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  1. AR67GTX

    Self-aligning throw out bearings? (Not hydraulic)

    This came up on another forum. I’ve known about self aligning TO bearings for some time and my impression was that most of the higher quality TOBs today are self-aligning. My impression was they had become wide spread was to cope with diapraghm clutches and irregular finger alignment. However...
  2. AR67GTX

    Correct PS mount for 67 GTX with AC and TRW pump.

    I’ve realized after 20 years of ownership that I’m lacking the back-side bracket on my PS pump. It’s mounted with just the front bracket piece. It has a TRW pump. I’ve found several 66-69 bracket sets for the 440 with TRW pump like the one below from Classic. Mega Parts seems to sell the...
  3. AR67GTX

    Hemi guys - question on spark plug tube seat in head

    Pulled my left valve cover again today to try to seal up the gasket again and for the first time happened to notice one of my tube seats in the head looked like it was missing an o-ring or seal at the top - compared to the other ones. After taking a picture and enlarging it I now don’t think it...
  4. AR67GTX

    Hemi motor mount holes in block?

    Are some or all of the motor mount bolt holes in the side of the block drilled clear through? I keep finding a drip of oil hanging on the curved bottom of the right mount plate and I cant figure out where it’s coming from. I have dye in the oil and nothing is coming down from above - valve...
  5. AR67GTX

    Are A833 tailhousing bolt holes in main case drilled straight through or are they blind holes?

    My A833 is leaking some lube from somewhere around the gasket joint between the main case and tailhousing. I went through this with a Ford Toploader a few years ago and the problem was the bottom tail housing bolt hole was drilled straight through the case wall and wouldn’t seal up with just a...
  6. AR67GTX

    Hemi street intake gasket clearance on end wall?

    Anyone with a stock Hemi street intake ever measure their end wall gasket clearance when changing gaskets or cams? Sitting loose on .062” side gaskets, my front is measuring .130” to .0135” range. Hard to measure the back but seems pretty similar. From the positioning of the gaskets on the...
  7. AR67GTX

    Seal intake bolts on Hemi intake?

    Replacing the intake on my 66 Hemi I noticed at least some of the bolt holes are through-drilled into the engine valley. None of mine seemed to be wicking oil up to the top of the manifold but it got me to wondering if some non-hardening Permatex thread sealer should normally be applied to the...
  8. AR67GTX

    Need ideas to remove stuck tight Hemi intake

    Once I had the top of the engine stripped I thought I was home free but the previous owner must have RTV’d the heck out of this intake and I haven’t been able to budge it. The gasket at the front China wall was easy to separate but the side gaskets are like a rock. A sharpened putty knife and...
  9. AR67GTX

    Recommendations for Hemi intake gaskets and intake stud kit

    In another thread I’ve narrowed my largest oil leak down (I think) to the rear china wall gasket pushing and bulging out from under the manifold. It will be interesting to get it off and find out how this happened as there are 3 dowels across the area that should pin the gasket in place. I’m...
  10. AR67GTX

    Persistent oil leak from somewhere?

    OK - This is not a major issue as in my motor is knocking, or blowing smoke, or won’t start but it is starting to irritate me. Last spring I replaced the rear seal, the oil pan and gaskets and the valve cover gaskets on my Hemi. I think it had a side seal leak on the rear seal retainer but also...
  11. AR67GTX

    489 gear pattern setup results - #2 Final Round ( I hope)

    489 with pinion spacer. After many trial setups I installed the new pinion bearing cones and races, adjusted the shim thickness for differences in bearing height from set up bearings and new bearings and put it together in semi final form. I had to make a lot more downward adjustment in pinion...
  12. AR67GTX

    489 gear pattern setup results

    I’ve posted a couple other threads leading up to this. Been through a couple sets of noisy Richmond gears by one shop and then bought a set of US Gear - gears (made in US instead of India) and had another shop set them up. Drove a very few miles, just enough to determine they howled on steady...
  13. AR67GTX

    Instructions for crush sleeve elimination kit

    I purchased a solid Spacer kit from Dr Diff for my 489 diff and it didn’t come with any instructions so I’m not sure how the shop who put it together set it up. It had a preload of 12 in-lbs with a new rear pinion bearing and used outer bearing and I would say the pinion nut was on at a pretty...
  14. AR67GTX

    Timken or SKF 489 rear pinion bearing part number?

    Can’t find anything on these damn on line catalogs and web site for a 50+ year old car. Anyone have the part number for the rear pinion bearing for a 489, 8-3/4 differential? Thanks
  15. AR67GTX

    Remove &89 rear pinion bearing?

    Using a split bearing remover/puller, is it a foregone conclusion it will destroy a 489 rear pinion bearing, requiring a replacement or is there a way to get under the center race without damage to it? Is a 3” puller a proper size to use? Or is a 4-1/2” better? thanks
  16. AR67GTX

    Pulled differential again photos of gear tooth pattern so far

    Only about 15 miles on this so nobody may be able to tell much. Kicking myself for not picking up some yellow gear paste. I had some heavy transmission assembly grease so tried applying it on a couple of teeth and wheeling it through the pinion with pressure on the ring gear. It didn’t work...
  17. AR67GTX

    Three new differential gear sets, two mechanics shops, 5 set ups and I still have noise.

    I hoped that dumping the Richmonds, getting a set of US Gears - gears, and using a regular drive line shop would finally be the end of my differential noise but it hasn't happened. The noise is different every time a set of gears is changed or the pattern is adjusted, but it still howls. With...
  18. AR67GTX

    Setting up 489 ring and pinion - how to

    Some may remember my earlier post on how much I hate Richmond gears. Ordered a new set of USGear R&P. I’m thinking I can’t do any worse than the previous mechanic on set up - bless his little heart. Main objective is to get a quiet set up. The rear was rebuilt a few years ago with all new...
  19. AR67GTX

    Had it with Richmond gears in my 67

    I’ve been through 2 sets of new Richmond Gears and 4 setups in my 67 - which I also checked pattern and backlash on myself too before putting the chunk back in the car - and I can’t take the howling much longer. Who makes a quiet (high quality) 8-3/4” gear set For a 489. I’m going to go to...
  20. AR67GTX

    How tight is it safe to lash street Hemi valves

    I can’t be quite 100% sure this has the original hemi street cam in it but I’m pretty confident it is. I ran the valves today and the intakes were lashed .019” to.025”, most around .022/.023. Exhaust were from .023“ to .026”, most around .027”. I set them marginally tighter than the FSM at...
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