need a little help on building my rear

-
74demon

74demon

Well-Known Member
Joined
Nov 10, 2008
Messages
232
Reaction score
15
Location
baltimore,md
So the time has finally come for me to get my rear here the deal I'm going to be ordering a complete rear end from moser I'm getting the Moser 60 Built to Order rear but my issue is what differential should i go with my car is a 72 demon 440 stroker 4 speed car that's gonna see the track as well as the street i just want to get a differential that will work for both any help would be appreciated thank you ...here is the link to the order fourm on my options http://www.moserengineering.com/complete-rear-end-assemblies/12-bolt-part-number-configurator-1.html
 
I put a dana 60 with a trac lok and 4:10 gears in my 67 Dart. I am running a 360, 904, and hope to weigh 2800.
 
There's a difference between 'street' and 'I wanna cruise at 70mph for 2 hours'.

I would go with a 3.54 in that Dana if you are seeing street and track. Get a cam that will make use of that gear and your cubic inch displacement combo. Luckily you have a 4 speed so this allows you to get creative with cam choices.

With the right cam consistent 12.5's* are possible with the right intake, headers, and TRACTION.

With a 27" tall tire you will do 60mph at approx. 2750 rpms.
 
yeah my engine is probably more then i need to have in that car but its gonna be more of a local car and track car i know im going with 4.10 gears im just not to sure what will work best in type of differential my options are spool 35 spline, trac loc posi 35 spline , true trac 35 spline detriot locker 35 spline , and spool 40 spline
 
In my 70 Dart, I'm using a Strange S60 with a Detroit locker and 3:73 gears. 530 HP /520 FT LBS TQ 408 small block, with an A833 4 speed tranny.

I think a spool is strictly for race only, no street...So I wouldn't use a spool...I'd go with the Detroit locker for max strength, but they are a little noisy and "clunk" when going around turns...The only issues with running one would be noise, weight, and cost.

"A detroit Locker is a gear to gear locking diff. It doesnt slip. It "clunks" when you corner. If you've ever heard a Boss 429 or Boss 302 car turn sharp in a parking lot you've heard them. It's usually very noisey, but you'll never break it. If you want a top of the line limited slip for the street I'd only recommend the Detroit Tru Trac. The Auburns or any other cone-style diff is a waste of cash. They wear fairly quickly, and as they wear they produce metal particles that also ruin the gears. Get a clutch type, or Tru Trac. " -Quoted from "Moper"
 
Im a big fan of the truetrac, I worked on a sae race car when i was in college and we used a similar design for our diff. I was blown away how it worked, the gear type is the only way to go in my opinion.
I think an original Torsen diff is the kats pajamas, but the truetrac is very similar in design.
Truetrac
[ame="http://www.youtube.com/watch?v=lZmsY2YvVsc"]YouTube - Exploded View - Inside the Eaton TrueTrac Differential[/ame]
Torsen
[ame="http://www.youtube.com/watch?v=Z9iPqIQ_8iM"]YouTube - Diferencial Torsen (Autoblocante) / Self-locking Torsen Differential[/ame]
 
well i went with the locker and grand total was $3007.00 by far the most one lump some i have spent on my car and they said either end of this week or the begin of next im pretty pumed up to get it.
 
danna 60 detroit locker 4.10 gears total of $3000
rearend.jpg
 
You must log in or register to reply here.
-

Back
Top