Just ran across this one as well...
https://www.ebay.com/itm/401817154696?mkevt=1&mkcid=1&mkrid=711-53200-19255-0&campid=5338722076&customid=&toolid=10050
I'm planning on changing the rear diff oil in my 89 Burb this weekend. Was going to go with Royal Purple, but someone mentioned Amsoil Severe. Thoughts?
Thanks for all of the info here, need to check the RPO codes on mine, not sure if it's LS....
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Update... Now struggling with shock extenders. Come to find out, the rear end must be out of a 4x4 and had different shock mounts... Who knew. Any ideas for shock extenders that will fit?
Same problem almost 10yrs ago... http://67-72chevytrucks.com/vb...read.php?p=8824206#post8824206
Sent...
Swapped a 12 bolt into my 88 burb with a flip kit. Now struggling with shock extenders. Come to find out, the rear end must be out of a 4x4 and had different shock mounts... Who knew. Any ideas for shock extenders that will fit?
Same problem almost 10yrs ago...