I know that, but someone had brought up the B Body, thats why I am asking.
So again, I am asking what are my options for spinning both tires
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8.5 in rearend
- Thread starter Billy1979malibu
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So again, I am asking what are my options for spinning both tires
What year is it? Pre 88 are 28 spline axles. 88-up are 30 spline.I know that, but someone had brought up the B Body, thats why I am asking.
So again, I am asking what are my options for spinning both tires
Stay away from the junk Gov Locks out of trucks.
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I haven't assessed this 8.5" I bought today yet, but I'll likely buy a kit from quick performance for posi and axels. If I reuse nothing but the housing, If I can go to 30 spline, might do that. Maybe trutrack if price is within a $100 of clutch posi. I wonder If the '75 Seville disk kit from inline tube will fit, since I got no brakes to start with.
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Not sure what size wheels you have but I'd do 98-04 Blazer or the 98-02 F body rear discs before using old iron caliper set ups. You need 16" or large wheels for the F body discs
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I have the blazer disks up front, so I should do the blazer disks in the back and change the proportioning valve and change the master cylinder too. Just make it all blazer, right? I have 17" wheels.
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Yes master and prop valve. I used a master for an 80 Riviera with rear discs.
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Greetings guys; Nice write up fellas, very informative. This 8.5 was from a Buick open (?) 3.43. I had replaced ALL the internals & had some gussets welded on tying the tubes & mounting points together for additional strength. Ole' Bob.
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I know you stated you didn't want a 9" in your car because it's a Ford even though in the long run it would have cost less, but if you only end up using the crusty 8.5 housing with unknown history that cost $1300 plus I assume fuel and 7 hours of your time wouldn't it have been a better option just to put that towards a new bolt in 12 bolt to keep it GM and be stronger? Obviously it's more money but it's new and has never been abused or even had rust on it.
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Your argument is solid, though I think rust on a casting this thick is no big deal. I believe the spring perches are solid enough to use as is, although the corrosion has reduced their thickness noticeably. I'll get a couple opinions on that and maybe have new ones welded on.
$300 Axels
$600 QP posi and bearings kit
$20 Rattle can black
$100 seals, gear oil, etc.
$300 tools
That's $2600.
If I need help, add $500 labor.
That's $3100.
I've seen a bolt-in 12-bolt for $3300 no brakes on clearance from a shop in Ohio (attached). Customer didn't take receipt. No brakes.
I'll probably spend $500 on brakes and hose.
So, it IS pretty close to a wash, but my decision was based on belief I would spend $4k on new 12-bolt. I think the 8.5" will be rebuilt and installed for $3000.
I've been looking in to this for a while. I don't have buyer's remorse (yet). It'll work out.
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