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.

transmission

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by blazentank, Jul 2, 2001.

  1. blazentank

    blazentank 1/2 ton status

    Joined:
    Apr 18, 2001
    Posts:
    426
    Likes Received:
    0
    Location:
    Houston, Texas
    well it is gone third gear is gone and i just had it rebuilt 4 months ago i went by the place and they said with those tires we wont warranty it all i have is 35's with a brand new 342 rear end the transmission guy said that the tires are to big for the rear end. The transmission is a 700r4 what i want to know is is this true or is he full of crap i think he is because he said " man you need like a 510 rearend for those big meats" i don't think so please give me all your info so i can get my baby back on the road
     
  2. michaelm

    michaelm 1/2 ton status

    Joined:
    Feb 2, 2001
    Posts:
    872
    Likes Received:
    0
    you are being fawked.
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,188
    Likes Received:
    1,394
    Location:
    E-town baby!
    A 700R4 does not tolerate heat very well. 3.42's with 35's is going to cause more heat especially if you use the overdrive. I would say the 4.56's are a better bet. If I were the one warranteeing that tranny I'd have some concerns too.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  4. Emmettology 101

    Emmettology 101 3/4 ton status

    Joined:
    May 9, 2000
    Posts:
    8,126
    Likes Received:
    0
    Location:
    FL
    Ya, most places wont warranty sh!t for us since we dont have "stock" equipment. Just the price you have to pay to be able to go where you want and look good! :)

    <font color=green>MIKE</font color=green> - "Hukd on fawnics,werkd fer me!"
    <A target="_blank" HREF=http://www.geocities.com/emmettology101>http://www.geocities.com/emmettology101</A>
     
  5. Thunder

    Thunder 3/4 ton status

    Joined:
    Jul 20, 2000
    Posts:
    8,946
    Likes Received:
    1
    Location:
    Northeast Nevada
    The smallest gear ratio you should be running is a 4.10 ,with those size tires. When the 700r4 is in overdrive it will be turning too slow with the 3.40s you are running. When 700r4 isn't turning enough RPMs they do not get enough lubrication, also the pump is not generating enough working pressure. This causes heat build up and then transmition failure as you found out. When going down a level freeway in overdrive at 70 mph you should be turning at least 2000 RPM any less and your tranny is working too hard.
    Either get smaller tires or go to a higher gear ratio.
    If you leave the big tires and 3.42s in, never run the trans in overdrive. Even then, its surival is doubtful


    <font color=orange>GOT HORSEPOWER?</font color=orange>
     
  6. mudhog

    mudhog THEGAME Staff Member Super Moderator

    Joined:
    Nov 6, 2000
    Posts:
    17,899
    Likes Received:
    2
    Location:
    portland oregon
    with 3:42's and 35's the tranny will be making to much heat when driveing you should have atleast 4:10's or more like 4:56's or 4:88's with an overdrive tranny

    77blazer see it at<A target="_blank" HREF=http://community.webshots.com/user/ssmith6333>http://community.webshots.com/user/ssmith6333</A>
     

Share This Page