Dirtdobber's solid axle suburban

dirtdobberoffroad

Well-known member
CRAP!!! sorry that blows, all that work on the front and the the back fails. Dang it
well its better now than 15 miles down a trial 6 hours from home... If a couple of 0-60 runs took something out I'm positive in low range on the rocks would have left me stranded on my upcoming trip.. well not upcoming anymore not enough time to find and axle replace what needs be and weld on the brackets to make it work....
 

blu88

New member
Did you grenade the rear?
Tahoe's had a habit of blowing up rear ends. These were heavy "pursuit" rated PPV's. I drove a 2006 and a 2010 for over 8 years. The other Tahoes in our fleet blew up rear ends at around 100k. That was from multiple 0- 100 launches, sometimes from a gravel median, more often on pavement.
At least i never had to pay for it ;)
Sorry to heat about the setback. especially since you had that thing up in the air for so long
 

dirtdobberoffroad

Well-known member
Did you grenade the rear?
Tahoe's had a habit of blowing up rear ends. These were heavy "pursuit" rated PPV's. I drove a 2006 and a 2010 for over 8 years. The other Tahoes in our fleet blew up rear ends at around 100k. That was from multiple 0- 100 launches, sometimes from a gravel median, more often on pavement.
At least i never had to pay for it ;)
Sorry to heat about the setback. especially since you had that thing up in the air for so long
I assume when I get it out I will know more, I'm looing into the Semi float 14 bolt that came in later model Tahoe's and Suburban's and Silverado's for that matter it is the 9.5" I really dont want the ff 14bolt because they hang so far down and 35's is as big as I'll ever go. "I think" but the just the hub conversion for FF 14 will cost as much as a Semi Floater plus gears. All the semi floaters I find have 3.42 gear sets so I will need to change them out. I also wonder if the G80 locker for the 9.5 is stronger than the 8.6...I know people say the g80 in the 10.5" 14 bolt is very strong for what we do..
It does suck but I should have found something other than a 10 bolt last time.. this is the second 10 bolt under it on 33s.
 

dirtdobberoffroad

Well-known member
So it shattered the rectangular piece in the g80 and cleaned the driver side spider gear, it sent parts everywhere inside but surprisingly the gears look good. Now I have a dilemma replace the carrier and run the 10 bolt or buy a 9.5 rear from a newer model gm suv and swap to 4.10sF75C742F-90C7-49AD-A435-9CDF24B78863.jpeg
 

mekcanix

Camper
hmmm tough call. I know yukon makes a decent replacement carrier for that diff, if the gears are good and your not intrested in changing them the costs may balance out. Unless your getting a screaming deal on the 9.5 then ignore me
 

dirtdobberoffroad

Well-known member
hmmm tough call. I know yukon makes a decent replacement carrier for that diff, if the gears are good and your not intrested in changing them the costs may balance out. Unless your getting a screaming deal on the 9.5 then ignore me
They go for any where around 200 to 500 around here. I’m going to take some measurements today to see if I can put move the brake backing plate mount from the 10 bolt to a older 9.5 that already has 4.10s. I’m confident in welding brackets on but not do with a gear change.
 

cbwymore

New member
They go for any where around 200 to 500 around here. I’m going to take some measurements today to see if I can put move the brake backing plate mount from the 10 bolt to a older 9.5 that already has 4.10s. I’m confident in welding brackets on but not do with a gear change.
I was able to convert a GMT800 non HD 2500 truck semi float 9.5 to six lug with axle shafts out of a 2500 van. Kept the big 2500 calipers and used some rotors that match the dimensions (off a suburban I think). This was bolt in for my 1500 truck but since your burning in coil brackets it's an another option.
 

CrazyDrei

Space Monkey
I know exactly how hard you've been pushing your rear end to blow up the G80, and how far you drove with it after destroying it, been there done that. To keep things simple go with a Detroit locker which would require you to swap the ring gear onto the new carrier and possibly re-adjust the pinion depth. If you want a quick, easy and cheap route, rip everything out of the G80 carrier and put a lunchbox in.

Both of these options will give you a locking rear end with at least 100 less moving parts. Going to a Detroit locker was one of the best decisions I have made for my Sub.
 

dirtdobberoffroad

Well-known member
I believe I’m going with a 14 bolt semi floater open diff and a lunch box locker in it. I have a steal on a ff 14 bolt with 4.10s already and I can convert my current dodge Dana 44 front to 8 lug with wheel bearings from an mid 90s 2500 light duty. But unsure if my current brake set up will work.
 

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