HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock Tech
Register Photo Gallery FAQ Community Calendar

Reply
 
Thread Tools Display Modes
Old 02-12-2013, 10:51 PM   #1
jmantle
Member
 
Join Date: Feb 2008
Location: Black Creek, BC Canada
Posts: 331
Likes: 80
Liked 172 Times in 81 Posts
Default Re: Ford C4 2.75 low gear?

Quote:
Originally Posted by fordteacherguy View Post
My Broader Performance C-4 2.92 low uses a GM 125C for the C-4 front planetary. Looks like the same GM planetary on my ATI 2.92 as well.
Brian, did you ever try the car with the stock front planetary to see how much difference the low gear set made?

Jim Mantle 6632 V/SA
jmantle is offline   Reply With Quote
Old 02-12-2013, 11:07 PM   #2
fordteacherguy
Member
 
Join Date: Jun 2007
Location: Federal Way, WA
Posts: 238
Likes: 38
Liked 160 Times in 51 Posts
Default Re: Ford C4 2.75 low gear?

Hey Jim,

I did compare std/low ratios some time ago, and my heavy beast of a stocker (#3610 min weight) did appreciate the lower gear set. Now my slightly lighter Super Stocker........well, stay tuned. We'll see this year what that one likes.

I remember our conversation on the subject. Say hi to Debbie! Getting both cars ready!
fordteacherguy is offline   Reply With Quote
Old 02-16-2013, 12:50 PM   #3
1347
Senior Member
 
1347's Avatar
 
Join Date: Aug 2007
Location: Monroe Twp NJ
Posts: 509
Likes: 1,045
Liked 1,015 Times in 278 Posts
Default Re: Ford C4 2.75 low gear?

when I called TCI, they told me they only sell the low drag 2.46, the low gear set anymore, ATI has been out of stock for 6 mos now and doesnt now when they will have them, ACT said he builds them in house and needs a week or so, didnt call broader performance, so i dont know what there story is, Ed Horensky said once TCI started cryo treating the gears, they stopped breaking, dont know if everyone else is doing the same

Duane Hoven
1347 is offline   Reply With Quote
Old 02-17-2013, 09:56 PM   #4
fordteacherguy
Member
 
Join Date: Jun 2007
Location: Federal Way, WA
Posts: 238
Likes: 38
Liked 160 Times in 51 Posts
Default Re: Ford C4 2.75 low gear?

Here are some pics of my ATI C-4 2.92 planetary kit. Bought through Jegs w/NHRA discount. Looks like ATI press a spline adapter in the carrier adapting the GM internal spline to a C-4 output spline then welding the adapter in place. Not crazy about the weld being right in the middle of the support bushing. Will probably fix that before install. The sun gear is hard to see what they did. You would have to weld or spline the C-4 sun gear to the larger front planetary sun gear. As for the front ring gear assy, it looks likes maybe they counterbored the ring gear assy for the torrington and added a bushing? The assembly came with GM frictions to make it compatible with my forward clutch.

A very differnent approach than my broader stuff. He stayed mainly with Ford C-4 components and mated them to the GM planetary and ring gear. The ATI stuff looked a little less "robust" than my Broader so I am sticking that stuff in my stocker and my Broader stuff in my SS.
Attached Thumbnails
Click image for larger version

Name:	Feb Belfair 006.jpg
Views:	446
Size:	78.0 KB
ID:	15960   Click image for larger version

Name:	Feb Belfair 014.jpg
Views:	517
Size:	121.4 KB
ID:	15961   Click image for larger version

Name:	Feb Belfair 016.jpg
Views:	422
Size:	115.0 KB
ID:	15962  

Click image for larger version

Name:	Feb Belfair 019.jpg
Views:	417
Size:	112.8 KB
ID:	15963   Click image for larger version

Name:	Feb Belfair 021.jpg
Views:	439
Size:	74.4 KB
ID:	15964   Click image for larger version

Name:	Feb Belfair 027.jpg
Views:	407
Size:	77.2 KB
ID:	15965  

Click image for larger version

Name:	Feb Belfair 029.jpg
Views:	448
Size:	77.4 KB
ID:	15966  
fordteacherguy is offline   Reply With Quote
Old 02-18-2013, 02:20 PM   #5
428tom
Junior Member
 
Join Date: Aug 2010
Posts: 54
Likes: 0
Liked 3 Times in 3 Posts
Default Re: Ford C4 2.75 low gear?

Are you talking about Broader Performance in Texas ?
428tom is offline   Reply With Quote
Old 02-18-2013, 08:01 PM   #6
fordteacherguy
Member
 
Join Date: Jun 2007
Location: Federal Way, WA
Posts: 238
Likes: 38
Liked 160 Times in 51 Posts
Default Re: Ford C4 2.75 low gear?

Tom,

Yep, Broader Performance Weatherford TX is where I got my first 2.92 set up.
Thought it was done well. Held up in my stocker but the forward planetary showed some wear after 4 long years of running with my #3640 stocker. Go figure!

I looked for a 2.75 but didn't find any. Now that I know Virginia Speed makes one and Pro Trans, I might give either one of them a call if I go in that direction.

Great to get fresh info through this forum. Thanks guys!
fordteacherguy is offline   Reply With Quote
Old 02-27-2013, 09:22 AM   #7
fordteacherguy
Member
 
Join Date: Jun 2007
Location: Federal Way, WA
Posts: 238
Likes: 38
Liked 160 Times in 51 Posts
Default Re: Ford C4 2.75 low gear?

Tom,

You have a PM.

Brian
fordteacherguy is offline   Reply With Quote
Old 02-27-2013, 09:51 AM   #8
TOP GUN
Member
 
Join Date: Dec 2004
Location: wake forest , n.c.
Posts: 162
Likes: 2
Liked 0 Times in 0 Posts
Default Re: Ford C4 2.75 low gear?

i went faster with the 2.92 gearset with my smaller motor but had to weld the adaper spline on both ends (TRICKY but VSRC can do it) didnt break it any more . the littlle gears should be checked yearly. those gear axels got welded to. his 2.75 part will last longer.. check out VSRC web site
__________________
nitro joes TOP GUN 3 years straight
mark young
TOP GUN is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:14 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.