boot85

iTrader: (2)

When making your own engine mounts what is the angle you shoot for, I'm going to be building a drag car. If I remember correctly it's 5 degrees, but not positive.

garys 68

iTrader: (1)

Do a seach online. Lots out there on driveline angles. You want it to match the rear end angle. I think most reccomend 3 degrees down on the trans output, 0 degrees on the driveshaft, 3 degrees up on the front of the differential.

boot85

iTrader: (2)

that sounds right just haven't thought about it in a while

burbalanche

iTrader: (3)

right around the 5 deg. slope on the motor and close to a 5 deg up on the diff.will be good from what i was always told and read.thats about wat i did on mine!

darren roar

iTrader: (1)

I set mine at 0 degrees with the car on level ground

gMAG

iTrader: (1)

^^^There should be corresponding, matching angles at the trans & differential.
0 degrees will wear out your u-joints much faster.

darren roar

iTrader: (1)

My fault for not enough info. My carb mount is at 0. Before I measured the transmission shaft, it was at 15 degrees. My concern was driveshaft vibration. My pinion angle hasn't changed.

Che70velle

iTrader: (6)

I went 3* on my engine/tranny, and I have mocked the rear end at the same. I heavily modded my frame for autocross, and I put a lot of adjustability into the crossmember, to change my angle if need be. There is a tad bit of maneuverability built into my solid engine mounts I made, if the need arises to change the drivetrain angle. Build thread coming soon!

boot85

iTrader: (2)

So you take the angle measurement at the tailshaft of the tranny on the rear seal flange then match the rear pinion angle?

garys 68

iTrader: (1)

Yes, I had to get adjustable upper trailing arms to get my pinion angle up 3 degrees to match the trans angle down 3 degrees.
A quick google of driveshaft geometry will give pics...here.
http://www.hotrodhotline.com/md/html..._harmonics.php