Need some help...can the Moroso 85810 be used on a Chevy 12 bolt that has the u bolt pinion flange? Thanks in advance

Application Notes Fits 1965-1982 rear ends with straps

Juhosaphat(Chad) in our NW section just bought those for his 12 bolt and they don't fit, he says they're about 1/8" too wide. I posted, saying I remember reading there were 2 different 1330 series yoke/u-joints for 12 bolts. You might want to PM him, ask him the dimensions of the yoke, u-joint, and girdles he has on hand. He might have a smaller size 1330 than you do.....no need to waste $26 though. He was also offering them up but I don't know if anyone is going to buy them.

Those have been used under my old '70 for years...and I assume they still are.

Juhosaphat(Chad) in our NW section just bought those for his 12 bolt and they don't fit, he says they're about 1/8" too wide. I posted, saying I remember reading there were 2 different 1330 series yoke/u-joints for 12 bolts. You might want to PM him, ask him the dimensions of the yoke, u-joint, and girdles he has on hand. He might have a smaller size 1330 than you do.....no need to waste $26 though. He was also offering them up but I don't know if anyone is going to buy them.
stock pinion yoke flange was the 1310-series in both u-bolt and strap+bolt.
the girdle aftermarket units only fits on the strap and bolt style yoke.
if you already have the u-bolt style yoke you don't need to upgrade unless you swap in a larger series yoke like a 1350-series.......:thumbsup:

unless you swap in a larger series yoke like a 1350-series.......:thumbsup:

Why do you say this? I have a 1350 yoke on my Moser 12 bolt, with u bolts. I am not producing huge amounts of hp. But, I do want to make my drive line as strong as it can be with the parts I have. I have looked into adding the Moroso girdle for 1350 yokes... #85830. How do these girdles handle street driving being they are aluminum? I would say my car is 90% street / 10% strip. Right around 350-375 rwhp based on trap speed and weight.

I have heard their main advantage is that they do not distort the u joint bearing caps like an over-tightened u bolt can?