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NP203 linkage Q
- Thread starter Holey76 - Square Nut
- Start date
Thats awesome to know ! Now i can look with an eye for that type bolt ! Thank you.
They look like what was discribed by wes, and are spicer, but they're sold out. Go figure.
This should be the retaining hardware ( the ones with the strap are a different animal ) - note the larger shank section of the bolt that puzzle pieces into the CV . Included a part number for reference.
The ones I have are 5/16-24, 1.3" length without a larger shank. I think they are factory but it's too old to tell for sure.
Am pretty sure @tarussell post is what I am going to need. I found some $21. for 4 and 18 to ship yikes, not many places had them. I think the @HankScorpio might be the same as I posted with the straps.
Now to find a drive shaft.
Now to find a drive shaft.
Probably a few sets, partially organized so it will still take a day to dig them up.
Might be differences in years made ? - I guess the way to know for certain is look at the female side and see if it’s machined for the same depth/diameter as the shanks on either type of bolt hardware.
Probably not wise to use a lesser dimension shank in a place originally designed for the other type.
I may have that too, I'll look at the shelf tomorrow.
No front driveshaft for that style CV but I do have a bin full of bolts and straps. I would just need dimensions to check against to verify I have the right ones.
Might need to see if ya’ gotta a front T-case matching yoke for Wes as well to match the Spicer CV .
The older 10-spline stuff and other makes of 32-spline yokes are common but I can’t say I’ve ever seen a GM sized 30-spline Spicer style yoke ? Not say’n they ain’t made - just never ran across one.
yeah I need to remove that yoke and measure. Today I was checking it out some the yoke ears that the bolts go through are deeper than the front yoke. I think those long shanks are a match depth wise. Am wondering if these are .312 bolts that Spicer seems to differentiate from normal 5/16. There must be a reason.
I think you are right - look at the shank differences in KennyW’s spare hardware bucket. Keep it all matched up .
I have a clearance issue with 700r4/short output shaft np205. I believe the best results are going to be the older 1310r cv drive shaft.
I was going to change front output shaft and use the 77 np203 driveshaft and flange. till I really got a good look at my clearance.
The later Saginaw style CV’s are really limited on rotational angle clearance and might be a little longer in length ( compared to the 1310 Spicer CV ) so that may have given you some trouble on the 700’s oil pan clearance.
If you are alright with doing away with a front CV shaft a high clearance yoke at the T-case should keep everything away from the trans pan with ease.
As long as you are not desert racing at high speeds in 4WD or in snow at highway speeds I doubt you’d ever even notice a vibration.
We use to do this on GM squares back in the day because the TH350/205 & pre 1985 465/205 combos had such a short shaft length a CV could not handle the angles once we lifted the trucks to an appropriate height for play’n in the swamps.
I realize that you don’t need to drop the CV for the same reason but it would get you away from the real estate that your needing to avoid.
Also, I’m betting that your front 205 output is the older 10-spline and I think that a yoke and shaft might be able to be found in the bone yards as it was more common in the older stuff across the board .
Might be a cheap way to get a front shaft back in the truck.
Yoke pictured looks like what I have on the t case. Yes is ten spline.
I am going back to stock trans pan soon.
I am going back to stock trans pan soon.
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Wes, I was thinking about the clearance issues you got with the 700R4 swap out from a TH350 and it got me wondering if the reason for GM hacking off the passenger rear corner of the TH350 is for clearance on a 4x4 application.
The TH350 debut in 1969 and the same for GM’s auto trans mated to a T-case in the K/5’s, 10’s & 20’s making it easy for them to engineer it in at the beginning of its production - just might have been designed with that corner missing to make it fit damn near all things GM at the time, including 4x4’s….
Alright random thought and temporary high-jacking of this thread over with - y’all please continue with the regular scheduled programming.
You may well be correct !!
Wes, im just seeing these pics: it looks like those bolts resemble header bolts ?
Header bolts are typically 3/8" dia and are really short compared to what you need.
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