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Went thru some old parts cars here and tried a red 26 tooth.. Closer..... Ended up buying a 27 tooth and its dead on. 25 tooth and lower do take a different adapter. 26 and up takes its own breed.. Believe this support pinions up into the 38's or 40's

To hard to remember what offset the meter needs to be to keep up with interstate traffic

Thanks Alan. I'll have to check . I seen the other indentations to clock it but no other markings . I think my service manual explains which ones to use for which gear

Completely agree. I even opted for a $40 TCI pan with drain plug

Oops forgot . The car is a 1974 imperial ... 440 with a 727 torque flight .

Thanks you for the help. Yes your correct . I need "slow the speedometer down " to my actual speed. I used a handheld gps to calculate how far off it was. Tom Tom and a garmin gps both read the same. I guess I was looking at this problem backwards . I need to slow the speedometer not speed the...

My speedometer is off and has been reading low since I've owned it... It has the factory 2:76 rear ratio... it reads about 5 mph off between 35-55 mph. Then once your traveling 60-80 mph its starts to vary around 7-8 mph off. Example : When the speedo says 60 your only traveling about 54-55...

I just did the 518 gasket also this weekend. Bone Dry !

If I remember correctly it was .030" or .035" straight from the book. .045" is pretty wide. Something only used on like an msd box

Sounds good. Is the taper the same on the bottom? PS.... Love your black imperials

What is everyone running in their 440's instead of the j11y champions that are obsolete ? J12YC ? Looking for the same heat range or one step hotter . I tried auto lites but their too cold of a plug for initial start up

how common is the 3;23 ratio in our c body drivers? imperial or new yorker.... I have the 2:73's (or 2:71's as some sites call it ) ... Have a couple of these 3:23 rears on the shelf and debated swapping ring and pinions but i don't want it to scream driving 75 mph on the highway.

if going with a tru trac and using the same ring and pinion : before disassembling anything .... Check your gear tooth pattern and back lash. Check the back lash in 4 spots. This is where I see a lot of people make a mistake because they only check 1 spot then complain of gear howl under de...

I haven't seen the china made repop's lol... I would def stay away from them. Everything made in china is junk and wears out. Stick with high quality aftermarket rear end parts or OEM. I'm not even sure off the top of my head if auburn makes a 9.25 unit or a 8.75

Those thunder avs carbs are nice but its hard to beat a holley. So easy to change jets and tune on

I don't hear any noise out of my tru tracs unless I am towing a heavy load going up my steep concrete driveway.... steep as in its a 3:1 slope . It doesn't like it to much kinda bangs a bit but was deemed normal by eaton. I have heard other drag racers comment on the same noise under harsh...

Thanks. Just trying to help a guy out so they didn't make the same mistakes I did over the years when I didn't know or understand the differences

Here's one thing to consider when your going to install a cone, clutch, or gear type limited slip/posi. Some are going to have "drive shaft wind up" and others won't. Example: With both rear tires on the ground, trans in neutral, wheels blocked, and parking break set if you were to grab the...

Summit racing has came a long way on their rebuilt carbs now. I took my thermoquad to two different shops to get a dead spot out of it, and keep the seats from leaking. It ran night and day better, but never like new. I ended up spending the $$$ on a new one from summit racing and wow. Its...

Ya I know what your referring to on the washers that pinch the inner race only ... I have one on each side . See the original bearing is an odd size with an extra thick inner sleeve no longer manufactured that way