Capacity of dropped spindles

[RidersNation]

I have a 68 GMC Burb, that has a 73 Malibu SS-454, 4-Speed Wagon Motor, I was about to trade it for an LS but when I found out via Research it’s a keeper, (one of 60), Has been gone through and is now a 468, My question is since it’s heavier what spindles would be strongest? Was told not to go 2-1/2 or 3”, due to weight, it’s about to go through full redo, as soon as we move to new place. I’ve seen many BBC A and F Body’s with dropped spindles, but they aren’t trucks.. I thank you all for any answers or input,


It will sit on 20s, 2600 bags and HD A arms, maybe go with Lay arms,it will be just close to layin’ out,

Roy
PS it’s already sittin on a Pro Hopper 2 pump 4 dump system and I have got everything to convert to bags, I carry My Hayabusa in the back so I can only bring the floor in rear up 2”.
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[LockDoc]

Originally Posted by RidersNation

I have a 68 GMC Burb, that has a 73 Malibu SS-454, 4-Speed Wagon Motor, I was about to trade it for an LS but when I found out via Research it’s a keeper, (one of 60), Has been gone through and is now a 468, My question is since it’s heavier what spindles would be strongest? Was told not to go 2-1/2 or 3”, due to weight, it’s about to go through full redo, as soon as we move to new place. I’ve seen many BBC A and F Body’s with dropped spindles, but they aren’t trucks.. I thank you all for any answers or input,


It will sit on 20s, 2600 bags and HD A arms, maybe go with Lay arms,it will be just close to layin’ out,

Roy
PS it’s already sittin on a Pro Hopper 2 pump 4 dump system and I have got everything to convert to bags, I carry My Hayabusa in the back so I can only bring the floor in rear up 2”.
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I had to look up Hayabusa..... I had never heard that name before.

I don't know about the 3" but there are a lot of big block trucks running around with 2 1/2 dropped spindles.

If you don't get any replies I will try moving this to the suspension forum.

LockDoc

[lolife99]

Originally Posted by RidersNation

I have a 68 GMC Burb, that has a 73 Malibu SS-454, 4-Speed Wagon Motor, I was about to trade it for an LS but when I found out via Research it’s a keeper, (one of 60), Has been gone through and is now a 468, My question is since it’s heavier what spindles would be strongest? Was told not to go 2-1/2 or 3”, due to weight, it’s about to go through full redo, as soon as we move to new place. I’ve seen many BBC A and F Body’s with dropped spindles, but they aren’t trucks.. I thank you all for any answers or input,



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I'm not sure who told you this, but in my opinion this is not correct.
Any 2", 2.5" or 3" drop spindle will be fine.
I prefer ECE (Early Classic Enterprises), Belltech, McGaughy's or Western Chassis.
Is your truck still drum brake or has someone converted it already?
Buy 63-70 conversion spindles for the easiest install.
If its been converted to disc already,... you will need to know what year stock spindles are on your truck now.

[RidersNation]

It’s drum but I will move to Disc CPP kit, The question is because the stress point on the 3” is lateral if it’s cambered but I believe it’s gonna be fine, I know certain brands are thicker. I will probably go with 2-1/2” but I wanted to keep it as close to NOT bottoming out , but being able to get it down, Lock Doc here is a pic of one of my bikes I do Custom airbrushing so I’m gonna do truck like bike.
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