Topic: Top loader 4 speed. RUG AV Worth?

[J_Speegle]

  It does.   06846.  That's all of it.

Having a second didgit of a "0" eliminates the possibility of it coming out of a Cougar or Mercury doesn't it Mike?

For a Mustang it would be 0xxxx106846  or 0xxxx206846 if it's out of a 70. Does it have a number on the bottom line of the transmission tag?

Sorry if your getting in the weeds in relationship to your original "whats it worth" question.

[CCP]

  Not at all. The number on the bottom of the RUG tag is  011212.
 I would love to see the trans reunited with the car if it still exists.

                                          Pete.

[J_Speegle]

  Not at all. The number on the bottom of the RUG tag is  011212.

That only helps narrow down when the car it came from could have been built. Looking at my  records I find a RUG-AW with a transmission serial number (011180) close to that was that build on Sept 25th with a vin of  0F1096xx. So 1300 units (transmissions built) after this example. Of course due to need transmissions were not installed or used in sequential order. Have one with a lower trans serial number (different application) installed months after this example but again it was a different application and not a AV.

No smoking gun but rather narrowing the range

[Mike_B_SVT]

Having a second didgit of a "0" eliminates the possibility of it coming out of a Cougar or Mercury doesn't it Mike?

For a Mustang it would be 0xxxx106846  or 0xxxx206846 if it's out of a 70. Does it have a number on the bottom line of the transmission tag?

Sorry if your getting in the weeds in relationship to your original "whats it worth" question.

Nah, if it were from a Cougar / Mercury it could still have been something like  0xxxx506846.  Would have had a Sept '69 build date.

Could always submit it to Marti for research, but

[rcgt350]

So is a Wide Ratio’s 1st to 2nd closer together than the Close Ratio? And then the rest of the gears are wider apart than a Close Ratio?

[70cj428]

So is a Wide Ratio’s 1st to 2nd closer together than the Close Ratio?

Wide Ratio-

2.78 1st, 1.93 2nd, 1.36 3rd, 1.00 4th

Close Ratio-

2.32 1st, 1.67 2nd, 1.29 3rd, 1.00 4th

Your engine speed will drop less with a close ratio box on every shift. This helps keep the RPM's in the power band when shifting. Unfortunately, 1 st gear on a close ratio box isn't as low as a wide ratio box, so getting the car moving from a standing start is harder. You can make up for this by changing to a steeper rear gear but then your engine speeds on the highway are higher and you theoretical top speed will drop.

Modern cars remedy this situation with an extra overdrive gear ...

Since Boss 302's don't make a lot of torque at lower engine speeds, a wide ratio box makes them a whole lot nicer to drive, especially if your car was built with a 3.50 / 1  rear gear ...

Hope this helps, John

[Bossbill]

Road race tangent moved to lounge:
http://www.concoursmustang.com/forum/index.php?topic=19930.0