Rear end build

sniperd · May 18th, 2009, 07:42 PM

I have full bolt on's (H/C/I) and my next step is to get some 4.10 gears, However like always their's many ways to take things too far, Im on a fairly tight budget - However I have some questions, as I would rather do it right the first time.

1) Should I be buying a new trac-lok at this time too?
2) While im at that should I get a 31 spliner and then new axles for another 250$?
3) Will a new trac-lok and axles boost the install cost up alot?
4) What's the point of the 5 lug conversion? Just for the Disc breaks?
5) What HP level will the stock axles take someone to?
6) Are their any tricks to beef up the rear breaks without going fully disc conversion so i can run 31 splines but without going into the whole break system?
7) What should I buy with the trac-lok/gears to take to get it installed? Just a bearing/install kit? Can someone recommend one.

sniperd · May 19th, 2009, 03:27 PM

Anyone have any suggestions? Finding it hard to get the best bang for the buck out of this problem

1slo5.0 · May 19th, 2009, 03:41 PM

Originally Posted by sniperd

I have full bolt on's (H/C/I) and my next step is to get some 4.10 gears, However like always their's many ways to take things too far, Im on a fairly tight budget - However I have some questions, as I would rather do it right the first time.

1) Should I be buying a new trac-lok at this time too?
2) While im at that should I get a 31 spliner and then new axles for another 250$?
3) Will a new trac-lok and axles boost the install cost up alot?
4) What's the point of the 5 lug conversion? Just for the Disc breaks?
5) What HP level will the stock axles take someone to?
6) Are their any tricks to beef up the rear breaks without going fully disc conversion so i can run 31 splines but without going into the whole break system?
7) What should I buy with the trac-lok/gears to take to get it installed? Just a bearing/install kit? Can someone recommend one.

1) You can rebuild your trac-lok. Ryan did a great article on this and it is stickied. I highly recommend reading it. There is alot of good info in there.

2) A 31 spline upgrade is a good idea if you plan on making more horsepower down the road. If there is any good amount of miles on your car the axles probably have been abused pretty bad.

3) Yes a new traction lock and axles will increase the cost of the rebuild. Figure another $500 at least depending on what differential you go with.

4) The only point of a 5 lug conversion is for wheel selection. Most companies make 4 lug wheels now so this isn't really an issue anymore. The number of wheel studs has nothing to do with breaks. You can get 4 lug disc brakes too.

5) Debateable. Its not really a horsepower issue as much as its a sticky tire issue. Manual transmissions are hard on everything in the drivetrain. Combine launching a manual transmission car hard with a set of slicks and you have a recipe for broken stock axles.

6) There are no tricks for the factory rear drum brakes. Upgrading to discs is your next step. There are many options out there. Axle spline count has nothing to do with the brake system.

7) Summit Racing sells install kits that come with all of the needed bearings and shims.

sniperd · May 19th, 2009, 04:15 PM

Awesome, Thank you - Much appreciated.

I assumed I needed a new trak-lok and didnt realize the stock one was just as good rebuilt, Also being able to upgrade to 31 splines and use the 4 lug and then upgrading to disc's later is good to know

grnstang · May 19th, 2009, 11:40 PM

yeah the trak lok in our cars has a bunch of clutches in it that get worn out over time, usually causing one wheel peel, etc. i recommend buying the rebuild kit with carbon clutches, they are stronger and last longer. all rebuild kits might come with carbon clutches now, i am not sure.

R0B0T · May 20th, 2009, 10:52 AM

you can also get a set of aftermarket 28 spline axles that are significantly stronger than the stock 28s and use the stock differential.

regardless of whether you get 28 or 31 spline axles, i personally would install a set of c-clip eliminators and keep the drum brakes to keep costs down.

but, if you don't drag race or have sticky tires, it wouldn't be as important to have c clip eliminators.

sniperd · May 20th, 2009, 04:45 PM

what's the point in the c clip eliminators?

1slo5.0 · May 20th, 2009, 08:36 PM

Originally Posted by sniperd

what's the point in the c clip eliminators?

The factory axles have c-clips that hold them in. C-clip eliminators do just what the name implies, eliminate the C-clips and use bolt in axle retention instead.

93mustank · May 20th, 2009, 09:21 PM

Originally Posted by sniperd

what's the point in the c clip eliminators?

baine21225 · May 20th, 2009, 11:31 PM

they stop you from picking bad backspacing?

superbean · May 21st, 2009, 10:14 AM

LOL oops!

1slo5.0 · May 21st, 2009, 02:45 PM

Originally Posted by baine21225

they stop you from picking bad backspacing?

LMFAO!!!!

grnstang · May 21st, 2009, 03:28 PM

Originally Posted by 1slo5.0

LMFAO!!!!

is he kidding?

1slo5.0 · May 21st, 2009, 05:23 PM

Originally Posted by grnstang

is he kidding?

Yes, Baine is not stupid.

89LX347 · May 21st, 2009, 06:10 PM

Originally Posted by baine21225

they stop you from picking bad backspacing?

riding the messican way. how we roll around here

grnstang · May 22nd, 2009, 12:05 PM

LOL good

baine21225 · May 22nd, 2009, 01:53 PM

aren't the eliminators mandatory once you hit a certain time?

1slo5.0 · May 22nd, 2009, 08:19 PM

Originally Posted by baine21225

aren't the eliminators mandatory once you hit a certain time?

Yes.

May 18th, 2009, 07:42 PM	#1
sniperd Regular 1989 Mustang LX 5.0 Join Date: Apr 2009 Location: Nevada Posts: 327 iTrader: 0 reviews	Rear end build I have full bolt on's (H/C/I) and my next step is to get some 4.10 gears, However like always their's many ways to take things too far, Im on a fairly tight budget - However I have some questions, as I would rather do it right the first time. 1) Should I be buying a new trac-lok at this time too? 2) While im at that should I get a 31 spliner and then new axles for another 250$? 3) Will a new trac-lok and axles boost the install cost up alot? 4) What's the point of the 5 lug conversion? Just for the Disc breaks? 5) What HP level will the stock axles take someone to? 6) Are their any tricks to beef up the rear breaks without going fully disc conversion so i can run 31 splines but without going into the whole break system? 7) What should I buy with the trac-lok/gears to take to get it installed? Just a bearing/install kit? Can someone recommend one.

May 19th, 2009, 11:40 PM	#5
grnstang Hardcore Enthusiast 91 LX 13.7@101 Join Date: Oct 2008 Location: Norwalk OH Posts: 1,426 iTrader: 1 reviews	yeah the trak lok in our cars has a bunch of clutches in it that get worn out over time, usually causing one wheel peel, etc. i recommend buying the rebuild kit with carbon clutches, they are stronger and last longer. all rebuild kits might come with carbon clutches now, i am not sure. __________________

May 20th, 2009, 11:31 PM	#10
baine21225 MM Fanatic Join Date: Jun 2007 Location: Baltimore, MD Posts: 4,349 iTrader: 1 reviews	they stop you from picking bad backspacing? __________________ "That's how Dad did it, that's how America does it... and it's worked out pretty well so far..."

May 21st, 2009, 10:14 AM	#11
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	LOL oops! __________________ weeee foooord!

May 22nd, 2009, 12:05 PM	#16
grnstang Hardcore Enthusiast 91 LX 13.7@101 Join Date: Oct 2008 Location: Norwalk OH Posts: 1,426 iTrader: 1 reviews	LOL good __________________

May 19th, 2009, 03:27 PM	#2
sniperd Regular 1989 Mustang LX 5.0 Join Date: Apr 2009 Location: Nevada Posts: 327 iTrader: 0 reviews	Anyone have any suggestions? Finding it hard to get the best bang for the buck out of this problem

May 19th, 2009, 04:15 PM	#4
sniperd Regular 1989 Mustang LX 5.0 Join Date: Apr 2009 Location: Nevada Posts: 327 iTrader: 0 reviews	Awesome, Thank you - Much appreciated. I assumed I needed a new trak-lok and didnt realize the stock one was just as good rebuilt, Also being able to upgrade to 31 splines and use the 4 lug and then upgrading to disc's later is good to know

May 20th, 2009, 10:52 AM	#6
R0B0T Banned 12.8@103... stock motor 11.8@113...150 shot Join Date: Apr 2008 Posts: 464 iTrader: 0 reviews	you can also get a set of aftermarket 28 spline axles that are significantly stronger than the stock 28s and use the stock differential. regardless of whether you get 28 or 31 spline axles, i personally would install a set of c-clip eliminators and keep the drum brakes to keep costs down. but, if you don't drag race or have sticky tires, it wouldn't be as important to have c clip eliminators.

May 20th, 2009, 04:45 PM	#7
sniperd Regular 1989 Mustang LX 5.0 Join Date: Apr 2009 Location: Nevada Posts: 327 iTrader: 0 reviews	what's the point in the c clip eliminators?

May 22nd, 2009, 01:53 PM	#17
baine21225 MM Fanatic Join Date: Jun 2007 Location: Baltimore, MD Posts: 4,349 iTrader: 1 reviews	aren't the eliminators mandatory once you hit a certain time? __________________ "That's how Dad did it, that's how America does it... and it's worked out pretty well so far..."

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