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  1. LoCascio_Inc

    OEM Dash Switches for ARB Compressor and Lockers

    I'm currently installing an ARB compressor and lockers in my 98 K2500 and really wanted everything to look as factory as possible. I figured I'd share how I put together a custom harness and switch combo. The top position of the triple switch retainer needs a little trimming with a Dremel to fit...
  2. LoCascio_Inc

    Code/Name for the 1995+ DARK Grey Dash Bezel Accent Color

    I'm struggling to locate the color code or name of the dark grey accent color that surrounds that the gauges, HVAC, radio, etc. on ALL 95+ GMT400 dashes. I'd like to customize some switches to the right of the gauge cluster and paint them to match. Just to be clear, I'm referring to the the dark...
  3. LoCascio_Inc

    Fuel Gauge Wiring with PCM Delete

    I’m trying to delete the PCM on my 1998 K2500 Cummins swap and rewire my factory fuel gauge. Truck was originally a gasser with a single fuel tank. Pin 13 on PCM connector C3 (grey/clear) is “Fuel Level Module” coming in from the in-tank sender and pin 9 on PCM connector C1 (blue) is “Fuel...
  4. LoCascio_Inc

    K2500 Lower Control Arm Bolt Removal

    I’m in the middle of rebuilding my entire front end. I have forged LCAs. The rearward bolt of both LCAs has the head facing forward and cannot be removed without contacting the axle shaft flanges. Is removing the front axle a required step for removing the LCAs or were my bolts installed...
  5. LoCascio_Inc

    Aux Tank Fuel Sending Unit 15732147

    Is anyone familiar with this aux tank fuel sending unit: https://www.summitracing.com/parts/ado-ep1002 Or https://www.wholesalegmpartsonline.com/products/Chevrolet/Fuel-Tank-Sending-Unit/2778335/15732147.html Will it have the proper depth to fit a normal 25 gal tank? This unit appears to be...
  6. LoCascio_Inc

    Adjustable proportioning valve for ABS Delete

    So I’ve deleted my ABS system and I’m trying to dial in my new proportioning valve. My new brake system consists of the original vacuum booster and master cylinder with 3/16 braided stainless lines to a Wilwood adjustable p-valve. Front brakes are braided stainless 3/16 lines from the p-valve...
  7. LoCascio_Inc

    Shift Linkage for a Ford NP205 in a GMT400

    So I’ve got a 6BT/NV4500/Ford NP205 swapped into my GMT400 truck. I’m trying to figure out the best way to connect my factory floor shifter to the NP205 and figured I’d ask around to see if anyone had done this before or had an example to share.
  8. LoCascio_Inc

    Power Steering Overflows Only When Turning Right

    I installed a rebuilt power steering pump and Redhead steering box, filled the reservoir, jacked up the front end, and started slowing turning the wheel from lock to lock. I realized that when even slowly turning to the right the reservoir fills up and leaks out past the cap. The faster you...
  9. LoCascio_Inc

    NV4500 Swap - Rewiring Reverse Light from Hacked Harness

    I’m swapping a 4l80e for an nv4500 but the harness to the 4l80e has been cut off. I’m trying to locate the correct pink wire and light green wire that used to go to the neutral safety switch for the reverse lights. Can anyone tell me the specific pin out locations for the other ends of those...
  10. LoCascio_Inc

    Converting gas fuel system to diesel

    I’m in the middle of converting my old gas 5.7 fuel system for my 6BT swap and had a few questions. Filler neck, hoses, cap, etc. are all original gas components. The tank is super clean inside and I’ve replaced the in-tank pump with a length of submersible fuel hose. Original supply and return...
  11. LoCascio_Inc

    How to reset primary odometer to 0

    I’m the middle of an extensive restoration and Cummins swap and I want to reset it back at zero to more easily track future mileage and engine break-in and whatnot. Can anyone point me to instructions on how to do this properly? Before anyone rides in on their high horse of justice to remind me...
  12. LoCascio_Inc

    Wanting opinions for ABS delete dilemma

    I have a dilemma. I’m converting my 98 K2500 from a 350/Auto/electric shift t-case to a Cummins 6BT/NV4500/Ford NP205. The overall theme of the build is: bullet proof reliable and as simple as possible while being comfortable for long distance driving/overlanding. The ABS has not worked since I...
  13. LoCascio_Inc

    Wiring front diff actuator with NP205 conversion

    I have a 98 K2500 with a 5.7/4L80E/NP243 (electric shift) and I’m converting to a 6BT/NV4500/NP205. I’m retaining the IFS for now and was wondering how to wire the front diff actuator. The actuator was loomed with the transmission harness and then through a plug on the top of the old NP243.
  14. LoCascio_Inc

    Should I reuse this "new" clutch in my NV4500? (detailed photos)

    Does this clutch look good enough to reuse on a freshly rebuilt, stock power, non-IC rotary pump Cummins 6BT and freshly rebuilt Dodge NV4500? Can anyone provide more info on what brand it may be? I'm doing a Cummins/NV4500 swap on my 98 K2500. The previous owner of the powertrain claimed that...
  15. LoCascio_Inc

    NV4500 Rebuild Trouble - Countershaft won't fully seat

    I'm rebuilding my NV4500 and when installing the countershaft, the rear bearing sits proud of the case. Shaft spins freely until trying to tighten the bearing retainer plate and then it binds up. Bearings are Koyo brand. Bearings and bearing cups are all pressed in correctly. I'm stumped at this...
  16. LoCascio_Inc

    Mysterious C0236 - Missing Rear Speed Sensor

    I've been struggling to sort out the ABS in my 1998 K2500 since I bought it. At this point I'm stumped. Current situation is as follows: Speedo works fine. ABS light and C0236 code are triggered as soon as brakes are applied after moving (<20mph). ABS does not function and rear wheels lock up...
  17. LoCascio_Inc

    Weak air flow on passenger side vents only?

    1998 2500 extended cab truck, now with a 1996 style 2500 dash and the accompanying upper HVAC ducting. Both dash styles have had really weak air flow on the two passenger HVAC vents near the glovebox. Driver side vents blow great hot or cold but passenger side is always kinda lame. Anyone else...
  18. LoCascio_Inc

    Help Needed - Rear Speed Sensor Wiring Leads to Nowhere. w/ PICS

    1998 K2500 ECSB has had a code C0236 (missing rear speed sensor) since purchased. I disassembled the wiring harness to look for a short and revealed that the wires from the rear speed sensor on the transfer case output terminated at another connector with a female to female adapter about 18"...
  19. LoCascio_Inc

    Help Needed - Rear Speed Sensor Wiring Leads to Nowhere. w/ PICS

    1998 K2500 ECSB has had a code C0236 (missing rear speed sensor) since purchased. I disassembled the wiring harness to look for a short and revealed that the wires from the rear speed sensor on the transfer case output terminated at another connector with a female to female adapter about 18"...
  20. LoCascio_Inc

    CCSB Info Wanted

    Looking for info on OBS crew cab short box trucks. What years were they available? Were they only available as 2500/3500s? Were they available in Silverado trim? Leather, consoles, power accessories, etc.
  21. LoCascio_Inc

    Small Displacement Diesel Swap Options?

    Fred Williams from Dirt Every Day recently did a video reviewing a Quigley 4x4 2500 Express van with the new 2.8 Duramax & 8 speed automatic . He seemed very impressed with it's ability to move a 3/4 ton van and this made me wonder if other smaller displacement diesel swaps have ended up in the...
  22. LoCascio_Inc

    Proper Cab Emblems for 1998

    I have a 1998 K2500 ECSB in Silverado trim and I'd like to confirm if the original (now missing) cab emblems would have been the "LT" or "Silverado" ones. Thank you.
  23. LoCascio_Inc

    Installing a 3rd Row Suburban Dome Light in a Silverado

    I've always wondered why the trucks kept the same flat dome light from 88-98 but the Suburbans got the much nicer ones with the 95+ interiors. FYI, the 3rd row Suburban light has a taller bezel than the middle light and will sit completely flush to the Silverado headliner whereas the middle one...
  24. LoCascio_Inc

    No Fuel Trim Readings on SUPER Rich 5.7 Vortec

    I'm super confused with what's going on so I'm going to lay out the situation in an "evidence list" format and would greatly appreciate any insight y'all might have. Previous Details: 1998 K2500 was bought four months ago. Has a questionably rebuilt 5.7 Vortec (multiple, small oil leaks) and a...
  25. LoCascio_Inc

    Later style dash interchangeability

    I’ve got a 98 K2500 with a horribly broken dash. I’ve been crawling the local listings for a replacement to swap. Are all the 95-98 style dashes interchangeable? Does the presence or lack of a passenger airbag make a difference? (Mine has the 2500/3500 cubby in place of an airbag)
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