Is the shelby drop where the upper control arms are lowered by 1 inch? Does it raise the front end of the car and what would i do to compensate in the back end?

 

Yes it is where the UCAs are dropped 1 in. No it does not raise the front end up. You will need an alignment afterward though. You can get the specs from this site.

 

Thanks, This is something I am going to do

 

Best thing since sliced bread. The operation lowers the front end about 5/8". That's not why you do it, though, the gain is in the change in geometry.

http://site.cobranda.com/tech/aarms.pdf

 

Shelby drop + roller perches = win

 

i love the change in handling on mine. it seems to settle into corners alot faster and feel more stable. the tires dont squal as easily while cornering. the stance is a great bonus.

 

The Shelby drop requires a 17/32" drill bit for the hole.
That is only 1/32" above a 1/2" bit,so it is not much.

Can you just VERY carefully hog the hole out just with the 1/2" bit or use a file to get the hole big enough?

The only 17/32" bit I can find are 1/2" shanks and I don't have a 1/2" drill, not to mention they cost around $15 for a bit I will only use 4 times.

I cannot see that it would make that big a difference to the front end if you just hog the hole a little bit with the 1/2" drill bit or use a file to get that lousy 1/32".
Anyone else do this?

Lynn

 

a $15 drill bit probably wont last 4 holes......

 

I used a 1/2" bit on my 67 to do the drop.

 

When you need to drill a big hole in heavy steel, start small and work your way up. Drill a 1/8th pilot, 1/4" and so on. This will make your pricey 1/2" last a whole lot longer. Also you can oil the bit as you drill.