What's a World Class T-5?
Senior Member
Joined: Jul 2002
Posts: 518
Likes: 1
From: Oklahoma
It is a slightly beefed up version of the T5. I broke my T5 behind my stock lb9 305. I've had the WC T5 behind a 350 that runs 13.6 at 106 mph for 40,000 miles now. I don't use slicks obviously, and don't dump the clutch. But I do shift hard between the gears when making runs and it's still alive.
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
IIRC 
the year was 88. There's a bolt on the driver's side, a torx 50 (non-WC has a 21 mm 6 point).
JamesC
the year was 88. There's a bolt on the driver's side, a torx 50 (non-WC has a 21 mm 6 point).JamesC
Supreme Member
iTrader: (1)
Joined: Feb 2000
Posts: 7,964
Likes: 4
From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Originally posted by JamesC
IIRC the year was 88. There's a bolt on the driver's side, a torx 50 (non-WC has a 21 mm 6 point).
JamesC
IIRC
the year was 88. There's a bolt on the driver's side, a torx 50 (non-WC has a 21 mm 6 point).JamesC
Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
WC T5 debuted in the V8 3rd gen mid '88. WC rated to 350 lbs/ft. NWC rated to 250 lbs/ft.
WC uses fiber lined black synchro rings, NWC uses brass.
WC uses tapered roller bearings on teh countergear, NWC doesn't.
WC has needel roller bearings under the speed gears, NWC ride the gears hard on the shaft with no bearing or bushing.
Get the tag number from the tailshaft housing and run it through the decoder at 5speeds.com This will tell you year and application as well as WC or NWC. The number you need will be 1352XXX. The last three are the important digits.
WC uses fiber lined black synchro rings, NWC uses brass.
WC uses tapered roller bearings on teh countergear, NWC doesn't.
WC has needel roller bearings under the speed gears, NWC ride the gears hard on the shaft with no bearing or bushing.
Get the tag number from the tailshaft housing and run it through the decoder at 5speeds.com This will tell you year and application as well as WC or NWC. The number you need will be 1352XXX. The last three are the important digits.
Member
Joined: Aug 2004
Posts: 239
Likes: 0
Car: 88 GTA
Engine: 305
Transmission: Manual
Originally Posted by TKOPerformance
WC T5 debuted in the V8 3rd gen mid '88. WC rated to 350 lbs/ft. NWC rated to 250 lbs/ft.
WC uses fiber lined black synchro rings, NWC uses brass.
WC uses tapered roller bearings on teh countergear, NWC doesn't.
WC has needel roller bearings under the speed gears, NWC ride the gears hard on the shaft with no bearing or bushing.
Get the tag number from the tailshaft housing and run it through the decoder at 5speeds.com This will tell you year and application as well as WC or NWC. The number you need will be 1352XXX. The last three are the important digits.
WC uses fiber lined black synchro rings, NWC uses brass.
WC uses tapered roller bearings on teh countergear, NWC doesn't.
WC has needel roller bearings under the speed gears, NWC ride the gears hard on the shaft with no bearing or bushing.
Get the tag number from the tailshaft housing and run it through the decoder at 5speeds.com This will tell you year and application as well as WC or NWC. The number you need will be 1352XXX. The last three are the important digits.
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Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Basically it's stupidity. A 305, especially a TBI made 300+lbs/ft. But the trans was only rated to 250. Probably why they break often.
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