Page 1 of 1

U20 Drivelines

Posted: Tue May 02, 2023 1:04 pm
by unklpat
As our roadsters age out, we should all be thinking about driveline health. No zerk fitting, combined with no grease or years of sitting does not a happy driveline make. I've just been informed of the 2nd driveline in 3 months that will need to be modified to make usable. I am worried about mine.
Apparently, our U20 cars use a .96" 18 spline that is hard or impossible to get parts for. The local shop is doing 16 spline 1.25" conversions with zerk fitting using a 1210 series u-joint. I am curious if anyone out there has or knows where the stock style parts can be located.
I would also urge everyone to grease or check for play in their own. Pat

Re: U20 Drivelines

Posted: Tue May 02, 2023 2:59 pm
by unklpat
I can not describe to you the carnarge that happens when a driveline fails at speed. Pat

Re: U20 Drivelines

Posted: Tue May 02, 2023 3:42 pm
by iloveredmeat
Sounds like this is right up there with going to the dentist and getting your blood pressure checked regularly.

You definitely convinced me to balance my 1600 5-speed conversion driveline before installation.

UnklPat for Health Minister!

Re: U20 Drivelines

Posted: Wed May 03, 2023 8:16 am
by bakerjf
“South Bay Driveline” in San Jose fabricated a brand-spanking new one with a zerk fitting and better/common u-joints for me about three years ago; works like a dream. Cost me about $300 IIRC.

Re: U20 Drivelines

Posted: Wed May 03, 2023 9:20 am
by redroadster
The reason stock ones didn't have a zerk was they are forged 4140 steel , and case hardened plated too it couldn't be drilled practical
The one with a zerk , are less substantial & rust easily on the outside ,we found just fyi