Mopar 8 3/4 VS 8 1/4 - Page 3

Scatpacktom · 10-07-2009, 11:53 AM

What is the "Bailey treatment"?

Michael Beard · 10-07-2009, 11:59 AM

Quote:

Originally Posted by Bob Pagano

If your not convinced start out with a 741 case and try Jim Bailey at Finished 330 858 1842 his treatment of rear part is the best bar none.

What Bob said.

Having your ring & pinion "FINISHED" will not only make it live longer, but I've found that it's worth a couple hundredths, too!

Quote:

What is the "Bailey treatment"?

REM Isotropic Superfinishing plus Cryogenic treatment. There's some info on his site, finishedracing.com

Chris "drooze" Wertman · 10-07-2009, 12:28 PM

Quote:

Originally Posted by bsa633

I know some that made a spool themselves back in the days and got it to last a long time in a 360 duster stocker...but it finally gave in and had to leave room for a 8.75..the gear selection isn't very good...a 4.56 looks like "top of the line"!

Richmond is making a 4.86 in a Pro Gear for the 8 3/4 , or were you talking about the 8 1/4 ? Part numbrt 79-0133-L

Cheers

Chris

Dusty Lowell · 10-07-2009, 01:04 PM

yea Richmond has a part number but they stopped making them, told us we need an order of $10k to get a set, oh well Jim Baileys stuff has held up better then anything i have ever bought from Richmond. Also the 8.75 rear is great if its set up correctly i've been 10.7's @ 3200+ lbs and no prob with the rear just the richmond street gears.

Phillip marvetz · 10-08-2009, 12:27 AM

Bob, No I am not going to use the 8 1/4 behind the hemi. This question is for the slant six wagon. I have a garage full of spare parts for any rear axle I use I'm just wondering if I will gain any ET by putting a 8 3/4 under the wagon, The strengh is not in question.

So is a 8 3/4 faster than a 8 1/4? anybody have a real answer?

magnumv8 · 10-08-2009, 03:38 PM

With the limited choices of ratios for the 8.25 if the optimum gearing for your combo turns out to be between those ratios and it is available for the 8 3/4 then the latter would be the rear assembly to use....I think that any small benefit (if there is one) in performance with the same ratios in each would be overcome by the flexibilty of the 8 3/4.....

D L Rambo

10-07-2009, 11:53 AM	#21
Scatpacktom Junior Member Join Date: Jul 2005 Location: Phila, PA Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: Mopar 8 3/4 VS 8 1/4 What is the "Bailey treatment"?

10-07-2009, 01:04 PM	#24
Dusty Lowell Member Join Date: Sep 2004 Location: Kensington, NH Posts: 103 Likes: 0 Liked 0 Times in 0 Posts	Re: Mopar 8 3/4 VS 8 1/4 yea Richmond has a part number but they stopped making them, told us we need an order of $10k to get a set, oh well Jim Baileys stuff has held up better then anything i have ever bought from Richmond. Also the 8.75 rear is great if its set up correctly i've been 10.7's @ 3200+ lbs and no prob with the rear just the richmond street gears. __________________ Dusty Lowell #1773 STK F/SA

10-08-2009, 12:27 AM	#25
Phillip marvetz Senior Member Join Date: Oct 2008 Location: Lynden ,WA Posts: 820 Likes: 0 Liked 3 Times in 3 Posts	Re: Mopar 8 3/4 VS 8 1/4 Bob, No I am not going to use the 8 1/4 behind the hemi. This question is for the slant six wagon. I have a garage full of spare parts for any rear axle I use I'm just wondering if I will gain any ET by putting a 8 3/4 under the wagon, The strengh is not in question. So is a 8 3/4 faster than a 8 1/4? anybody have a real answer?

10-08-2009, 03:38 PM	#26
magnumv8 Member Join Date: Feb 2009 Location: Coraopolis, Pa. Posts: 172 Likes: 0 Liked 0 Times in 0 Posts	Re: Mopar 8 3/4 VS 8 1/4 With the limited choices of ratios for the 8.25 if the optimum gearing for your combo turns out to be between those ratios and it is available for the 8 3/4 then the latter would be the rear assembly to use....I think that any small benefit (if there is one) in performance with the same ratios in each would be overcome by the flexibilty of the 8 3/4..... D L Rambo