Engine/Transmission (1998.5 - 2002) clutch question, 01 HO clutch on a 99 truck?

[GOT-Torque]

Can you install a stock clutch off of an 01 HO (13" clutch big input shaft) on a 99 truck if you change to the bigger shaft? I've already got a 13" flywheel off of another truck (was bought as an upgrade from the 12. 25 for the previous owner).

 

[Fogie]

Yep... Sure can. Input shaft must be for the transmission in the 99... . 5 speed NV4500 transmission or 6 speed NV5600 transmission.

 

[Scrappy]

the input shaft has to be the '01 spec 1 3/8 shaft to work with the '01 flywheel and clutch. The issue might be whether the starter will work with the flywheel. One uses a spacer and the other did not.

 

[GOT-Torque]

So the input shaft from an 01 (1 3/8") will install into a NV4500 transmission (in the 1999 truck)? I thought the larger input shaft for a 5 spd was a custom thing? Probably wrong though.

 

[Supermod56]

You got 2 choices, either get another 13" disc from SBC with the 1-1/4" hub, or change the input shaft to the "Custom" 1-3/8" shaft, they aren't cheap! The one out of the 5600 does not fit the 4500. I changed to the 13" OFE with the 1-1/4" hub, and had to use the spacer for the starter, came with the kit.



Tom

 

[GOT-Torque]

Exactly the info I was looking for. Thanks...



I'll keep trying to get ahold of Peter at SBC