Driveshaft U-Joint Question

Driveshaft Universal Joint Part number

Spicer 5-1310x or 5-153x

Opinions and experiences please.

Thanks
5-153x is Spicer 10 Series greaseable and 5-1310x is SPL non greaseable. There is also 5-1310-1x that is SPL greaseable you can use now as well. The SPL are much better choice as they have better seals and a denser cross that is tougher.
 
iirc the 153x is the greaseable u-joint. Most people here will say you want the non-greaseable u-joint, which is the 1310.