3.90's?
#1
12-14-2004 | 07:02 PM
Thread Starter
|
MustangExhaust.Com Mod.
Joined: Nov 2004
Posts: 11
From: Tempe, AZ
3.90's?
I am planning on having Motive 3.90's installed in the next two weeks. I was just wondering if anybody here has, or knows somebody that has 3.90's? I have havent heard anything negative about Motive gears, or 3.90's, but i would like to know everything that somebody can tell me about their experience with them. Thanks in advance! 
#6
12-16-2004 | 02:32 PM
Super Moderator
Joined: Sep 2004
Posts: 6,312
From: Mexico
Originally Posted by WhiteDevil
You will need a few extra parts though. It's not a direct replacement like the FRPP gears.. might cost you more money than going with 4.10 FRPP gears..
...those gears are direct replacement and if the car is pretty new it will not need new bearings so no extra parts will be needed! 
#7
12-16-2004 | 02:52 PM
1/4 mile junkie
Joined: Dec 2004
Posts: 86
From: Tucson, AZ
are you positive? I haven't done a gear swap myself, but the shop I took it to and two others said that they only installed FRPP gears for mustangs for the normal price, otherwise it was like $80 higher. Don't know the details, but I am 90% sure there is more to the motive gears for our cars, but of course I could be wrong
#8
12-16-2004 | 02:54 PM
Super Moderator
Joined: Sep 2004
Posts: 6,312
From: Mexico
Originally Posted by WhiteDevil
are you positive? I haven't done a gear swap myself, but the shop I took it to and two others said that they only installed FRPP gears for mustangs for the normal price, otherwise it was like $80 higher. Don't know the details, but I am 90% sure there is more to the motive gears for our cars, but of course I could be wrong
..otherwise its just a direct swap! ..whatever shop told you it would be more for motives were trying to take more money from you! 
#9
12-16-2004 | 02:57 PM
1/4 mile junkie
Joined: Dec 2004
Posts: 86
From: Tucson, AZ
Originally Posted by 4.6 Love
The only extra parts that you might need are new bearings which are not needed on a low mileage car! ..otherwise its just a direct swap! ..whatever shop told you it would be more for motives were trying to take more money from you!
..otherwise its just a direct swap! ..whatever shop told you it would be more for motives were trying to take more money from you! 
I guess its a pretty common thing around AZ for shops to charge more for motive gears, but nobody knows why. Crazy
#10
12-16-2004 | 03:06 PM
Ex Mini Smack King
Joined: Nov 2004
Posts: 868
From: St. Louis
Most shops that do gears often will charge you less for the Ford brand because they do not have to measure the backspacing depth since Ford's MHD design. All Ford gears use the same backspacing hence the name Master housing demision or MHD. So they can be done quicker with less tools. I have had two sets of gears put in my 02 and both the Richmond and Ford slipped right in with minimal shim adjusting. 3.90 is a nice ratio tall but not too tall.
#11
12-16-2004 | 03:08 PM
1/4 mile junkie
Joined: Dec 2004
Posts: 86
From: Tucson, AZ
Originally Posted by Blue02GT
Most shops that do gears often will charge you less for the Ford brand because they do not have to measure the backspacing depth since Ford's MHD design. All Ford gears use the same backspacing hence the name Master housing demision or MHD. So they can be done quicker with less tools. I have had two sets of gears put in my 02 and both the Richmond and Ford slipped right in with minimal shim adjusting. 3.90 is a nice ratio tall but not too tall.
