno that it peaked at 374 at the flywheel. He could have just been trying to make his build seem better, very possible. But when I get on it while on the street it gets up and goes.
  24. R

    what gears should I run in my 3/4 ton lifted gmc?

    Ok guys I just had the engine in my 77 lifted gmc rebuilt. Its a chevy 350 with about 375 hp. Im running 35" tires on a 6 inch lift. Front axle is a d44 and the rear is a corp 14 bolt ff. Im pretty sure that my rear gear is 3.73, but not sure. All I know is that the truck has a hard time...
  25. R

    chevy 350 brand new rebuilt motor weird noise !! HELP!!!!

    Was just about to ask the same question lol

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