will a 69 b body k frame bolt up to a 71 b body ?

'66 to '72 B-Body V8 and '70 to '74 E-Body K-Members should be interchangeable. Check this link:

http://www.engine-swaps.com/Pages/ProductsType/K-Frames.html

Physically they will fit, but they have different types of sway bar mounting.
No sway bar? No big deal.

Thanks guys

There was a discussion about this not long ago here on Moparts and seems like the E body steering box bracket mounts the box at a slightly different angle, but my memory on that has faded.

Something about the E-body box using shims in some cases, maybe later years?

I remember something about that too...

Word I got was when Borgeson mocked up their steering box, they used a 'B' body K member. This was given as the excuse why some with E Bodies(I was one) had severe alignment issues when installing this box. I got this from a reliable source. Corrective shimming of steering box finally removed my alignment issues. This is not proof positive that there may be a difference, but should cause one to do what you are doing,,,asking the question.

Yes I am aware of incorrect steering box bolts. My originals were buggered, so to get car together in a timely manner I picked these grade 8's at the local hardware store. Now have a set of correct bolts, just need to put them in,,,,kind of a pita so been putting it off. Expensive little buggers too

66-69B uses a different sway bar setup than 70-72B
62-70B has a different steering box angle than 71-2B, about 2-4*
70B is a one year one K-frame that has the 62-70 angle but the 70-72 sway bar setup.
71-2B is the same as 70-4E
69 K will fit in your 71 but would need the 66-69B lower control arms and sway bar if wanted. Also might have to shim the box a bit.

I have a 69 k frame that I welded heavy steel caster wheels onto that I used to move around a 69 dodge. before we remove the front suspension from a 71 road runner, I wanted to make sure it would bolt up so we can move the car while re-building the original front. that's the reason I asked, but thanks for all the info. it may come in handy later.

There is also a later 69 k-frame like the 70 style just not drilled for the newer sway bar setup.

There is more to it than just that

Was this RELIABLE source the same rocket scientist that told you that there are different size oil pan bolts ?

That is some bogus info, steering boxes interchange between the different body platforms ( except for certian C barges) so it wouldn't matter if Borgensen used a b body or E body Kframe, the misalignmnet between an E body and 70 down B body would be with the steering column and not any of the steering linkage ... and if it were a 71-72 B k frame that is the same as E body.

Ready! Fire! Aim! Father, forgive them; for they know not what they do.

This certainly cannot be the same self appointed Mopar expert who once so stridently claimed that big block oil pans were factory bolted on with all 20 bolts of the same length.

As it turns out, the bolts that affix the pan to the block as documented by both Motor's and by the Chrysler Parts Catalog were exactly 1/4th longer than those that affix the pan to the rear retainer.

One would have thought a normal person after having his head so throughly handed to him on this topic, cease stirring the pot with his continuous sniping and personal attacks which to date I have ignored. See my comment in the posting directly above this one.

Incidentally the reliable source rocket scientist who shared this information that a 'B' body was used to mock up the steering box for Mopar's was an employee of Borgeson. I made no assertion that this was the direct cause of the shimming requirement for this box when used on an E Body. The party at borgeson had suggested this could be the cause of the issues I experienced and as it turns out, others. There are multiple threads discussing this on the forum.

That was until it was shown in thread postings discussing this, that it came out that old Motor's Repair Manuals specifically warned that of the 20 attachment bolts that the 2 for the rear main retainer were shorter by 1/4 inch than the 18 for the block. This then suggested that if the longer bolts were utilized in the rear main retainer that a massive oil leak would occur because they would bottom out or worse yet crack the retainer before the oil pan was cinched tightly. If one were to purchase a Mr. Gasket oil pan bolt set, all 20 are the identical longer length.

Then this same expert attempted to divert his demonstrated ignorance of the topic by suggesting that anyone who trusted a rag such as he implied Motor's to be, was a fool.

But much to this man's chagrin and sorrow a posting by John Kunkel in this thread at entry number 1659842 dated 8-19-2014 gave this identical information by a reference copied verbatim from a Chrysler Corporation parts catalog, putting to bed his fiction to coverup his original incorrect assertions. Below is the thread to this URL. I recommend reading the entire thread, but if not just skip down to Kunkel's posting at 1659841 and commence reading from there on.

https://board.moparts.org/ubbthreads/ubbt...tml#Post1659850

Below is the URL on another thread started by me on this issue of leaking rear main seals and leaking pan gaskets on Mopars. Again this same expert in his misguided attempts to appear relevant(I've noted this phenomenon often by this expert since joining this forum) to many topics where his expertise has been a bit underwhelming.

https://board.moparts.org/ubbthreads/ubbthreads.php/ubb/showflat/Number/8088189/site_id/1#import

Some may question why I bring this forth now. Frankly I've tired of the bitter cheap shots taken by this gentlemen, not only at me but others who have been the target of his apparent unhappiness with his likely empty life and finds a perverse pleasure at belittling those who may have come to this forum, perhaps having limited experience with Mopar idiosyncrasies(but often a great deal with other marquees)and are hoping that the help they seek in resolving will the be willingly shared by those in the know,I can only assume that I became a target of his wrath because he was proven incorrect in this case. Ironically, it was not I, but other forum members who put forth evidence demonstrating this, both from Motor's and Chrysler.

E body, and 71/72 B body K frames are the same. The engine sits different in the K frame of a E body, 71/72 frame than it does in the earlier K frames.

OMG LOL