Transmission Shield
 

Hi: When is a Tranny shield needed? Just had the Firebird out and ran a 10:30 at 132 mph.

I installed a JW bellhousing on the TH400 this year so Flexplate area is done.



Thanks
Charles

Pretty sure a tranny blanket is needed at the same time a 6pt roll bar is needed. 11.5 ET or something close to that

Sent from my SM-G965U using Tapatalk

Yes, trans shield required at 11.49 et same as a roll bar, harness and fire jacket.

More stuff required at 9.99

Ok guys, Thanks I was under the impression it was needed at 10.99 to 9.99.

I use a DJ Safety TH400 trans blanket, nice piece.

Thanks AG, I'll check it out. Dam just ordered a starter from these guys a month ago.. Could have bought it then...

U need a trans blanket at 10.99 I believe

Ya that's pretty much what I have found out now. Have one on order now. Thanks for the info Darby.

SFI SPECIFICATIONS

Mandatory at ET (or quicker) Item SFI Spec
13.99 Drive shaft loop (slicks)
13.99 Helmet (Snell K98+)
13.49 5-pt harness (convertible) 16.1
13.49 Approved rollbar (convertible)
13.49 (IHRA) Drive shaft loop (slicks)
11.49 Drive shaft loop (street tires)
11.49 Approved flywheel & clutch (manual transmission) 1.1, 1.2
11.49 Approved protective jacket 3.2A/1
11.49 Approved roll bar for all vehicles
11.49 Approved 5-pt harness 16.1
11.49 Approved flywheel shield (manual transmission) 6.1, 6.2
11.49 (IHRA) Approved mounted fire extinguisher
11.49 (IHRA) Approved flywheel shield (automatic transmission) 4.1
10.99* Approved roll cage (convertible)
10.99 Approved harmonic balancer 18.1
10.99 Approved aftermarket axles
10.99* Approved transmission shield (automatic transmission) 4.1
10.99 (IHRA) Competition License* Class D
9.99 Approved flexplate & shield (automatic transmission) 29.1, 30.1
9.99 Approved roll cage & window net* 27.1
9.99 Master cutoff switch
9.99 Competition License Class 4, Cat. C
9.99 Chassis Certification
9.99 Approved jacket/pants/neck collar/gloves* 3.2A/5, 3.3, 3.3/1
9.00 (IHRA) Roll cage & window net
8.99 (IHRA) Competition License Class C
8.49 On-board fire system
8.49 to 7.50 Chassis certification 25.4/25.5 (3600#)
7.99 (IHRA) Competition license Class B
7.49 & quicker Chassis certification 25.1E (2800#)
7.50 & slower Chassis certification 25.2 (3200#)
7.49 Competition license Class 3, Cat. C
IHRA Pro Stock Competition license Class A
150mph + Parachute required
200 mph + Head & Neck Restraint required

* Also required for 135 MPH or faster

Oh crap - really.



And a trans shield meaning a blanket or shield over the case?

Thanks Old Goat Racer for taking the time to post that info..

Charles

Thanks for the link Skip. It's too bad they don't make just the trans shield without the bell housing part. I've seen it in metal.

Yes. From what what my understanding is now, you have to have a SFI Spec 30.1 bellhousing or a shield over the stock bellhousing. and a SFI spec 4.1 tranny blanket or Tranny shield. You can buy in two piece configuration or as a complete unit that bolts to belt housing.

Generally do they fit in a stock trans tunnel?

I don't know. I installed a JW bellhousing when I built our TH400, so that takes care of the bellhouing area. J.W. bellhousing is spec 30.1 I just need a tranny shield. I ordered a blanket from Good Vibrations.

SNUG, but yes. In my 70 GTO clone

CSR sheild fits in my 77 ta

CSR fits my 79 Camaro IA fine. The hard part is getting those top bolts in ! Be nice if you could use the JB bellhousing and then section that part off the CSR shield for just the tight tranny part.

I did have to grind down some ribs on the case for it to fit.

So how many of you all have had tech check for one? And if they checked date on it?

They always checked that I had one but never checked the date thank goodness. Pretty tough to read the sticker, you can just barely see it down in the tunnel.

Ears needed ground off my T400 for the shield to fit.