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500hp on 10 bolt 7.6

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Old 05-07-2024, 08:34 PM
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Default 500hp on 10 bolt 7.6

I have a 10 bolt 7.6 in my vehicle and I'm looking to push close to power. I cant find a single thing about said differential and building it
Old 05-08-2024, 09:32 AM
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A girdle cover w/ preload bolts stiffens up the housing and helps stabilize the differential, but does nothing to the "weak link" in the 7.5" 10-bolt, which is the pinion / bearing / housing area. The shorter distance from the nose of the pinion to the rear axle C/L results in more reactionary force being applied on the nose of the pinion for a given tire-torque level than for a 8.5" or larger rear. If you have an auto and stock-ish street tires, it'll probably hold up (and produce nice smoke-shows), but meaty rear tires and hard launches (or hard shifts w/ a manual) will kill it, even at stock-ish power levels. Ask me how I know.

My recommendation is to not drop a dime on the 7.5" 10-bolt and upgrade to something beefier.
Old 05-08-2024, 10:22 AM
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Originally Posted by JohnnyBs98WS6Rag
A girdle cover w/ preload bolts stiffens up the housing and helps stabilize the differential, but does nothing to the "weak link" in the 7.5" 10-bolt, which is the pinion / bearing / housing area. The shorter distance from the nose of the pinion to the rear axle C/L results in more reactionary force being applied on the nose of the pinion for a given tire-torque level than for a 8.5" or larger rear. If you have an auto and stock-ish street tires, it'll probably hold up (and produce nice smoke-shows), but meaty rear tires and hard launches (or hard shifts w/ a manual) will kill it, even at stock-ish power levels. Ask me how I know.

My recommendation is to not drop a dime on the 7.5" 10-bolt and upgrade to something beefier.
Well upgrading to something bigger is going to cost probably over 4k easily. If I can even find something that will fit. Otherwise a solid axle swap is my only choice but that's very expensive
Old 05-08-2024, 10:33 AM
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Originally Posted by dillpickle1
Well upgrading to something bigger is going to cost probably over 4k easily. If I can even find something that will fit. Otherwise a solid axle swap is my only choice but that's very expensive
?? what ??
Old 05-08-2024, 11:13 AM
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if this is a f body your talkin bout yes you have a straight axle . me personally i wouldnt put much money in it ( ive blown 4+ and dont have much faith in em) others will say they can live a OK life if auto and no sticky tires but ive killed every 10 bolt ive ever owned, a strange s60 with a s trac will live through almost anything. go look at midwest chassis to get an idea of what your getting into.
Old 05-08-2024, 12:30 PM
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Originally Posted by Kjduvall
if this is a f body your talkin bout yes you have a straight axle . me personally i wouldnt put much money in it ( ive blown 4+ and dont have much faith in em) others will say they can live a OK life if auto and no sticky tires but ive killed every 10 bolt ive ever owned, a strange s60 with a s trac will live through almost anything. go look at midwest chassis to get an idea of what your getting into.
I'd rather not spend a fortune on a solid axle swap but if that's my only choice.
Old 05-08-2024, 03:51 PM
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What model/year car do you have?
Old 05-08-2024, 04:08 PM
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Originally Posted by Kjduvall
if this is a f body your talkin bout yes you have a straight axle . me personally i wouldnt put much money in it ( ive blown 4+ and dont have much faith in em) others will say they can live a OK life if auto and no sticky tires but ive killed every 10 bolt ive ever owned, a strange s60 with a s trac will live through almost anything. go look at midwest chassis to get an idea of what your getting into.
Originally Posted by JohnnyBs98WS6Rag
A girdle cover w/ preload bolts stiffens up the housing and helps stabilize the differential, but does nothing to the "weak link" in the 7.5" 10-bolt, which is the pinion / bearing / housing area. The shorter distance from the nose of the pinion to the rear axle C/L results in more reactionary force being applied on the nose of the pinion for a given tire-torque level than for a 8.5" or larger rear. If you have an auto and stock-ish street tires, it'll probably hold up (and produce nice smoke-shows), but meaty rear tires and hard launches (or hard shifts w/ a manual) will kill it, even at stock-ish power levels. Ask me how I know.

My recommendation is to not drop a dime on the 7.5" 10-bolt and upgrade to something beefier.

What gear ratio were you guys running when you killed them so easily?
Old 05-08-2024, 04:12 PM
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Originally Posted by LS1Formulation
What model/year car do you have?
09 h3t
Old 05-09-2024, 06:52 AM
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Originally Posted by Kfxguy
What gear ratio were you guys running when you killed them so easily?
3 of them 3.23 with ls1 stock internal, stock head ,big cam , intake/headers/true dual ,3600+ stall ,umi long arm , legit street tires no drag set up at all. the other two were in s-10 square body, belive it or not a hopped up berreta 3.4 motor with nitrous, in place of a blown turd 2.8 . i just cant do the hole 10 bolt thing..... now a full size truck 10 bolt (8.5 ring) can live if you stud the main caps use a good locker and a diff girdle, thats what my procharged 4.8 with nitrous and 35 in tires and 4.88 gears was rockin, i dont have it anymore but still see it out on the street every now and again. looking at op last post i think he has a hummer h3 truck im guessing, and that might be a 8.5 10 bolt.
Old 05-09-2024, 08:03 AM
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Originally Posted by Kfxguy
What gear ratio were you guys running when you killed them so easily?
Stock 3.42 (M6), motor is all stock except for a lid, 160 T-stat and an HPP3 tune. The link in my sig tells the story in more detail.

Originally Posted by dillpickle1
09 h3t
Well, that probably explains some confusion here, thus my comments are hardly applicable.
Old 05-09-2024, 09:22 AM
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Originally Posted by dillpickle1
09 h3t
H3T already has a solid rear axle, the truck 8.5".

All these guys have been thinking you have an F body 7.5" ten bolt.
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Old 05-09-2024, 09:31 AM
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yo this was confusing. So you have an H3T and not an Fbody....all the images i see online show a solid rear axle for the H3T. Maybe check h3 forums?
Old 05-09-2024, 09:51 AM
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Originally Posted by autogeek23
yo this was confusing. So you have an H3T and not an Fbody....all the images i see online show a solid rear axle for the H3T. Maybe check h3 forums?
Sadly there's like.. 3 people on the h3 forums making any decent power. The h3 does have a 8.6 for the rear. But a 7.6 for the front. I feel like my only options to go with less power or do a solid axle swap
Old 05-09-2024, 03:58 PM
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7.5 is garbage. Call quick performance. Won't cost 4k. Maybe 2800-3200 for rear end. If you get a new torque arm and lower control arms then I'd see it getting closer to 4k. But if you plan on making 500hp then you should already have these things...
Old 05-09-2024, 04:18 PM
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Here's your answer: https://hummer4x4offroad.com/forum/t...e.14007/page-5
Old 05-17-2024, 07:54 AM
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Wow.... maybe a better explanation if the first post?? Lol

I wouldn't worry about the front diff u less your planning on a ton of boosted launches
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Old 05-17-2024, 09:42 AM
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TDP is who I have always used. Jason has always been fair and honest.
Old 05-17-2024, 07:35 PM
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Originally Posted by Ls7colorado
Wow.... maybe a better explanation if the first post?? Lol
This right here. State some details not something about on par of trying to get information out of a 6yr old.

People expect you to read their fckn minds....

For everyone else who hasn't caught it yet from the very detailed initial post, this is the FRONT Diff in a Hummer H3....
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