U-joint question

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May 20, 2016 | 06:50 PM

69mako

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From: USA. Northern Virginia

U-joint question

I had Spicer U-joints SPR 199 installed on my half shafts today....my question is, are they strong enough for the torque my stock 1994 LT-1 produces.

Thanks!

May 20, 2016 | 07:12 PM

John A. Marker

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From: Dublin CA

My research shows that the current U-joint from Spicer is listed as 5-3615-X. The number you are showing SPR-199 shows as discontinued.

May 20, 2016 | 07:21 PM

69mako

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From: USA. Northern Virginia

Quote:

Originally Posted by John A. Marker

My research shows that the current U-joint from Spicer is listed as 5-3615-X. The number you are showing SPR-199 shows as discontinued.

Does this # replace the old one?

May 20, 2016 | 08:14 PM

WVZR-1

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Quote:

Originally Posted by 69mako

I had Spicer U-joints SPR 199 installed on my half shafts today....my question is, are they strong enough for the torque my stock 1994 LT-1 produces.

Thanks!

I believe I've only ever seen that information on a Spicer "cross" and it's actually not a Spicer # for a u-joint package. Could it be on a 1350 series (correct for the half-shafts) but NOT a part #? Yes certainly. The SPR 199 might ID the "cross" as to how it's constructed, solid less a Zerk, with a Zerk or what-ever and likely the material. I would suspect it's solid with no Zerk but Spicer did a few different "grease-less" products. Your purchase was a non-Zerk product?

The part I'd think "very capable" - part # off of the box would ID the finish of the caps!!

Last edited by WVZR-1; May 21, 2016 at 08:32 AM.

May 21, 2016 | 08:28 AM

ex-x-fire

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Quote:

Originally Posted by 69mako

I had Spicer U-joints SPR 199 installed on my half shafts today....my question is, are they strong enough for the torque my stock 1994 LT-1 produces.

Thanks!

Are you drag racing with slicks on a daily basis? If not, then you'll be ok.

May 21, 2016 | 11:05 AM

Tom400CFI

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From: Park City Utah

May 21, 2016 | 12:06 PM

JrRifleCoach

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From: Freedom is never more than one generation away from extinction.

St. Jude '03 thru '24

I believe there were two different styles available for the C4.
Those with grease zerk fittings and those without.
The latter being prescribed for our Vettes.
I guess cross drilling for grease weakened the joint.

May 21, 2016 | 12:44 PM

John A. Marker

Le Mans Master

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From: Dublin CA

JrRifleCoach. U-joint without the zerk fitting is stronger and recommended for our cars. Unless you are drag racing constantly, either type should last you a long time with a stock LT1.