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Hi mike from nj building a 62 for my father, who had a street racer 61 in Brooklyn before he was drafted into Vietnam , the family sold the car before he got back. I have some questions on transmission and drive shaft lengths is this the right place to ask them? Thk
Ok it's a 63 327 with muncie m20. 4 speed, 1957 chevy bell housing,new spicer slip yoke, new drive shaft from zips, stock rear and stock springs, stock water pump engine mounts. From what I read the muncie and the t10 are the same length but yet the yoke is only in the tail by 1 inch, the body is off but I had 4 big buddy's stand on the frame it moved about a 1/4 inch that's it. I do have a buddy with a 62 I took measurements and everything is same but drive shaft appears to short why?
Note that there are rear axle limit straps that appear to be missing from your rolling assembly. These are to limit the total deflection (downward) of the rear axle, and prevent the front U-joint from going into a binding condition (too much angle) and prevent the driveshaft from contacting the rear edge of the "X" frame.
Addition of these straps would certainly help your issue, although there may also be something else going on here. Do you have the "long" front yoke that was called for?
In addition, the rear mount of the Muncie should be lowered (I spaced mine down about 3/4", while other forum members have gone 1") from the X frame (at the mount plate) using 4 longer bolts and spacers. This was done to correct the angle of the U-joints, and lower the rear of the engine, etc. On mine, when I purchased it, I noted that there was a rub mark on the inside of the hood (from the rear of the air cleaner lid), and U-joints would last 2K miles at best (after the 2nd set, I knew something was "wrong"....), plus having a "shifter" vibration. After I added the spacers to lower the rear of the trans (and verified that the 2 U-joint angles were counter matching), these issues were gone.
Plasticman
Last edited by Plasticman; 01-02-2015 at 01:43 PM.
Plastic man, I didn't buy the new axel limit straps yet, but question are they put in with tension on them like rear weight? And I did think about lowering the trans mount but in all the photos and cars I looked at they used the stock adapter plate, I will try that and see if I gain a bit more yoke. The spicer yoke measures the same as the stock t10 yoke.
Plastic man, I didn't buy the new axel limit straps yet, but question are they put in with tension on them like rear weight? And I did think about lowering the trans mount but in all the photos and cars I looked at they used the stock adapter plate, I will try that and see if I gain a bit more yoke. The spicer yoke measures the same as the stock t10 yoke.
Mike,
It's Rich from Toms River, we met at the Pumpkin Run last November. Give me a call so I can get your address.
2" of yoke outside of BW T10, from top of x plate to bottom of yoke shaft is 3 1/2".... I have the stock set up including the spacers between x frame and trans mount, 1/4" thick
Yes az the drive shaft is correct.....does any one have the angle of the trans that's dropped shimmed down? Right now my trans and rear are matching I was consirned that if I dropped it it would wear u joints because it would not match rear angle.
I think you may have the wrong front yoke - the Corvette used a unique part with a 4-1/2" long tubular section, and passenger cars used a shorter one about 3-1/4" long; Corvette needed the longer yoke due to the amount of excursion created by the extreme U-joint angles as the suspension moved up and down.
Photos below show a finished chassis similar to yours, and the (long) yoke is seated correctly in the tailhousing and output shaft.
Here's a few better pic I dropped the drive shaft and measured the slip yoke def shorter and the trans mount is bolted direct no shims. Is it looking like I have the wrong length slip yoke ?
Here's a few better pic I dropped the drive shaft and measured the slip yoke def shorter and the trans mount is bolted direct no shims. Is it looking like I have the wrong length slip yoke ?
Yup - that's a passenger car yoke - it can bind up on the output shaft and tear up the bushing and rear seal. You need the correct one.
Ok so I've heard a few say longer yoke.....it's a muncie trans what is the longer yoke 8" with about 6" of shaft? They measure from center of joint to end of shaft correct?
Ok so I've heard a few say longer yoke.....it's a muncie trans what is the longer yoke 8" with about 6" of shaft? They measure from center of joint to end of shaft correct?
See post #13 - that measurement (4-1/2") is just the tubular section; all of the usual Corvette vendors have them.
That 13 post is the stock t10 I'm running a muncie my yoke is longer now than that stock t10 yoke, I'll have to see what size s are available for muncie.
01-01-2015, 09:20 PM
Hi new guy here with questions
