why are there 2 pilot bushings?
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
why are there 2 pilot bushings?
whats the deal with that?
is it "either/or"?
or "both"? http://store6.yimg.com/I/zipproducts_1727_28500787
is it "either/or"?
or "both"? http://store6.yimg.com/I/zipproducts_1727_28500787
Racer
Joined: Oct 2000
Posts: 329
Likes: 0
From: Ft Walton Bch FL
Re: why are there 2 pilot bushings? (SIGNGUY)
I think the larger diameter bushing is used when you have a deeper than stock bellhousing, such as would be used for triple or maybe some dual disc clutches. In that case, the input shaft would no longer reach the stock bushing. The back of the crank has a large bore and a small bore for either bushing. Our race car uses an 8 5/8ths bellhousing, so we use a large roller bearing in the outer hole.
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: why are there 2 pilot bushings? (dually4wd)
ok...well one problem we had with mine is that the tip of the pilot shaft only goes into the small pilot bushing about half way...
does this mean that i should use the larger one?
but i think the shaft goes in too far to use the bigger one but im not sure...
does this mean that i should use the larger one?
but i think the shaft goes in too far to use the bigger one but im not sure...
Race Director
Joined: Apr 1999
Posts: 10,866
Likes: 717
From: Beverly Hills/Pine Ridge Florida
Re: why are there 2 pilot bushings? (SIGNGUY)
I can't directly answer your question, Signguy, but let me tell you a story. Several years ago, I was helping a friend re-do his 64. Original rebuilt motor, bellhousing, and original Muncie trans. We were putting it together on the "floor", planning to install it as a unit. Couldn't get the trans to "pull up". Finally disassembled the clutch/bellhousing and found that the pilot bushing that the machine shop had installed was too small (diameter wise) for the pilot shaft of the Muncie to slide into. Had to cut the pilot bushing out and go buy another with the proper ID for the Muncie. PIA. Luckily, we were not doing this under the car. SO....I don't know why there are different ones, but the pilot shaft of the trans should slide all the way in. Chuck
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: why are there 2 pilot bushings? (Chuck Gongloff)
thanx man...we used the small one before and it appeared that the shaft didnt slide all the way home...
ie...only about half of the end of the shaft actually slid into the bushing...
however if i use the big one i dont think that the trany will be able to bolt up snug with the bell housing...
ie...only about half of the end of the shaft actually slid into the bushing...
however if i use the big one i dont think that the trany will be able to bolt up snug with the bell housing...
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