Driveline angle questions with Speedtech components

[dontlifttoshift]

Based on that information, you're math is correct.

If you roll the pinion down, working angle at the trans becomes less and working angle at the pinion becomes more.

If you go up on the pinion, angle at the trans is just going to get worse.

[dhutton]

I could be wrong but I think you either need to raise the transmission or increase your ride height.

Don

[cpd004]

That's what I was worried about. There is definitely no way to go up at the trans as of right now.

The tunnel is tight and would likely have an issue with the trans dipstick, lines, the exhaust is rigid, etc.

I'm not 'as low as I can go' IMO. Speedtech says their subframe is engineered to have 5" of clearance from center cradle to ground. It's been a while since I measured, but I believe I was closer to 6.5"

I'll call them again.

All of that bolted in without issue so I'm not sure where the problems are. I have an early subframe. The trans cross member has been redesigned since then and is not interchangeable.

[cpd004]

This is where we are after back-and-forth emailing.

I sent them pics of the exhaust clearance, motor mounts and trans mount. Now they are saying I need to cut the tunnel out and raise it! I bought this subframe because it required NO cutting or welding of any kind to run the engine and trans I had.

After that, in addition to the 4 below and one above the trans mount, I have to add an additional 1/2" of shims!!

[dhutton]

Originally Posted by cpd004

This is where we are after back-and-forth emailing.

I sent them pics of the exhaust clearance, motor mounts and trans mount. Now they are saying I need to cut the tunnel out and raise it! I bought this subframe because it required NO cutting or welding of any kind to run the engine and trans I had.

After that, in addition to the 4 below and one above the trans mount, I have to add an additional 1/2" of shims!!

The whole tunnel or just under the transmission?

[cpd004]

Just the trans portion.

[dhutton]

Originally Posted by cpd004

Just the trans portion.

Speedtech sells that T56 tunnel which can be installed with screws etc if you don’t want to be welding on your car.