GMT 800 10 bolt in 87 K5

[K5Rob]

Will the GMT800 2wd 10 bolt rear end bolt up in an 87 K5 Blazer?

 

[legopnuematic]

Mounts and spring perches will need to be cut off and have new ones welded in in the correct locations.

 

[Zelph]

^ which isn’t worth it for another 10 bolt, imo.

 

[HotRodPC]

I'll agree with both above comments. Yep, gotta move the mounting pads, and it's not worth it for another 10 bolt.
They're a bit harder to find, but there is such thing as a Light duty 3/4 ton rear axle that's 6 lug if you want to keep the same front axle. It's a GMT400 series truck and is a 9.5 Semi Float rear axle.

 

[K5Rob]

Thanks for the info. I have a GMT800 10 bolt from my personal truck that is recently rebuilt and 4.10 geared. Plus it has disc brakes. Was trying to decide if i want to sell or keep it

 

[K5Rob]

Im good on a welding machine. Where can i source new perches? If its cheap i may consider it. Had it up for sale over the winter and no bites.

 

[Strick]

Be careful & precise when torching or plasma removing the perches & you'll ll be able to re-use them. Be advised that the width of the rear is wider as well.

HS

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[legopnuematic]

Perches and mounts can be bought from numerous sources. Barnes4wd, summit, jegs, your local auto parts might carry the spring perches.

 

[Zelph]

Im good on a welding machine. Where can i source new perches? If its cheap i may consider it. Had it up for sale over the winter and no bites.

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