I need the Spicer number for the front front drive shaft ujoint. the one at the pinion.
No one carries it here, it has two different sized caps. 1 1/8" and the other is 1 1/16".

 

mine has 2 different sized caps as well, I crawled under my truck and tried to measure it but I thought it was 1 inch and 1- 1/16 any way My drv shaft came from a 1500 truck and the only change was that it had the weird u-joint, I used a percision brand u-joint part # 354 that might help if you can cross it over.