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Old 09-22-2009   #16 (permalink)
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Originally Posted by 302Feen View Post
Well, I don't want 4.10 gears. If it has 3.55's, I'll even use those until I can afford to do a gear swap with 3.73's and rebuild the rear end and t-lok.

Anything would be better than my stock gears, but 4.10's would be too much.

why would 4.10s be too much?

reg is right 5500 is too high for a stock motor... but who really knows what rpm u were shifting at...

once you have real gauges in there, shift at 5200 and go from there...

4.10s will greatly increase your 60ft times, and are still streetable believe it or not.
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Old 09-22-2009   #17 (permalink)
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why would 4.10s be too much?

reg is right 5500 is too high for a stock motor... but who really knows what rpm u were shifting at...

once you have real gauges in there, shift at 5200 and go from there...

4.10s will greatly increase your 60ft times, and are still streetable believe it or not.
4.10's with a 5 speed would be a little too low. 1st gear in the T-5's are already short as it is... add 4.10's to the mix and I might as well just start out in second.
I know they will work, but I don't want to go that steep with the gears.
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Old 09-22-2009   #18 (permalink)
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4.10's with a 5 speed would be a little too low. 1st gear in the T-5's are already short as it is... add 4.10's to the mix and I might as well just start out in second.
I know they will work, but I don't want to go that steep with the gears.


well.... then whyd you ask how to get low 60ft times if your not willing to change your setup? lol.
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Old 09-23-2009   #19 (permalink)
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well.... then whyd you ask how to get low 60ft times if your not willing to change your setup? lol.

You should really start reading the whole thread...

Gears have already been decided on.
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Old 09-23-2009   #20 (permalink)
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Well, I don't want 4.10 gears. If it has 3.55's, I'll even use those until I can afford to do a gear swap with 3.73's and rebuild the rear end and t-lok.

Anything would be better than my stock gears, but 4.10's would be too much.
most i've seen with a v-8 have 3.55 and 3.73..i dont recall everr seeing any with 4.10's..the only thing ive ever seen in the boneyard with 4.10's was a Ranger with the 4x4 off road package option..just check the axle tag on the Merc and you wont even have to take anything apart to find out

i know fox and SN95 cars have different length rears(or is it just the axles?now im confused),i dont think the explorer 8.8 is the same width either way,and being that they use leaf springs instead of control arm,im sure its far from a bolt in swap..you'd have to fabricate control arm and shock mounts,etc..

you are correct.however,in stating that they DO have 31 spline trac-locs inside

and IMO,4.10's,26" tire on ym setup were too deep..i lost .2 cuz of it..just ran out of gear,shifting at 5400rpms..stick with the 3.73's if you're motor doesnt scream to at least 6k rpms(which im sure neither of ours do)
you could use a 28" tire with 4.10's,but that makes your gear ratio roughly 3.77 anyway,so just go with 3.73 in the first place and dont worry about trying to stuff huge tires out back
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Old 09-23-2009   #21 (permalink)
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most i've seen with a v-8 have 3.55 and 3.73..i dont recall everr seeing any with 4.10's..the only thing ive ever seen in the boneyard with 4.10's was a Ranger with the 4x4 off road package option..just check the axle tag on the Merc and you wont even have to take anything apart to find out
Yeah, I'm going to check the tag on it and see. The door handles are broken on the driver door so I'll have to make it open and then look.

i know fox and SN95 cars have different length rears(or is it just the axles?now im confused),i dont think the explorer 8.8 is the same width either way,and being that they use leaf springs instead of control arm,im sure its far from a bolt in swap..you'd have to fabricate control arm and shock mounts,etc..
When I realized the Explorer had leaf springs I knew then that it wouldn't be a "bolt-n-go" operation. But I can at least snag the gears out of the rear end, which is probably what I'm going to do.

you are correct.however,in stating that they DO have 31 spline trac-locs inside

and IMO,4.10's,26" tire on ym setup were too deep..i lost .2 cuz of it..just ran out of gear,shifting at 5400rpms..stick with the 3.73's if you're motor doesnt scream to at least 6k rpms(which im sure neither of ours do)
you could use a 28" tire with 4.10's,but that makes your gear ratio roughly 3.77 anyway,so just go with 3.73 in the first place and dont worry about trying to stuff huge tires out back
I already have 26" tall tires and don't plan on getting anything bigger at the moment. So yeah, 3.73's or 3.55's will be great.
And it's only going to be temporary until I get the money to get some new gears and rebuild the whole rear end.

Thank you for the comments!
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Old 09-23-2009   #22 (permalink)
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Great runs. I def miss my 95GT. +1 on gears and wouldn't shift pass 5Krpms. Best way to find out is on a dyno, to see where you make the max power at what rpm. When i had all bolt on's and stuff, i kept it at 5Krpms. After the Heads, cam and carb'd it, it would pull to 6K. I also had 4.10's (through the years it had 3.08's, 3.73's, 3.55's and then finally the 4.10's)
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Old 09-23-2009   #23 (permalink)
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Great runs. I def miss my 95GT. +1 on gears and wouldn't shift pass 5Krpms. Best way to find out is on a dyno, to see where you make the max power at what rpm. When i had all bolt on's and stuff, i kept it at 5Krpms. After the Heads, cam and carb'd it, it would pull to 6K. I also had 4.10's (through the years it had 3.08's, 3.73's, 3.55's and then finally the 4.10's)
Was yours a 5 speed?

When I DO get new gears and rebuild kits and such, I am 100% set on 3.73's. The lowest I would go in my car is 3.90's and that isn't very likely. 3.73's just seem like they'd be the best street/strip gear ratio for me.
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Old 09-23-2009   #24 (permalink)
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Was yours a 5 speed?

When I DO get new gears and rebuild kits and such, I am 100% set on 3.73's. The lowest I would go in my car is 3.90's and that isn't very likely. 3.73's just seem like they'd be the best street/strip gear ratio for me.

It was a 5 speed. When i just had bolt on's, the 3.73's were great. When they took a crap on me is when i went to 3.55's and hated it. The 4.10's were down the road after i did the major mods. You'll def be happy with 3.73's though.
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Old 09-23-2009   #25 (permalink)
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It was a 5 speed. When i just had bolt on's, the 3.73's were great. When they took a crap on me is when i went to 3.55's and hated it. The 4.10's were down the road after i did the major mods. You'll def be happy with 3.73's though.
Awesome. Thanks for the advice.
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Old 09-23-2009   #26 (permalink)
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Originally Posted by need4spd90 View Post
most i've seen with a v-8 have 3.55 and 3.73..i dont recall everr seeing any with 4.10's..the only thing ive ever seen in the boneyard with 4.10's was a Ranger with the 4x4 off road package option..just check the axle tag on the Merc and you wont even have to take anything apart to find out

i know fox and SN95 cars have different length rears(or is it just the axles?now im confused),i dont think the explorer 8.8 is the same width either way,and being that they use leaf springs instead of control arm,im sure its far from a bolt in swap..you'd have to fabricate control arm and shock mounts,etc..

you are correct.however,in stating that they DO have 31 spline trac-locs inside

and IMO,4.10's,26" tire on ym setup were too deep..i lost .2 cuz of it..just ran out of gear,shifting at 5400rpms..stick with the 3.73's if you're motor doesnt scream to at least 6k rpms(which im sure neither of ours do)
you could use a 28" tire with 4.10's,but that makes your gear ratio roughly 3.77 anyway,so just go with 3.73 in the first place and dont worry about trying to stuff huge tires out back

w/ 4.10s he could trap up to 102mph at 52xx rpms...which would be perfect...

and he is not trapping that high, so no 4.10s would be just fine.... sorry off topic...o/p already said he doesnt want 4.10s
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Old 09-23-2009   #27 (permalink)
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You should really start reading the whole thread...

Gears have already been decided on.

i should start reading the whole thread...

i guess you missed where reg said the reason for your high 60ft times were your stock gearing and m/t tires....

so if traction is not the issue....

and you are decided on gears...

then obviously the only thing left is to make more power... you should know that feen
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Old 09-24-2009   #28 (permalink)
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w/ 4.10s he could trap up to 102mph at 52xx rpms...which would be perfect...

and he is not trapping that high, so no 4.10s would be just fine.... sorry off topic...o/p already said he doesnt want 4.10s

have you ever raced a car with 4.10's and a 26" tire and peak power at 5k rpms down the track?

i have.(and my peak hp comes at 5400 btw)..it doesnt work...

i went from 3.55 to 4.10 thinking it would be just fine(going by the online calcs)..my car was consistently .2 slower,at 2 different tracks,probably 15-20 passes..60ft times stayed virtually the same

that was more than enuff to convince me it wasnt working..

went to 3.73,car picked up almost .3 and 2 mph from where it was with the 3.55's..consistently..over 40 passes..60 ft times are .05-.08 better ..my personal experience...

and btw,the online calcs at slowgt.com say trap speed of 98mph at 5200rpms with 4.10,26" tire,and 1:1 trans gear(4th gear)
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Old 09-24-2009   #29 (permalink)
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have you ever raced a car with 4.10's and a 26" tire and peak power at 5k rpms down the track?

i have.(and my peak hp comes at 5400 btw)..it doesnt work...

i went from 3.55 to 4.10 thinking it would be just fine(going by the online calcs)..my car was consistently .2 slower,at 2 different tracks,probably 15-20 passes..60ft times stayed virtually the same

that was more than enuff to convince me it wasnt working..

went to 3.73,car picked up almost .3 and 2 mph from where it was with the 3.55's..consistently..over 40 passes..60 ft times are .05-.08 better ..my personal experience...

and btw,the online calcs at slowgt.com say trap speed of 98mph at 5200rpms with 4.10,26" tire,and 1:1 trans gear(4th gear)

thats a driving error or something is wrong with your engine...

bc 4.10s will help your 60ft times sorry.
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Old 09-24-2009   #30 (permalink)
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thats a driving error or something is wrong with your engine...

bc 4.10s will help your 60ft times sorry.
Well, the simple fact is that I'm not going as low as 4.10's. Whether it would lower my times or not, I still see no need in going any lower than 3.73's.
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