20-145 yoke

Action Machine in South Bend, IN has always treated us well for anything driveline related.
 
After haisleys sent me one for a sqhd called back and they don't have one for a 20-145. Called performance pros and they claim nobody has yet made one for a 20-145
 
Here is the spicer number for the cast one if u need it. Spicer#4-4-7571-1X

Have y'all been breaking the cast 1550 yokes?
 
I called Mark Petros at Greensburg Machine and Drivelkne to order my 1550 yoke for mine, he advised me not to run a 1550 on mine and to jump up to a 1610 joint because the 1550 has a smaller diameter spline on the telescoping portion of the shaft and apparently that becomes the weak link on higher horsepower trucks on decent tracks. I would have bet that 1550 would be plenty enough for my 3.0 SB setup and the ****ty tracks we have in NE but Mark highly encouraged me to go with the bigger joints once and be done with it so I’ll trust his opinion. Just thought I’d pass along the info I was given...
 
That was my thought as well, I bought my profab box used off of a 3.6 truck and it already had the 1550 yoke on it. Mark brought up an interesting point that about the splined portion of the shaft but I just can’t see myself breaking one....
 
Shenian508 said:
I called Mark Petros at Greensburg Machine and Drivelkne to order my 1550 yoke for mine, he advised me not to run a 1550 on mine and to jump up to a 1610 joint because the 1550 has a smaller diameter spline on the telescoping portion of the shaft and apparently that becomes the weak link on higher horsepower trucks on decent tracks. I would have bet that 1550 would be plenty enough for my 3.0 SB setup and the ****ty tracks we have in NE but Mark highly encouraged me to go with the bigger joints once and be done with it so I’ll trust his opinion. Just thought I’d pass along the info I was given...
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We are running the 1610 from Mark for what it’s worth
 
Shenian508 said:
That was my thought as well, I bought my profab box used off of a 3.6 truck and it already had the 1550 yoke on it. Mark brought up an interesting point that about the splined portion of the shaft but I just can’t see myself breaking one....
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Ryan, aka stackman has had 2 different 3.6 trucks, his new one is pretty stout, he won Freeport the second day this season. If anyone is familiar with that hook,they know it's always scetchy n most trucks have the back tires off the ground a handful of times that weekend. 1550s held up for most of those guys.
 
bigstacks95 said:
1480's all around here
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Rawdog said if I didn't come on here and post immediatly about how I destroyed a 1480 driveshaft and split a yoke last night he'd do it for me. So there you go, apparently when you get on a real bad a$$ track 1480s are not good enough LOL
 
I went 1610 rear and 1480 front. It doesn't cost much more money at all to upgrade when building new shafts. I sourced all my own Spicer parts and took them to a local Napa to have the tubes welded to the yokes. Have about $1200 in both shafts. Rear tube is .134, front is .095. I don't want anymore driveline failures, that's the whole reason to go to ODL.
 
I switched to 1610 on the rear shaft at the axle after a failure of the 1550 yoke. 1610 Yoke,strap Kit, U-joint and weld in yoke was right at $300 from Greensburg Machine In Pa.
1610 stuff is truly 1 and done and Mark Petros has everything in stock.
 

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