recommended gearbox clearance?

Zedn · #1 (**permalink**) 04-24-2011, 02:38 AM

How much clearance is recommended between the gearbox and tunnel? I am running an ls3 with T56. I currently have about 20-25mm on each side, which seams like enough but would hate to start her up and have rattles.

Cheers.

Rob. Smith · #2 (**permalink**) 04-24-2011, 02:49 AM

G'Day Liam,
I have urethane engine mounts and about 10 mm between the bell-housing and the chassis on each side. My tremec is pretty close to the tunnel above and I'm having a small problem with the new rubber gear-stick boot...being new and stiff it actually pulls the thing out of gear when I'm in top and just coasting. It's fixable.

Gaz64 · #3 (**permalink**) 04-24-2011, 04:35 AM

Most would consider 10mm as acceptable minimum clearance.

If your mounts allow more flex than this, then they aren't up to the task.

20-25mm is plenty.

jcraigau · #4 (**permalink**) 04-24-2011, 06:30 AM

If it was knocking at 25mm I'd bolt it in!!!

Tenrocca · #5 (**permalink**) 04-24-2011, 06:38 AM

I concur - more then enough.

Zedn · #6 (**permalink**) 04-24-2011, 04:16 PM

Thanks. I think im just being over cautious