Technical Lowering block offset

Hey guys.
Anybody have the right messurement for the offset thats needed when lowering a 51 chevy with later(56) rear Axle?

Thanks

 

You didn’t place masking tape on the wheel opening then mark the centerline of the original rear with a plumb bob?

 

no, i didnt think that far. Besides, the old Axle didnt sit that good in the opening either.
And, theres probably several here that runs the same Axle. Thats why i ask.

I have messured the offset perch on a another orginal axle i have, and seems about 1,5 inches.

 

If you ask other people for a number, you won't get the number that makes it look good to you.

But yeah, 1.5 will be close. Best plan is to put the thing together without holes and move it till you like the look, then mark it, drill holes, and you're done.

Take your time deciding though, because you'll have to live with it. Don't be in a rush.

 

Then just like Jim said, put rear where you want it so your wheel and tire sit as you like it.

 

Good point. Didnt think about personal taste here.

 

I think im going to drill several holes so i can adjust it to taste.
The center one is still center so drill and tap the oposite side so i can adjust the bolt or vise versa.

 

1.5 is the number

 

You can't put the holes very close together, so you'll be stuck with increments of about 5/8" if you drill more than one hole.

 

Why not use wood of proper thickness and width and make a hole for the leaf spring only then hold rear in place with u-bolt’s? This way you can make adjustments by sliding rear to where you like. Then mark wood on top side as to where centering pin will finally be placed.

 

Thats also a way.

 

When I did one I turned the leaf springs 180 degrees. Put the front towards the back.

 

^^^^^