Landracing Forum

Fundraising, For sale, and Wanted => Items Wanted => Topic started by: brauer716 on February 14, 2011, 10:56:51 PM

Title: rearend gears
Post by: brauer716 on February 14, 2011, 10:56:51 PM
Looking for 250 ring and pinion for 9" Ford  .
Title: Re: rearend gears
Post by: maguromic on February 14, 2011, 11:05:53 PM
The 2.47 gears are easier to find, especially if you need spares. Here is a set on that auction site, the seller also claims to have 2.50 gears as well.  Tony

http://cgi.ebay.com/ebaymotors/FORD-STOCK-9-INCH-GEAR-2-47-GEAR-SET-NINE-INCH-2-47-/180614347634
Title: Re: rearend gears
Post by: akk on February 15, 2011, 08:36:01 AM
We are looking for 2.25+- ford nine inch...anybody have a source?

Akk
Title: Re: rearend gears
Post by: fastman614 on February 15, 2011, 09:29:37 PM
We are looking for 2.25+- ford nine inch...anybody have a source?

Akk

2.25+/- for a Ford 9"?..... I don't know of this gear ratio...... although I am old enough to know that I don't know everything.

I was looking at using a 2.41 GM axle out of a late 70s Firebird or a 2.29 GM axle out of a very late 70s Cadillac (both are 8.5" ten bolts)..... And then I was told that Strange Engineering makes a 3rd member for a Ford 9" housing that will accept GM 12 bolt gears....in the same conversation, I was also told that GM 8.5" ten bolt gears can easily be made to fit in place of Chevy 12 bolt gears (and vice versa)..... again, I do not know this to be fact but it may be something to look into. The pinion offsets on the custom Strange 3rd member are equivalent to Chevy though.... so if you did not have a driveshaft of some length, a housing with the right pinion side to side spacing would need to be made and (as in the case of our lakester) the pinion height to axle center line would raise the car up some.....
Title: Re: rearend gears
Post by: ATS, Inc on February 16, 2011, 12:13:03 AM
When I was looking for 2.50:1 gears for my 9" I gave Curries Rearends a call. They asked me how many sets I wanted! I had a set in a couple days. Seems they saved all the factory Ford take-outs. Good, used, and CHEAP! Hope this helps.
Sterling
Title: Re: rearend gears
Post by: akk on February 16, 2011, 08:55:00 AM
At speed week last summer while in the heat of debate over gear ratios...someone handed me a cell phone with some guy claiming he had several 2.25 ford nine inche gear sets on the shelf???!!!!???

I handed the phone to one of the crew to get the particulars...I got involved in something else....anyhow I can't find the particulars and even more embarrassing I can't remember who handed me the phone or who I handed it off to....

Akk
Title: Re: rearend gears
Post by: Ron Gibson on February 16, 2011, 02:39:55 PM
I thought I had located a set of 2.33s on a web site a while back. After numerous calls to the site owner and anyone else he could recommend, to no avail I gave up.
I think it was G Force that told me Ford listed them in their older Motorsport parts book but he had never seen a set. No one could give me any info on where to look next.

Ron
Title: Re: rearend gears
Post by: maguromic on February 16, 2011, 05:08:58 PM
Ford did offer the 2.33 gears in a 13/35-tooth count and they came in big Lincoln’s of the 70's and not a 100% sure but I always thought they were 9 3/8” rear ends.  Tony
Title: Re: rearend gears
Post by: Ron Gibson on February 16, 2011, 06:03:41 PM
The 9 3/8" Lincoln carrier will fit the 9" housing. Bolt pattern is the same but you might have to grind clearance for the bigger gear to fit through the opening into the housing. The gaskets are notched and will tell where to grind if necessary.

Ron
Title: Re: rearend gears
Post by: akk on February 16, 2011, 09:20:57 PM
outstanding!!!!!!!!!!!!!!!!

Thanks

Akk
Title: Re: rearend gears
Post by: fastman614 on February 17, 2011, 07:25:36 PM
Ford did offer the 2.33 gears in a 13/35-tooth count and they came in big Lincoln’s of the 70's and not a 100% sure but I always thought they were 9 3/8” rear ends.  Tony

13/35 tooth count? equals 2.33 ratio?.....a quick calculation says that would be about 2.69 to 1.... which, if that exists..... I would like a set

 are you sure it isn't 15 to 35 ?....which does equal 2.33 to 1.... and i will take a set of these as well.

Speaking of this though.... does anyone know if there are any 9" Ford gear ratios somewhere in between 2.75 to 1 and 2.50/2.47 to 1.... like a 2.62 or 2.64 or something?
Title: Re: rearend gears
Post by: SaltRat on February 17, 2011, 09:55:30 PM
from old man engineering dot com

table lost format, sorry
9" Ford Ratios & Tooth Count Available by Manufacturer- Updated- 6/24/04
Ratios Motive Motive AX Ford Richmond Richmond 9310 Precision US Gear
2.33     Yes- 13/35         
2.47 Discontinued 19/47
2.50 Discontinued 18/45
2.75 Discontinued 16/44
2.80       Yes- 15/42       
2.84     Yes- 13/37         
2.86       Yes- 14/40       
2.91     Yes- 11/32 Yes- 11/32   Yes- 11/32 Yes- 11/32
2.92 Discontinued 13/38
2.93 Discontinued 14/41
2.94       Yes- 16/47       
2.95 Discontinued 19/56
 
35/13=2.69 according to  calulator
Title: Re: rearend gears
Post by: SPARKY on February 17, 2011, 11:01:15 PM
2.33 :-o I know where a bunch of Lincolns are  any codes---how would one know what to look for? :?
Title: Re: rearend gears
Post by: desotoman on February 17, 2011, 11:34:02 PM
2.33 :-o I know where a bunch of Lincolns are  any codes---how would one know what to look for? :?

Sparky,

Since this was posted I have spent about 2 hours using Search engines to find out about these gears. I cannot find any information on them. Also the ring gear to pinion ratio on the chart is wrong for the 2.33 as it comes out to 2.69.

Has anyone ever physically seen these gears?

Tom G.

Title: Re: rearend gears
Post by: SaltRat on February 18, 2011, 12:11:40 AM
Here is a link to some codes, but believe these to NOT be Lincoln:
http://www.woodyg.com/fairlane/finfo/fordrears.html

Here is another list of ford codes, but no 2.33
http://home.comcast.net/~petebre/maverick/FoMoCo_rear_ends.html

I've searched for this "mythical" long ratio sproradically for years and never found a tag code. ???

That is all.
Title: Re: rearend gears
Post by: maguromic on February 18, 2011, 12:38:59 AM
I have a 1970 Ford manual that has the axle code for 2.33 on the door tag for 1970 models including Mustangs as being X.  Tony
Title: Re: rearend gears
Post by: maguromic on February 18, 2011, 12:42:57 AM
Just noticed on one of SaltRat's links it lists the same code for the 2.33.  I would guess these gears are more common in Texas or in the mid-west where the roads are endless.  Tony
Title: Re: rearend gears
Post by: SPARKY on February 18, 2011, 07:29:28 AM
the elusive 2.29 12 bolt gm only came in a 396 2 barrel car in an Impala or some none such---I gave up and settled on GM 10-12 2.28 Caddys

Just recently saw some 2.27 8.5 GM gears listed on EBAY---I have never seen any reffrence to them in any GM or Hollander  my curiousity was NOT up to the 150.00 purchase and freight.
Title: Re: rearend gears
Post by: Ron Gibson on February 18, 2011, 10:04:06 AM
When they say "X" code, they are talking about the "axle" code on the door tag or sticker. If the rear end hasn't been changed, the door sticker will tell you what's in the rear without having to crawl under. It will also tell you if it's posi or not. A lot of 77-78 Thunderbirds and Cougars had 2.47s in them.

Ron
Title: Re: rearend gears
Post by: Ron Gibson on February 18, 2011, 10:17:32 AM
After I looked at the second link Saltrat posted, down at the very bottom of the page is a chart showing door tag codes. It shows a 2.33 for "F" code open and "X" code for locker.

Ron
Title: Re: rearend gears
Post by: SPARKY on February 18, 2011, 07:20:51 PM
77-78 was when Caddy had the 2.28 gears
Title: Re: rearend gears
Post by: fastman614 on February 18, 2011, 11:06:46 PM
from what I can glean, the 2.33 was in fact avaible in Lincolns.... it was a 9 3/8" ring gear.... the carrier etc does fit a 9" housing (and vice versa) but reliefs have to be ground into a 9" housing in order for the 9 3/8 gear to pass through.... The  carrier and most of the parts for a 9 3/8" center section are NOT interchangeable with a 9" center section..... and th 9 3/8" differential USED ONLY 31 SPLINE AXLES. 

This ratio was supposedly also available in some golf carts and/or other lawn type equipment that used Ford 9" rear axles .....

Now, apparently, there was also a 2.33 to 1 gear ratio available in the small (7.5 inch) Ford integral rear axle as well.... do not confuse the two....

Sparky.... if you find some diffs..... I want one...
Title: Re: rearend gears
Post by: SPARKY on February 18, 2011, 11:25:41 PM
The easiest big ring gear is the 8 7/8  Caddy with the 2.28 has 28 splines  Had one in my Lakester that is now the rear axle for the truck a converted another center section to a frt axel for our 4x4 truck by changing the tubes out.
Title: Re: rearend gears
Post by: fastman614 on February 21, 2011, 10:06:07 PM
Ford did offer the 2.33 gears in a 13/35-tooth count and they came in big Lincoln’s of the 70's and not a 100% sure but I always thought they were 9 3/8” rear ends.  Tony

The information I was able to find was that the tooth count was 15 to 35..... and they were/are 9 3/8 ring gears.... happy hunting
Title: Re: rearend gears
Post by: fastman614 on March 07, 2011, 01:27:29 PM
This link has immediate access to about 10 or more pages of Ford axle codes.... It states the gear ratios, whether it was posi or not, ring gear diameter and generally states whether it was an integral rear axle or not...... however, alas, NO reference to the elusive 2.33 to 1 ratio..... except in a 7 3/4" diff.... nor does it have part numbers or part number suffixes

http://www.fordification.com/tech/rearends_ford01.htm
Title: Re: rearend gears
Post by: fastman614 on April 03, 2011, 11:05:21 PM
Okay.....So.....NOW..... I have decided that I want a 2.50 Ford 9" 3rd member complete and in usable condition without a rebuild..... NON posi with 28 spline gears... delivered to Bonneville Speedweek would be fine........ BTW..... I already own 2.47s and every other Ford and Richmond Gear ratio up to 3.00, so please do not offer me any.
 
What have you got and how much money?..... and I do have stuff to trade ...