New rear ends coming from GM

[MIHELA]

Just a heads up everybody, the 2014 Silverado will have 9.5 and a new 9.75 rear end with disc brakes and 6 lug axles. I don't know how close the spring spacing will be, but there will be thousands of these in the junkyards in a few years. All half ton V8 trucks will have these. They use the same wheel pattern as 88+.

 

[JonZ71]

uhh. wheel patter n has been the same for many more years then 88. But yes..

 

[MIHELA]

Not the center hub though.

 

[Phil]

fairly certain the center hubs are bigger starting with the gmt-900 trucks when compared to 400s and 800s

 

[bluex]

fairly certain the center hubs are bigger starting with the gmt-900 trucks when compared to 400s and 800s

Nope I had GMT900 wheels on my truck before the lift. Fit just fine....

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[Phil]

yes, but they're not hub centric, are they? the factory wheels from your truck wouldn't fit on a gmt-900 truck.

 

[88GMCtruck]

All OE wheels should be hub centric, from 88+ in fullsize at least. I'm pretty sure the squarebodys are as well.

I know that the GMT400, GMT800 and GMT900 all have the same hub centric bore. I have used the same set of hub centric 22s on my 02 and my dad's 09. And my 88 and 02 have also shared a few hub centric wheels as well.

Now, I think it was 05+ the front brakes were increased in size so only 17" or larger will work. So that is where a GMT400 or early GMT800 wheel will not fit a GMT900.

 

[Phil]

For some reason I have it stuck in my head that the hub bore of a gmt900 was bigger than the 400 and 800, I know the 400 and 800 are the same size. Guess I was wrong.

 

[benz88]

yeah, Friend has a set of GMT800 Escy wheels on his 900.

 

[FastOrange]

400 wheels fit early 800, guy around here has a set of the early 400 rims on his 99.