The results are in. The 1-2 accumulator replacement with just one inner spring was successful. Shifts so smooth you almost can't even tell. If anyone comes across this thread with a hard shift from 1-2 at low acceleration but shifts normal with hard acceleration, replace your 1-2 accumulator.
After reading this: http://www.autoserviceprofessional.com/article/92759/servicing-a-harsh-gm-shift I am not going to put the large outer spring in. Since it came from ACDelco with only one spring, I can only assume, without any further information, it should only have one spring. Wish me luck.
I'm replacing my 1-2 accumulator. 4L60E 2005. The old accumulator came out with 2 springs: one small and one larger. The new accumulator (ACDelco) came with only the one smaller inner spring. See attached. New on left, old setup on right. Should I be putting the old large spring in or not?
Thanks for the tips. That's exactly what I did and it went pretty good. Bringing the tires down to 30 PSI did nothing or made it worse. It rides worse than the back seat of an unloaded F350.
I'm pretty sure it's in this thing: https://www.amazon.com/gp/product/B001EGT3I4/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 The CV axle does slip into it... but the ring is in the greased area of the bearing.
2005 GMC Sierra 1500 4x4 with Z71 package (no aftermarket suspension modifications) I'm looking for new shocks online and alot of these say "w/ Z71" or "w/o Z71" so the question is: does it really matter? Can I buy normal shocks? I can only find shocks "for Z71" that seem to be firmer than others (where you have a larger selection). I'm looking for softer touring style shocks if anyone has suggestions as well.
I went ahead and increased the adjustment by 4 full turns. The bottom bump stop is now about 1/3-1/2" away from the lower control arm. I did a test drive and it might feel a tiny bit better but at least I can rule out this. Next up are shocks and whatever else might need replacing. I couldn't swap tires because as it turns out I have 15's on my van, haha. I thought I had 18's. For some reason, a previous owner also swapped out the OEM rims for larger rims. Stock size are 17's and there are 18's on there. When I do eventually get tires, I might go back to stock.
I will do some testing with adjustments. Thanks for the suggestions. Tire pressure is 38 PSI. I am actually replacing a hub bearing tomorrow for a bad wheel speed ring. Tires are 3 ply I guess. They are Yokohama GEOLANDAR H/T G056 P275/65/R18 114T Oil is good. No leaks, that oil you see is from an oil change accident. I missed the old gasket and it blew off when I started the truck I'm actually going to swap my tires with my new Michelin LTX M/S's I have on my van. They ride REALLY nice.
Hello. I just purchased a 2005 Sierrra 1500. It's got 4x4 with torsion bars on the front and 1500lb (stock?) springs on the back. I just put new Monroe 911502 on the back, but it didn't improve things so far (unrelated, they had to be replaced). The ride quality is sub-par. It feels very sturdy but I get this weird feedback you usually associate with a really heavy duty truck. Every bump resonates through the truck and I want to eliminate the ride height as the problem. To me, it looks like the lower control arm is sitting on the rubber bump stop. Do I need to tighten the torsion bar up? I don't intend to haul or tow, so a more comfortable ride is more important to me. Pictures attached.
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