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  1. #1

    Default Was Wondering if it was possible.

    I have a 90 K1500 350 5spd Getrag. I am wanting, and kinda needing a K2500. Now I know that i can go out and buy one, but where is the fun in that??? Plus, I can spend around $10,000 now for what I need, or, I can spend the same amount over a couple years time frame, and have even more fun by doing the work myself.

    Powertrain: To start with I am looking at a complete powertrain upgrade. I talked with the techs at summitracing.com, and found out that I can get about 350-450 HP and 500-550 lb-ft. torque for around $5K. I know I am gonna have to change the tranny because I have found that anything over 250 HP with damage the input shaft on the getrags. I am contemplating a NVG4500 or even a NVG5550 with the PTO to handle the power. I have a New Process 241 Transfer case, but am looking at getting a 205, or a T-10 rock crawler to get more reliability with the higher power.

    Suspension: I want to do a K2500 Full Suspension package. I know the C-Channel Frame Rails are the same from 1500 to 2500. But I think that I am gonna have swap the front A-Arms, hubs, Torsion Bars and probably the T-Bar Crossmember I am wanting to get these from a 2004 to 2007 model if I can Simple because they have a higher load capacity. In the rear I am Wanting to actually go with a newer system period. Definitely from a 04-07 truck because of higher weight capacity and better stability control. I want the whole axle too so that I can get a "cheap" Disc brake upgrade. I also like the sway bar on the axle. I think the newer axles are wider than the 90's style, So I think there might be some trimming required.


    These are just ponderings that I have over the last couple of months and thought that I might ask some people that could've possibly attempted and succeded (or failed) and possibly what I am looking at. Thanks for reading.
    2002 Silverado K1500HD (NEW!!!!!!!)
    1999 S-10 Blazer
    1990 K1500 5-spd TBI 350.
    2001 Monte Carlo SS Pace Car

  2. #2

    Default

    a gmt400 7200 gvw 3/4 ton uses the same frame as the 1500 but the 8600gvw 3/4 ton is different, none of the 8600gvw 3/4 ton front suspension will bolt on, the mounting is different including the mounting for the 9.25 ifs diff

    the 04-07 trucks you want parts from if i remember right had a higher load due to the hydroform frame not due to suspension components
    Last edited by outalne94z71; 11-06-2011 at 10:09 PM.
    my 88 sas "mudwasp"
    88 chevy k2500, started as reg cab lb, now reg cab shortbox, sas 17'' of lift, 52'' front springs f.i. bbc , 79 dana hp 60 chevy outers, 14bolt ff spooled divorced 205 and cut 40'' gumbos
    1998 k3500 gmc crew cab dually L65 6.5TD 4l80e with a couple of mods

    bouncing truck avatar creator

  3. #3

    Default

    ok, so short of buying a completely different truck, what can I do????

  4. #4

    Default

    solid axle swap?

  5. #5

    Default

    You have way too much time on your hands. Buy the 3/4 ton truck, 8,600 gvw, 4x4. If you want more power drop in a crate motor. There. You are done.
    1994 Chevy K2500 Silverado, 454 (modified), original owner.
    And other vehicles and toys.

    "...If you can meet with triumph and disaster
    And treat those two imposters just the same;
    ...you'll be a Man, my son!" Rudyard Kipling

  6. #6

    Default

    your a arm swap can't be done with out welding................ and who the hell would do that

  7. #7

    Default

    Go buy some 1 ton military axles, find a good shop that will cut the tubes and shafts down to the length needed to fit your truck. Swap the ifs out to the solid axle, put some good leaf springs on the front and back, Then your in business. If it was me I would buy a 2500

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  8. #8

    Default

    Quote Originally Posted by Pikey View Post
    Go buy some 1 ton military axles, find a good shop that will cut the tubes and shafts down to the length needed to fit your truck. Swap the ifs out to the solid axle, put some good leaf springs on the front and back, Then your in business. If it was me I would buy a 2500
    1 ton axles do not need to be cut and the military used a chevy k30 which is the wrong side pumkin for the front, he needs a 77.5-79 ford dana 60 front to do a sas

  9. #9

  10. #10

    Default

    x2 on solid axle swap. as cool and more advanced IFS is, it requires alot of maintainence. Maybe some bolt on's and stuff, but nothing too over-kill. Id probably drop in a 4bt cummins or vortec/duramax, diesel is the way to do in towing and heavy-duty industry. Even though 350 v8's are stong and powerful they dont really have as much towing power as a duramax would
    1994 Silverado Z71 1500 4x4
    BF Goodrich 31in All-Terrain Tires
    Painted frame-arms-axle
    Blazer Fog lights
    Removed front splash guard
    Tow hook Chains
    Locking gas cap
    REFLEXXION Rear bumper (Painted black)
    Diamond metal bed caps & Truck Box
    Painted engine bay
    Vinyl Flooring
    Bed insert
    Blistein Shock absorbers
    BOSS bluetooth LCD Radio
    Platinum trucker CB antenna
    Midland 5001z CB Radio
    XO backup camera
    X-press Remote entry-alarm
    CUSTOM metal gas & brake pedal
    Highland fold-away bed cleats
    Race thermostat

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