Rear axle swap

[matuva]

Recently, my Blazer was hit on passenger side by a M****r f*****r who was exiting a parking without checking if somebody was coming...

Had it repaired and repainted at a body shop, but now, it seems that the rear axle tube shaft is possibly bent on that side, and the drivetrain can't be properly re-aligned.

Mechanic says this can't be repaired.

So, I believe I need a new rear axle :mad5:.

According to VIN, I have a 10 bolts GT4 AXLE,REAR,3.73 RATIO 3.73R(GT4).

Question is: can I use a rear axle coming from a K1500 truck, a 14 bolts, as long as I have a GT4 3.73 ratio?

Somebody already did that? Plug and play or some mods to do.

May be should I take the opportunity to swap to a 2000 silverado (gasser) with brake disc if I need to modify somthing anyway?

 

[ak diesel driver]

if you can get a good price on the disc brake rear I'd go that way in a heartbeat unless it required alot of mods

 

[1995yukon65]

The semi floater 14 bolt from a light duty 2500 will bolt right in. Did it on my Yukon. As long as its a 6 lug you are good to go. The only thing that will need to be modified is your rear u-joint. Will have to use a saginaw-1350 joint if I remember correctly.

 

[matuva]

The semi floater 14 bolt from a light duty 2500 will bolt right in. Did it on my Yukon. As long as its a 6 lug you are good to go. The only thing that will need to be modified is your rear u-joint. Will have to use a saginaw-1350 joint if I remember correctly.

Any source for that? That's intersting, even though I don't tow... I've been browsing the web but can find any

 

[matuva]

If I install a 6 lugs rear axle from a 2000 suburban (5.7 gasser), would I need to change propeller shaft and/or U-joint?

 

[matuva]

Anybody knows if the "nose" of a 10 or 12 bolts rear end is the same length of a 14 bolts?
Is it necessary to shorten the propeller shaft in such a swap?

1995yukon65, did you have any problem with your propeller shaft?

 

[3500GMC]

The slip yoke will accomodate some difference. You of course don't want the yoke too far out or in the t-case or trans.

There are special 'swap' ujoints that are 1310 and 1350 to make it work. Never had to use one but have see them work out well.

1310 to 1350 was the two sizes IIRC...

There are 6 lug 'Salisbury' 14 bolt semi-float rears.

Something to read: http://www.hotrodders.com/forum/questions-gm-14-bolt-rear-71143.html

 

[matuva]

Thanks 3500GMC :thumbsup:

Though what is a "salisbury" rear ??

 

[3500GMC]

Maybe not the right name for the 9.5" GM 14 bolt SF rear.. I've always called them the Salisbury 14 bolt. Must be local vernacular.. All the truckin friends I have around these parts know what it means.

 

[6.5L]

a 6 lug 3/4 ton axle? Are you talking about the Heavy-Halfs?

 

[3500GMC]

They used them in 6 lug Tahoes and even a 5 lug version in the 454SS truck, light duty 3/4 ton 2500s.. and others that aren't surfacing in the memory bank.

This:
.

 

[matuva]

Do thet use them in 6 lugs Suburban too?

I just bought one from a 1999 Sub with a 5.7 gasser engine

 

[Jorge6.5]

Did you go through with this swap yet? I've been doing reading and apparently all that needs to be done for the swap is a conversion u joint or simply swap the yoke from the 10 bolt to the 14 bolt semi floater.

 

[matuva]

Not yet, the rear axle has arrived but still sits in the crate. Tooooooo much things to do, not enough hours in a day...

BTW, do the yoke interchange from 10 to 14 bolts?

 

[Chevypoor]

Was the axle from the 99 Sub a 4wd axle? The 2wd and 4wd LD ( 10 bolts, 14 bolt sf ) axles have different widths.

 

[JayTheCPA]

. . . not enough hours in a day...

But it is Fall there and the days are getting longer, so what is holding you back??? :hihi: