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1982 Chevy G30 Van w/ Pathfinder 4x4 conversion

Discussion in 'G Series GM 3rd Gen 71-95 Vans, Pathfinder' started by Marty, Oct 26, 2020.

  1. Marty

    Marty Full Access Member

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    First Name:
    Marty
    Truck Year:
    1982
    Truck Model:
    G30
    Engine Size:
    350
    I did't have a brass drift and I couldn't find the old lug nuts to thread on to the lugs but being an impatient person and knowing I'd be replacing the lugs anyway, I figured I'd just hit it with a hammer. Didn't hit it very hard but it moved. So, I just went around to the others and they all popped free with little effort.

    IMG_0953.JPG

    Then I stood on the drum and pulled up on the hub and it separated no problem.

    IMG_0954.JPG
    This hub will get the full treatment, new races, bearings, and seal (once the parts arrive). Then I'll mate the hub with the new drum (also, once that arrives).

    Anyone ever use one of these lug installer tools before?

    https://www.amazon.com/gp/product/B000ETUD22/ref=ox_sc_act_title_2?smid=ATVPDKIKX0DER&psc=1

    lug installer.jpg
     
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  2. Marty

    Marty Full Access Member

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    Marty
    Truck Year:
    1982
    Truck Model:
    G30
    Engine Size:
    350
    Some more vehicle information...

    The sticker says the GVWR = 8600 lbs with GAWR Front = 3900 lbs and GAWR Rear = 5360 lbs. But I thought the GVWR = GAWR Front + GAWR Rear. But here we have GAWR Front + GAWR Rear = 9260 lbs, which is 660 lbs > the stated GVWR. What am I missing?

    IMG_0956.JPG
    And Pathfinder instruction I found on the dog house.

    IMG_0952.JPG
     
    Last edited: Nov 22, 2020
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  3. Craig 85

    Craig 85 Full Access Member

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    Craig
    Truck Year:
    1985
    Truck Model:
    K30 SRW
    Engine Size:
    454/TH-400/NP205
    My K30 has a GVW of 9200 due to the fact I have 3.73 gears. 4.10's would have been 10K. My F and R ratings total out at 10584.
     
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  4. Turbo4whl

    Turbo4whl Supporting Member Supporting Member

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    Not uncommon for the GVWR to be less than the two stated axle ratings. This could even be the case because of the factory fitted tires. All 4 tires need to match the rating of the axles or more.

    With the Pathfinder mod and the front axle replaced there should be a rating from them posted as well. That would be required in Pennsylvania. Maybe you did not find the Pathfinder sticker, or it is missing.
     
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  5. Marty

    Marty Full Access Member

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    Truck Year:
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    Engine Size:
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    No brake drum yet but the hardware kit and bearing set came in giving me parts enough to play with.

    Before...
    IMG_0951.JPG
    After...
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    I'll be dropping off the bearings, races, seal and hub at the local shop shortly. Brake drum should be in next week.
     
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  6. Marty

    Marty Full Access Member

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    Engine Size:
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    Parts came in and had a shop assemble the hub and drum.

    IMG_1018.JPG
    No issues mounting it on the axle spindle.

    IMG_1019.JPG
    And then buttoning up the axle.

    IMG_1020.JPG
     
  7. Marty

    Marty Full Access Member

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    Engine Size:
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    Rebuilt power brake booster also came in this week with a new master cylinder (which will need bench bleeding before install).

    IMG_1016.JPG
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  8. Marty

    Marty Full Access Member

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    Engine Size:
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    Friend stopped by to lend a hand. Got the power brake booster mounted in position and linked up to the brake pedal.

    IMG_1042.JPG
    IMG_1033.JPG
     
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  9. Marty

    Marty Full Access Member

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    Blew out the rear hard lines first with brake cleaner and then compressed air then attached the hard lines to the rear wheel cylinders on both driver and passenger side.

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    And installed a rear braided wire brake hose (Rough Country Part #89335-2.

    IMG_1022.JPG

    Sorry for the poor exposure on this one.

    IMG_1030.JPG

    I will pressure test the system once I've sorted out the front brakes and master cylinder.
     
  10. Marty

    Marty Full Access Member

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    Front brakes... finally! Passenger side caliper came off with no issue. The pads still had friction material on them and there were no grooves worn into the disc.

    Since the calipers are unreliable due to age, I plan to replace them along with the pads. I'm not replacing the discs for now as I want to keep costs down until I get a chance to test on the engine, trans and transfer case. This also means, I'm not going to service the locking hubs which, thankfully, are not frozen. Pretty cool that Pathfinder had their own locking hubs. Hopefully I will be able to keep them in service.

    IMG_1038.JPG

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  11. Craig 85

    Craig 85 Full Access Member

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    454/TH-400/NP205
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  12. Marty

    Marty Full Access Member

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    Front right brake caliper markings. My understanding is that although Pathfinder used a Dana 44 from a Ford for the front axle, the knuckles and brakes were GM. This caliper was cast with "GM" (bottom right of the "R"). Not sure what the other markings mean beyond assuming "R" means "right." I think 18007153 is the casting number.

    IMG_1044.JPG
     
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  13. Craig 85

    Craig 85 Full Access Member

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    It is the casting number. Here's a list of interchange part numbers. Once on the link, there is an application tab to show what other vehicles ran this caliper.

    https://www.yoyopart.com/oem/11480079/casting-18007153.html#top
     
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  14. 89Suburban

    89Suburban Full Access Member

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    Awesome project and nice work there sir.
     
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  15. Marty

    Marty Full Access Member

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    Engine Size:
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    Front brake day! Calipers and pads are in. Napa had everything in stock (parts numbers pictured below).

    As with the rear, I replaced the front lines with Rough Country braided steel lines (Part # 89360S)...

    https://www.amazon.com/gp/product/B0776GB5TC/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

    IMG_1068.JPG

    The Rough Country brake lines come with this hanger bracket that wasn't needed for my application so I deleted it (probably the longest part of the job).

    IMG_1069.JPG

    Driver and passenger side brake calipers were Part # 2257XA and 2257XB (not sure which part number is right or left). Brake pad set was Part # UP728AM.

    IMG_1078.jpeg
     
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