Advise on which tunnel mod kit for LS3 w/T56 Magnum in 1st Gen?

[Musclerodz]

Speedtech make a complete kit to make this a very simple deal.

[Nativefx]

I wasn't sure if their kit worked with a stock subframe or just one of theirs? I've also been looking for some other threads where people were discussing some of the issues with certain tunnel mods, but i can't figure out which forum I read this in and i don't remember which they had the best luck with once everything was finished. I don't mind modifying my tunnel, but I want to make sure I get the proper driveline angle.

Originally Posted by Musclerodz

Speedtech make a complete kit to make this a very simple deal.

[Vega$69]

With a stock sub you will need to

#1 Cut approx 8" wide by 20" long hole in the tunnel from about 3" behind the shifter. Then lift the tranny at the crossmember to the proper angle. Build a sheet metal box as needed to cover the hole and cut out the hole for the shifter.

#2 Raise the top of the tunnel by cutting the vertical sides just below the radius and once new height is determined weld in a strip of metal on each side and boxing the ends.

#3 Skip all the crap and buy a pre-made fabbed tunnel plate.

[jlwdvm]

The Hooker system of motor mounts and cross member were a breeze to install and I didn't have to make a single dimple to the tunnel and had 3 degrees of angle to my LS3- T56 after installation.

[Nativefx]

Do you have a T56 Magnum, or a regular T56? I'm interested in looking at the Hooker system as well, but haven't been able to confirm if I can get the proper clearance and angle with their setup. If I remember right, the headers would also need to be modified to make room at the steering box? Not a deal breaker, but want to make sure I look at all my options.

thanks

Originally Posted by jlwdvm

The Hooker system of motor mounts and cross member were a breeze to install and I didn't have to make a single dimple to the tunnel and had 3 degrees of angle to my LS3- T56 after installation.

[jlwdvm]

Originally Posted by Nativefx

Do you have a T56 Magnum, or a regular T56? I'm interested in looking at the Hooker system as well, but haven't been able to confirm if I can get the proper clearance and angle with their setup. If I remember right, the headers would also need to be modified to make room at the steering box? Not a deal breaker, but want to make sure I look at all my options.

thanks

http://www.pro-touring.com/threads/1...ar-build/page4
I have a Magnum behind my Texas Speed LS3. I also used Hooker 1 7/8" headers. They don't have to be modified to clear my Lee 600 steering box, but the box has to be out to get the drivers header installed (at least I couldn't figure out how to wiggle it in there with the box on the sub). A header tube will have to be dimpled on each side to clear the Tru Turn tie rod ends if you go that route, nothing major though.

[alongfortheride]

Used a Speedtech tunnel and it works great.

[Nativefx]

Haha, yeah Vega$69 I'm hoping to get confirmation I can go with #3 and get all the necessary components to go in correctly!

thanks for all your help!

Originally Posted by Vega$69

With a stock sub you will need to

#1 Cut approx 8" wide by 20" long hole in the tunnel from about 3" behind the shifter. Then lift the tranny at the crossmember to the proper angle. Build a sheet metal box as needed to cover the hole and cut out the hole for the shifter.

#2 Raise the top of the tunnel by cutting the vertical sides just below the radius and once new height is determined weld in a strip of metal on each side and boxing the ends.

#3 Skip all the crap and buy a pre-made fabbed tunnel plate.

[Musclerodz]

Originally Posted by Nativefx

I wasn't sure if their kit worked with a stock subframe or just one of theirs? I've also been looking for some other threads where people were discussing some of the issues with certain tunnel mods, but i can't figure out which forum I read this in and i don't remember which they had the best luck with once everything was finished. I don't mind modifying my tunnel, but I want to make sure I get the proper driveline angle.

Works with stock frame. Just installed their engine mounts and crossmember with a GTO 6 speed, no tunnel mods. If you have a Magnum you will have to use their tunnel box.

[randy]

i had to use the chassis works tunnel cap with my t56 magnum. If you are in this stage my opinion is to buy this for $100 and install it. I would rather have the extra room now just in case something changes in the future. Cheap insurance. The crossmember has nothing to do with tunnel clearance. Trans and engine angle and position all do. as far as shifter access goes buy brian finch billet shifter ring.
DSE subframe
ls3
t56 magnum
Car is very low