4 cyl. s.a carrier v.s a ifs carrier.
#1
Registered User
Thread Starter
Join Date: Dec 2005
Location: Redding C.A.
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
4 cyl. s.a carrier v.s a ifs carrier.
wich is stronger in your opinin. ifs carrier or a 4 cyl third members carrier. im no doubt doing a sas in the next couple months and curious how strong the 4 cylinders carrier on my 85 runner donor axle is in comparison to my ifs carrier i have been wheelin for the past 4 years. would you swap out the 4 cyl third member for a v6 third member. Or am i just a little to paranioid.
#2
Registered User
Join Date: Sep 2006
Location: Oregon City, OR
Posts: 621
Likes: 0
Received 0 Likes
on
0 Posts
I am not exactly sure if the 7.5" IFS ring gear is weaker, but I would assume it is a little bit weaker compared to an 8" ring gear. The 6cyl third members have 4 ribs on each side for support as well as larger bearings and is a 4 pinion design. The 4cyl thirds only have 3 ribs on each side for support and is a 2 pinion design.
#4
Contributing Member
Join Date: Jan 2007
Location: SRQ, FL
Posts: 1,521
Likes: 0
Received 0 Likes
on
0 Posts
either way, the ring gear in the SFA is stronger than the 7.5" gear in the IFS diff. If you're still on the stock 3.slow, you have no need to worry about breaking ring gear IMO
#5
Registered User
Thread Starter
Join Date: Dec 2005
Location: Redding C.A.
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
I understand the ring gear is bigger. its a 8 inch just like me rearend. Im wondering about the carrier and bearings on the 4 cyl housing v.s. a ifs carrier. I know the ifs is 2 splines smaller pinion and 7.5 ring gear
#6
Registered User
Join Date: Jun 2005
Location: Holly Springs, North Carolina
Posts: 338
Likes: 0
Received 0 Likes
on
0 Posts
i know for a fact that the 4cyl SFA carrier and bearings are stronger than the 7.5 IFS diff. Im in the process of re gearing the 4cyl diff and it comes with the ring and pinion and all the bearings and shims new so thats deff stronger which gives me a good piece of mind.
#7
Registered User
Join Date: Oct 2006
Location: Some where in Utah
Posts: 366
Likes: 0
Received 0 Likes
on
0 Posts
I would definatly stick with all the SFA stuff.
Last edited by bruzer; 07-04-2007 at 09:04 AM.
Trending Topics
#8
Registered User
Thread Starter
Join Date: Dec 2005
Location: Redding C.A.
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
Thank you 4runner92sr5 thats exactly what i wanted to know. that just gave me the peice of ming i was looking for. I have hammered my if.s probly as hard as i will my straight axle and actually havent broken even a cv axle or u-joint so 4 cyl diff will be just fine.
#9
Registered User
#12
Registered User
Thread Starter
Join Date: Dec 2005
Location: Redding C.A.
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
really dont think that will be necessary. Honestly im not worried about strenth, I have never tore a cv bood, broke a cv axle or even a u joint. Im suprised. Im mainly doing a sas for more flex than what my ifs gives me.
#14
I'm doing my sas here soon and thinking about the lunch box
#15
Registered User
Join Date: Jul 2004
Location: Barcelona (Spain)
Posts: 917
Likes: 0
Received 0 Likes
on
0 Posts
Thread
Thread Starter
Forum
Replies
Last Post
kawazx636
The Classifieds GraveYard
34
10-06-2021 03:03 PM
live4soccer7
84-85 Trucks & 4Runners
3
05-11-2016 06:52 PM
83yotastockR
86-95 Trucks & 4Runners (Build-Up Section)
11
11-10-2015 06:54 AM
dirk89
86-95 Trucks & 4Runners
2
10-01-2015 05:15 PM