Skip to main content
Topic: Opinion: Shift kit or 3.73s (Read 3978 times) previous topic - next topic

Opinion: Shift kit or 3.73s

Reply #30
Well if you're going to be driving the car regularly (like a DD, like my car) then I'd say go with some 3.27s.  I just put mine in today and the difference in HUGE.  Turning 2,000rpm at highway speed in OD is as high as I'd want to go for a DD.  I'm also planning to get a shift kit in a couple of weeks (along with a new speedo gear of course).  Should be a great combo of mods.

Opinion: Shift kit or 3.73s

Reply #31
Quote from: V8Demon;201294
D  on your shifter is 1st, 2nd & 3rd without O/D (otherwise known as 4th).  The mod Tom mentions deletes that option and the AOD will act as if in the D with the O around it position....

Paul, I'm not sure what you are saying...

Anyway the D position now only gives a 1st to 2nd shift and never any higher... O/D operates with the normal 1-2-3-4(O/D) pattern, only way to prevent the O/D shift is keep it on the floor... Works fine for drag racing, and with 3.73s I'm yet to find a mountain it won't scoot up in O/D...

With O/D 3.73s are fine on the highway... IF I ever swap gears, it will be for 4.10s... That's what's in my '93 Lightning...

Opinion: Shift kit or 3.73s

Reply #32
D normally locks the overdrive gear out completely....I mistook what you said about the mod.  Word jumble in my head.
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!

Opinion: Shift kit or 3.73s

Reply #33
Quote from: TurboCoupe50;201357


With O/D 3.73s are fine on the highway... IF I ever swap gears, it will be for 4.10s... That's what's in my '93 Lightning...


Yep. I turn maybe 2300 rpms at 60 mph on the highway with 3.73 gears. Plus I still get about 24 mpg :D
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Opinion: Shift kit or 3.73s

Reply #34
After rereading the post it is clear now. Thanks.

The 3.73's would probably be great if the car would hook. The small 14" tires spin quite a bit. Good fun factor though!
 
 The shift kit would most likely be the best mod for the buck and time spent.

I'd vote for the stall before the gear.
 
  A shift kit with the right stall would be a great starting point. :burnout:
[SIGPIC][/SIGPIC]88 t-bird: 5.0ho, gt40y, crane 2031, fms 1.7, paxton@5#, aod wide ratio, tci stall, performer rpm upper, 70mm bbk, pro m 60, 42#s, 3.73 7.5" posi, jba shorties, borla, upr x. 13.4 @ 104mph. cbaza, moates, tuned by decipha

Opinion: Shift kit or 3.73s

Reply #35
Quote from: t.birdsc;201511


The 3.73's would probably be great if the car would hook. The small 14" tires spin quite a bit.
 
 

Believe me I know........
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Opinion: Shift kit or 3.73s

Reply #36
Quote from: t.birdsc;201511
After rereading the post it is clear now. Thanks.

The 3.73's would probably be great if the car would hook. The small 14" tires spin quite a bit. Good fun factor though!
 
 The shift kit would most likely be the best mod for the buck and time spent.

I'd vote for the stall before the gear.
 
  A shift kit with the right stall would be a great starting point. :burnout:


The car is an XR7, 15" wheels...:D
I don't remember mentioning a stall, since this isn't the right oppurtunity for me to get one I wasn't worrying about it.

I'm going to be grabbing a shift kit first, seeing as I found one BNIB for $10.

Opinion: Shift kit or 3.73s

Reply #37
Quote from: 88XR7;202748
The car is an XR7, 15" wheels...:D
I don't remember mentioning a stall, since this isn't the right oppurtunity for me to get one I wasn't worrying about it.

I'm going to be grabbing a shift kit first, seeing as I found one BNIB for $10.


That's a good find for $10. :)

A stall might a better choice before gears imho but I can't speak from experience. At least...............not yet...........:evilgrin:

Those 15" should give you a better tire than the 14" which are presently stuck on mine.
 
Good luck :D
 Mike
[SIGPIC][/SIGPIC]88 t-bird: 5.0ho, gt40y, crane 2031, fms 1.7, paxton@5#, aod wide ratio, tci stall, performer rpm upper, 70mm bbk, pro m 60, 42#s, 3.73 7.5" posi, jba shorties, borla, upr x. 13.4 @ 104mph. cbaza, moates, tuned by decipha

Opinion: Shift kit or 3.73s

Reply #38
Definitely do gears before a convertor or else you will end up hating your expensive new convertor...too much time spent stalling the convertor with 2.73's will cause some excessive heat in the tranny...if you had 3.73's or better it would be a non-issue.  Shift kit is a good basic start...the 3.73's are definitely the bigger bang for the buck.
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads