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Old 08-16-2011, 09:27 AM   #1
Qwiktripz1320
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Default 1310 pinion yoke limit?

I was under my hot rod last night doing some pinion angle measuring and was looking at the stock 1310 yoke. I have a stout 4" shaft with 1350 trans yoke but have a conversion joint to 1310 out back. I guess as changes were made, I never swapped it out. I remember a buddy telling me "it will act as a fuse" Also, I have some good USA joints but they still have zerks. 3600+lbs 900HP N2O Transbrake launches no issues. Am I pushing my luck?
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Old 08-16-2011, 12:57 PM   #2
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Default Re: 1310 pinion yoke limit?

YOU are so pushing your luck, are you saying you have a 1310 x 1350 conv joint back there ? dealing with 3600 lbs + 900hp + ___ n2o, and a t-brake.

I have seen some jump joints/ conv joints take some abuse, but i have seen more break than last
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Old 08-16-2011, 01:59 PM   #3
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Default Re: 1310 pinion yoke limit?

Its actually a 1310 to 1330 conv on the back I think. 650HP+ 200-250HP N2O. I guess I never replaced it because I didn't want to deal with crushing the sleeve again. I have quite a few passes on it, but.. also, the joints have a crown stamp on them and say USA. Any idea of brand and or quality? I had a driveshaft shop do it a couple years ago. Its a cast trans yoke that is either 1330 or 1350.
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Old 08-16-2011, 02:03 PM   #4
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Default Re: 1310 pinion yoke limit?

you are well past it...
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Old 08-16-2011, 02:37 PM   #5
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Default Re: 1310 pinion yoke limit?

When a u joint breaks all hell breaks loose, Im had one break in my 68 chevelle years ago with only around 400 hp and it tore shit up bad! I have my 68 nova now which makes maybe 600 on a small shot and I had the driveshaft built for it with 1350 u joints and a 3.5" cromolly shaft!!! Better safe then sorry I would say!
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Old 08-16-2011, 05:48 PM   #6
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Default Re: 1310 pinion yoke limit?

If you had a good sq 1310 in there i'd say ok, but conv joints don't seem to like that environment.

USA cast on the cross is usually precision/federal mogul, which was ok until recently when it is now using china, as is almost every joint manufacture but spicer at this time, spicer makes there caps here and there greasable crosses in mex, but that has been business for them for years. The crosses for the cold forged spl line are made here as well as the caps.

When the joint breaks you can expect it to do so as the light drops to green, or as far out as 60'

Conv/jump joints are ok for the daily driver and light use p/u truck, but always always try and stay away from it in the performance world
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Old 08-16-2011, 08:11 PM   #7
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Default Re: 1310 pinion yoke limit?

Ok. I've been looking at my driveshaft for a while now. I was just gonna slide it back in before I started this thread. Now I'm scared shitless that its gonna grenade. What's the best deal on a 1350 12 bolt yoke? Also is my 3.5in 1330 shaft even up to the task?
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Old 08-16-2011, 09:43 PM   #8
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Default Re: 1310 pinion yoke limit?

There are many things that go into play, hp, tq, 1st gear, weight, length of the shaft, diameter, rpm of the shaft. . . Doesn't mean you have to scrap what you got, maybe just upgrade the joints.

1330 and 1310 of the spicer spl series are capable of what 1350 greaseable joints are, the 1350 spl joint are 30% stronger
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Old 08-20-2011, 02:26 PM   #9
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Default Re: 1310 pinion yoke limit?

Thanks for all the replies. I did some homework and found a stout solid conv joint for the rear of my shaft. I The plan was to put good juints in it, install a rear safety loop(there is a perfect spot on my car for it and probably would be good to have anyway) and run it while saving for new yokes and a new driveshaft. Well, I put the shaft in my vise to take the old joint out, and a light tap is all it took for the caps tomove. I pushed them out with my thumbs. I test fitted the new caps and could push them in by hand too. So, obviously the shaft is wiped. Man, I was really lookin to get this thing out, it has been a while because of a cross-country move.. Not a good time for this now as we just bought some new appliances. Supershafts, I wish I were in you neck of the woods so you could make on up for me. What would you recommend and how much would you charge? Thanks
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Old 08-20-2011, 04:02 PM   #10
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Default Re: 1310 pinion yoke limit?

Lmao, funny you say that, i wish i was in any neck of the woods then the hell im in right now.....

What joint did you find ?


Yeah the weld yoke is all used up, listen better you found it now than at the 660 mark, loose weld yokes can spit a joint out anywhere. . . .
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Old 08-20-2011, 10:58 PM   #11
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Default Re: 1310 pinion yoke limit?

I found a Neapco 01-0134BF solid brute force 1310-1330. Troubles on the Island? What can I expect to pay for a new weld yoke or a new shaft? Steel or Aluminum?
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Old 08-21-2011, 01:28 PM   #12
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Default Re: 1310 pinion yoke limit?

neapco is china now. . . . I would say you're probably looking to pay anywhere from 135 to 165 for a new weld yoke, spl joint and rebalanced at your local shop.
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Old 08-21-2011, 04:19 PM   #13
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Default Re: 1310 pinion yoke limit?

Anyone got a link to one of these spicer joints? 1310
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Old 08-21-2011, 11:30 PM   #14
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Default Re: 1310 pinion yoke limit?

part # 5-785 or the greasable SPL version are spl22-7x which are stronger than the hot forged 5-153 by probably 20%
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Old 08-22-2011, 10:45 AM   #15
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Default Re: 1310 pinion yoke limit?

Thanks for the replies. I took the shaft down to a local guy and he's gonna put a new weld yoke on. I told him to put a 1350 on and I will change the pinon yoke too. I got home and started ebaying for a new one when I ran into a 1330 in really good condition for cheap! Would a 1330 squared solid setup work? I'm just looking to save some hard earned dough if I can. I'm currently taking the old one off the car and will call him with the measurements and spline count to see if he has a 1350 and what he'd charge.
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