Suggested rear end gears for a 99 police intceptor.

[Johnnyiroc]

Not all 99's have 3.55 RARs. I have seen both....I passed up buying some 99s because they were 3.27........thinking about the price of gas now....wish I did go 3.27

[Embassy]

My personal experience.

I installed 3.55s in my '98 P71 several years ago and have never experienced vibrations at high speeds.

There was a noticeable difference going from 3.27s to 3.55s. However, I only swapped out the gears since I was already installing a trac-loc.

[MIKEVIC]

I was wrong i do have 355 in the rear i checked the other day my tag reads 355 88 so ima just put the loc in that scott has for me (lincolnmania)

[texasvic]

Glad we could help.

[mrbear3800]

I wish I had 3.27's. These 2.73's are a bit lame. I do a decent amount of highway driving so 3.27's would be a good compromise I think.

I'm pretty sure its 2.73's I have. It holds 1st gear till like 45-50mph. The tag on the cover rusted to a blank piece of metal long ago. Totally unreadable. Threw it out when I changed my diff fluid a few weeks ago.

[evillally]

3.55 is a better highway gear. 3.27's didn't do shit for me...

[trife86]

I Had 3.08's in my 93CVPI which wasnt too bad at all. I recently changed out 3.08's in my t-bird to 3.73's which is awsome and i dont do too much highway running but it does rev up there some, 70mph = 2000rpm or so. but for the amount of trouble i shoulda done 4.10's

[sdacbob]

I wish I had 3.27's. These 2.73's are a bit lame. I do a decent amount of highway driving so 3.27's would be a good compromise I think.

I had 2.73's in mine and changed to 3.27's. Just bought some 3.73's and will put them in later this summer.

[BigTomZ]

I get some vibration over 85 mph with my stock driveshaft and 3.55's. Unfortunately I still have to replace my plastic intake manifold, so the MMC driveshaft will have to wait.

[DuceAnAHalf]

I wish I had 3.27's. These 2.73's are a bit lame. I do a decent amount of highway driving so 3.27's would be a good compromise I think.

I'm pretty sure its 2.73's I have. It holds 1st gear till like 45-50mph. The tag on the cover rusted to a blank piece of metal long ago. Totally unreadable. Threw it out when I changed my diff fluid a few weeks ago.

My 97 CVPI has the 3.27s it will hold 1st to about 60, second to 90, and third to 120.

[mercenvy]

I have 3.08s and I will be switching to 3.73 Trac-loc and AL driveshaft/extended tailshaft.

[DanHool]

Only '00 and '01 PI's came with 3.55 gears.

.

and some early 01 HPP's