7.5 & 7.625?

[jerminator623]

what does the 7.5 and 7.625 mean when your buying gears?

example: GM 10 Bolt 7.5" & 7.625 " differential

[UDLOSE98]

Re: 7.5 & 7.625?

its the diameter of the differential

[jerminator623]

Re: 7.5 & 7.625?

so is 7.5 a 3 series and 2.625 is a 2 series?

[IDoVoodoo]

Re: 7.5 & 7.625?

just the diameter like he said, either can be for 2 or 3 series carrier

[jerminator623]

Re: 7.5 & 7.625?

how can you tell if its three or two series do they call it somthing else?

[black98V6]

Re: 7.5 & 7.625?

series is based on the gears, 2 series is anything 3.08 and below, 3 series is 3.23, 3.42 and up, I believe there is a 4 series but you'd have to do more research on that.

7.5 and 7.625 diff is the size of the rear end, like a ford 9 inch.

I'm pretty sure the gears and carrier are the same for a 7.5 and 7.625. If you are buying gears and you currently have a 3.08 rear end and want to go up to 3.23 or 3.42's then you will also need to get a 3 series carrier.

[jerminator623]

Re: 7.5 & 7.625?

yea but ive seen some people with 4.10 gears that go with a 2 series carrier same with 3.73s
so what my question is: is their a name besides 2 series and where would you find those?

or am i just totaly out of my mind. i could of sowrn i heard of that before though.:)

[IDoVoodoo]

Re: 7.5 & 7.625?

yeah, you can get 3.73 or 4.10's for a two series carrier. Are you trying to get gears for your open differential?

[jerminator623]

Re: 7.5 & 7.625?

no ive got a 2 series lsd

[IDoVoodoo]

Re: 7.5 & 7.625?

try this:

http://store.summitracing.com/egnsea...115+4294895863

http://store.summitracing.com/egnsea...115+4294895863

[jerminator623]

Re: 7.5 & 7.625?

i dont get it why is one more then the other? everything they say about it is the same on both of them. is one better than the other?

[IDoVoodoo]

Re: 7.5 & 7.625?

the cheaper sportsman gears are for "normal street-driven applications". The regular richmond gears can handle more for drag racing and such.

[jerminator623]

Re: 7.5 & 7.625?

which do you think i should get? i hit the track very rarely and maybe race 10 times in a year

[IDoVoodoo]

Re: 7.5 & 7.625?

i'm sure you'd be fine with the sportsman but $40 more isn't much for some peace of mind.

[ReodDai]

Re: 7.5 & 7.625?

series is based on the gears, 2 series is anything 3.08 and below, 3 series is 3.23, 3.42 and up,

I'm pretty sure the gears and carrier are the same for a 7.5 and 7.625. If you are buying gears and you currently have a 3.08 rear end and want to go up to 3.23 or 3.42's then you will also need to get a 3 series carrier.

Ok lets clear up a little confusion. The first part you said about series 2 being anything 3.08 and below is correct. However, the other part of that is if you are equiped with 3.08 or below gears from the factory you have a series 2 carrier with series 2 gears. If you are 3.23 or above from the factory you have series 3 gears with a series 3 carrier. If you have a series 2 carrier and want gears above 3.08 then just buy whatever gears you want (4.10, 3.73, ect) and make sure they are for a series 2 carrier. I know for a fact Strange sells gears in all ratios for both carriers. Check Thunderracing.