Onebad1983
Resident Country Dumbass
- Joined
- Mar 5, 2018
- Posts
- 1,262
- Reaction score
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I have no clue if it was added by a previous owner. This thing was supposedly owned by an older couple since new so I have no clue
2004 6.0 NV4500 Tahoe
- Thread starter Dantheman1540
- Start date
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Tonyrodz
Resident Resident
Check your rpo's?
Sam Harris
Supporting Member
Looks like it might be: JM3, JM5, or JM7..?
Looking at the RPO codes, looks like JM7 is promising:
JM7 12130 P BRB M BOOSTER BRAKE, HYD, HI PERFORMANCE
There are many more I just found. I’m not sure how to narrow it down. Do you have your RPO list?
Looking at the RPO codes, looks like JM7 is promising:
JM7 12130 P BRB M BOOSTER BRAKE, HYD, HI PERFORMANCE
There are many more I just found. I’m not sure how to narrow it down. Do you have your RPO list?
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Dantheman1540
Full Access Member
RPOs, good thought! I'll have to check those when I get to my computer tomorrow.
Installed the 4Hi circuit board which is so easy a cave man could do it. Also needed to do a tire rotation so I also threw on some 1/4 wheel spacers. The inner sidewall on the 285s rub the rear inner fender just a tad and I think that's cured now. Also at full lock the fronts rubbed somewhere. Never found rub marks but I could feel it.
I'm not a big fan of wheel spacers and I've never run the cheap kind that's just a disk with holes in it like a giant washer. Well never until now. Got them torqued to spec no problem and survived a test drive up to 80mph with no vibrations. Came home and re-torqued them which none were loose so that's good.
Installed the 4Hi circuit board which is so easy a cave man could do it. Also needed to do a tire rotation so I also threw on some 1/4 wheel spacers. The inner sidewall on the 285s rub the rear inner fender just a tad and I think that's cured now. Also at full lock the fronts rubbed somewhere. Never found rub marks but I could feel it.
I'm not a big fan of wheel spacers and I've never run the cheap kind that's just a disk with holes in it like a giant washer. Well never until now. Got them torqued to spec no problem and survived a test drive up to 80mph with no vibrations. Came home and re-torqued them which none were loose so that's good.
JonnyTahoe
Full Access Member
I like the tall Napa Pro Select 21522.
JonnyTahoe
Full Access Member
OP
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Dantheman1540
Full Access Member
I just recently got a oil filter cutter so I'm excited to see what different filters look like inside after so many miles.
JonnyTahoe
Full Access Member
Check out the many YouTube video where they cut open filters and compare them.
OP
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Dantheman1540
Full Access Member
Heres the RPO list.
I've seen some but haven't specifically looked at each brand. Plus in person is more fun and those filter cutters are so satisfying.
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Dantheman1540
Full Access Member
I think its JH2 BRAKE HYD POWER, DISC/DISC, 7,200 LBS
Its the only one that seems to make sense out of my RPO codes. Anyone else have hydro and mind posting their RPOs?
I'm just curious to know what package the hydroboost was included with since mine is so base.
Its the only one that seems to make sense out of my RPO codes. Anyone else have hydro and mind posting their RPOs?
I'm just curious to know what package the hydroboost was included with since mine is so base.
