F-41 vs standard steering box

[Bonnewagon]

This is driving me crazy. Are the F-41 steering box and the standard steering box totally interchangeable or not? RockAuto's CARDONE rebuilt specs show two different spline counts on the input shafts. I have never seen this or even heard about it. Are they the same- or what? It would not be the first time RA screwed up specs but this has me chasing my tail. Here is the F-41 page: https://www.rockauto.com/en/moreinfo.php?pk=31245&cc=1246924&jsn=413 and here is the non-F-41 page: https://www.rockauto.com/en/moreinfo.php?pk=31205&cc=1246924&jsn=411&jsn=411 See the spline counts? And worse, Jeep lists the F-41 35 spline box as used on the Cherokee. So using the popular Jeep steering shaft would require you to change to an F-41 box if you had the standard box. IF the splines were different. So what gives?

 

[08Malibu]

I swapped an f41 box into my car with no changes.

 

[Ribbedroof]

I swapped an f41 box into my car with no changes.

Ditto. Replaced a 605 box with a MCSS box and pitman, used original-to-the-car intermediate shaft

 

[DRIVEN]

Same here. IIRC the Pitman arm is box specific though.

 

[Bonnewagon]

OK so the input shaft is the same. GREAT! I know about the Pitman arm, not a problem. I guess CARDONE got it wrong. Awesome, guys, thanks!!!

 

[pagrunt]

OK so the input shaft is the same. GREAT! I know about the Pitman arm, not a problem. I guess CARDONE got it wrong. Awesome, guys, thanks!!!

Sure you're not looking it up as a Cutlass Supreme cause as we know nothing fits a Cutlass Supreme.