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  1. #1

    Default Some problems and questions with my 87 Burb...

    Ok guys, I'm beginning to get more and more involved with my truck. I currently use it to tow my 8.5x16x7 enclosed trailer and I've installed air shocks on it to help the ride. My question is, I found these bbk underdrive pullies and I want to get some feedback on how well our L05 motors respond to these. This would be a great upgrade for towing right? Also, my window switches don't work anymore and the motors in them are also going out and I want to do away with them by just getting the whole manual setup from a junk yard and convert it to manual. Is this an easy one Saturday project? Any special tools needed or just the basic garage tools?

  2. #2


    Basic hand tools is all you need, "except the window crank snap ring tool" for removal of the crank on the manual vehicle. If you have a long 8" or so thin flat blade screwdriver you can get by with this. Your 1st time will take 2 hours (guessing) not a hard job. You get to know your vehicle a little better. Clean & grease the manual gear and track before assembly. I think this info is in the manuals if you have one. I would take apart the manual door first and look at the components to see if they are worn. Good Luck.........!

  3. #3


    Ok thanks. Any info on the pulley set?

  4. #4


    So you are towing a trailer and slowing down your water pump? Sound like a recipe for disaster?

    Unless you are towing the trailer a 1/4 mile at a time I would leave this mod to the racers. There are plenty of better options for increasing mileage and power.
    1998 K-2500 Suburban
    454 w/ 4L80E
    Suspension Maxx T-Bar Keys Gibson Cat Back K&N Intake
    Mag-Hytec trans pan and diff cover Hypertech Programmer
    MSD 6A, Blaster Coil & Wires Roadmaster Active Suspension
    Hummer H2 wheels w/ BFG All Terrrain T/A KO

  5. #5


    Good point. I failed 2 realize this but even a underdrive crank pulley would have a negative affect?

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