Poor car salesman, he didn't deserve you that day. He should have just told you that the differential is the same unless you go for an optional differential and that the gear ratios on the 4 and 5 speed transmission produce different final drive ratios (not that the differences are real discernable unless you are towing something or trying to go just a little faster depending upon what gear you are in.). Why did you ask him that, he's just trying to get to the final price to get the damn thing off the lot. You wanna know that, then get a brochure or do your homework on line thru googling it.
I mean really, can you tell me the difference in these figures and how it relates to whatever differential you hook them up to ?
Gear ratio comparison: Gear 5spd 4spd
1st 3.68 3.76
2nd 2.00 2.02
3rd 1.33 1.32
4th 1.00 1.00
5th 0.81 ----
What are you after towing, speed, fuel economy ? It's a "gad" (gnat's @ss difference) across the board, you might find that one comes from a dead stop a fraction of a second or two quicker thru the 1/4 mile, another may get an mpg more or less here and there, depending upon traffic conditions and yet another might haul similar loads at differing rpm's with identical engines. Why didn't you just ask him about bore and stroke, compression ratios, timing or the cam specs while you were at it ? The hardest part of any sale is finding the payment and qualifying someone, not whether the vehicle will perform as advertised or drive off the lot under it's own power ? I could understand if you were trying to get a vehicle for a particular purpose in mind, but again, a Dodge 1500 series truck is about the same. As a general rule, the one that has a plainer/workman-like look to it means it's generally intended to be a worker and not a shower. Add a towing package or whether it's already included and set up that way is a general indication too. For towing, look at trailing and hauling capacities, there's really very little difference in same size class vehicles, one would not expect a Ranger to work as hard as a 1500/2500 or even a 3500 series truck. Same goes with gasoline vs diesel engines. And if it's not about towing, well, what's the difference between 15 and 15.1 seconds on a quater mile time, unless you are racing for pink slips ?