Lowering blocks on rear leaf springs

olddog67 · May 2, 2017

My car sits too high in the rear, with 255/60's in the rear I can see at least 2 inches from the top of my wheel well opening to the top of the tire. Can I put a 2" lowering block between the leaf and housing without affecting my drive shaft angle?

PurpleBeeper · May 2, 2017

Yes, you can do that. I'm running 2" lowering blocks now. I bought the "generic" ones from AutoZone I believe. They're packages as 2" lift blocks, but since Mopar leaf springs are below the rear end they work as lowering blocks for us. I did have to slightly file/sand the locator pin (on the lowering block I think - can't remember), but they come about 99% ready-to-go. You'll also need longer u-bolts, but that's OK since cutting off the old ones is BY FAR the easiest way of removing them.

brian6pac · May 2, 2017

I had 1" lowering blocks and it put my drive shaft almost straight but still had some down angle so it was o.k.
I would definitely check the angle after you go 2".

69L48Z27 · May 2, 2017

You can also add degree wedges later if it's an issue, DS angle.

rumblefish360 · May 2, 2017

What is the Proper drive shaft angle?

69L48Z27 · May 2, 2017

There's two things that I go by. You may have opened up a can o'worms asking. Alsways a big debate.

1. You need some load on the DS u-joints. Equal'ish and opposite for. Yoke to pinion. 2-3*.
2. From drag racing we always put a leaf spring pinion 4-5* pointing down. Sometimes more.

Tremec has a pretty handy app for your phone to measure everything.

67coronetman · Jun 3, 2019

Anyone have any before and after pics of the car lowered in the rear using lowering blocks.

Lowering blocks on rear leaf springs

olddog67

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PurpleBeeper

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brian6pac

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69L48Z27

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rumblefish360

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69L48Z27

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67coronetman

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