Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

whats under a 77 K20

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by tori89k5, Jan 10, 2002.

  1. tori89k5

    tori89k5 1/2 ton status

    Joined:
    Apr 12, 2001
    Posts:
    946
    Likes Received:
    0
    Location:
    Pismo Beach, California
    Hey kids..... I've got a chance to buy a 1977 K20 with Detroit locker in the rear and posi in the front, with 4.10 gears. Im thinking of buying this truck, and swaping out the running gear with my Blaze. I know it has a Dana 44 in the front, but not sure on whats in the rear. Who know's what it would be..??? And what do'yall think of this combo?

    P.S. who wants to buy a soon to be 1977 K10 [​IMG]

    1990 K5 4" lift, 33's, 3.73's Raptor Tranny and Velvet Rides....
     
  2. ChevyCaGal

    ChevyCaGal 3/4 ton status

    Joined:
    Dec 16, 2000
    Posts:
    8,158
    Likes Received:
    0
    Location:
    Sacramento, CA USA
    But Tori... if you keep it you can have a pimped out ride like or this....

    &lt;&gt;&lt;<a target="_blank" href=http://www.chevycagal.homestead.com/steph.html>Steph's Webpage</a>&gt;&lt;&gt;
    Suck Fumes Ford Boy
    I'm in shape.... round is a shape......
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

    Joined:
    Jan 12, 2001
    Posts:
    32,076
    Likes Received:
    55
    Location:
    .
    Tori, that '77 is the start of the "second design" truck on the drivetrain, especially the front axle.

    Also, '77 is the first year of the 10 bolt front axle, so it could have this axle, too, instead of the D44. Beware of this. [​IMG]

    The rear will definitely be the 14FF, and it should have the 13" drum brakes, but it could have the 11" drums, too.

    This combo will be strong enough for your Blazer, and many others, too.

    If the price is right, buy it. Do the 1/2 ton swap and resell it for the same or more than what you paid for it. [​IMG]



    I'm not picking my nose...I'm just pointing at my brain!! [​IMG]

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>The K30 Collection</a>
     
  4. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
    Posts:
    10,384
    Likes Received:
    2
    Location:
    Georgetown, TX
    That's exactly how I got the axles that are under my '75, except they came from a '74 K-25 GMC. Like Wes said, the 10-bolt front axles started showing up mid-year '77. But they're not enough different from a Dana 44 that I'd worry about it. Swap the axles and sell the truck. [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  5. 76chevy

    76chevy 1/2 ton status

    Joined:
    Aug 16, 2000
    Posts:
    246
    Likes Received:
    0
    Location:
    Utah
    How many bolts does it have on the rear differential? That will tell you what it is 12=12bolt 14 = etc....

    One more thing to consider is your rims. How many lugs do you have vs the ones you are looking to swap in. Are you willing to pay for new rims also?

    If so, go for it and do the swap.

    <font color=red>Spirit of 76</font color=red>

    <a target="_blank" href=http://homepage.mac.com/toddcripps/Menu2.html>homepage</a>
     
  6. tori89k5

    tori89k5 1/2 ton status

    Joined:
    Apr 12, 2001
    Posts:
    946
    Likes Received:
    0
    Location:
    Pismo Beach, California
    Yep...... already had plans to get new wheels.... switching from 10's to 8" wide wheels, and maybe going with the new Ultra's that Kpanza was pushing awhile ago...

    1990 K5 4" lift, 33's, 3.73's Raptor Tranny and Velvet Rides....
     

Share This Page