I did precisely that, and upgraded to the stronger EXT rear axle at the same time for only $430 and a half day's work for two people.
What did you sell? Maybe the carrier? The "pumpkin" is a nickname for the housing usually, or the entire diff.Is the axle housing the same, whether you have an open diff or the G80? I ask because I have an axle housing from my 2003 Envoy that had an open diff--I sold the pumpkin but still have the housing and axles and calipers and mounts.
SWB I6 is 8.0" ring gear, yes. SWB V8, offered in later years than yours, is 8.6". ALL EXT/XL/XUV models have the 8.6" diff, both I6 and V8.I have a few questions about this. First, I've seen some online 4wd stores list the 8.0 and 8.5/8.6 rear ends for the 02 and up TBs. So am I correct in assuming the SWB I6 have the 8.0 and only the LWB V8 have the 8.5/8.6? And second, did you reuse your stock brakes or did you change them as well? TIA.
I did four years of ever-more-difficult trails including the eastern third of the Rubicon, with an 8.0" G80. Teebes still hasn't upgraded his rear axle to EXT, but he and I do the most extreme western stuff the trucks can handle.I didn't know there was a G80 for the 8.0" gear.
Try it functionally. It's the only other way. If one rear tire is in the air, just spin it quickly. Only 100 RPM will set off the locker. Typically, with a fast spin, within 1/4-1/2 turn, it will lock up and stop because the other tire is on the ground.Aside from looking at the build sheet for the G80 RPO code, or removing the diff cover and seeing what's inside, are there any other cues to look for?
Inside the glovebox door.On my last three cars the build sheet was on the underside of the trunk lid; where is it on hte trailvoy?
There are three ratios. The RPO codes for them have been posted a few dozen times, and are in the RPO code lists under the "resources" pull duwn menu.Oh, and are the ring&pinion sets the same ratio on all non-ss models?