Wes8398 said:
Thanks again for all the info. But, see, look at the last 3 posts before this one - 2 guys sayin 'go for it, don't worry about the other stuff right now', then someone adds in their 2 cents that are more towards 'don't half ass it and save for ALL the things at once' - this is what makes it so tough to make an informed decision. Everyone's got their own preferences and experiences. Obviously, lots of you guys/girls have made the gear swap happen without any problems and without any other mods. Thats what I like to hear, because that's what I can afford when the winter is over. As I said previously though, I just want to be sure that I'm not half assing the mod and putting my car at risk of damage because I didn't do things "right". By the sounds of it, doing just gears (and having them installed professionally, with good lube in the diff, and a change in tranny lube) is NOT half-assing the mod, but rather just not getting the MOST out of it like you would with adding a JMOD or shift kit. Would this be an accurate summary?
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I dunno about 94GtStAnG5o, but ive had my 4:10's in for over a year now and never had a problem. Yer NOT gonna blow up your rear end with 4:10's unless you have some sort of an adder. If yer turbo'ed, SC'd, or Juiced then yeah you need to be a bit more careful and probably go with a built rear end if playing with 4:10s
I certainly wouldnt consider 4:10's and a lube job half assing it. As far as the install kit goes there is one vfor higher mileage cars and one for lower. i believe the higher mileage one has new bearings. only and extra 20-30 bucks on the kit.
Actually im pretty suprised. Of all the times of seeing questions about 4:10 installs, over the past several years of lurking around on MPH, Mustangboards.com and BMC.com, i have never seen anyone reccommend anything but a good installer and some good lube unless you have a power adder.
As for the JMOD. Why is everyone claiming this is needed for 4:10's???? The JMOD aka "Jerry Mod" is a modification from the engineer of the auto tranny to RESTORE it back to how it was ORIGIONALLY designed. It has NOTHING to do with 4:10's. You can do the Jmod with or without the gearing. basically it is a home made shift kit. \
When the engineer (jerry) of the auto tranny made the damn thing the ford guys drove a car with the transmission and felt it was just a little too aggressive, they felt most owners of AUTO's want something kinder and gentler so they reduced the size of several holes in the plate to make it shift a bit more gentle. it was all origionally designed to work with the stock 3:27 gears.
It has NOTHING to do with 4:10's and should be considered an entirely independant mod.
and seeing as how it runs you about 5 bucks, it is a pretty good mod to do if you have the know-how. I never had it done, just cause ive seen people on other boards fuck up thier whole transmission, so if you do it and dont know much about it, dont do it yourself. find somone who really knows thier shit. if done properly i hear it is a real kick in the pants!
As far as shift kits, once again they are NOT something designed to get "The most out of 4:10's" but to get the most out of the transmission. once again, should be considered seperate mods, rather than considering equal to an intercooler for an s/c
4:10's + good lube without an adder, you will NOT blow up your rear end. TRUST ME. you will have a better chance of screwing something up with a shift kit or jmod.
Adding the other mods is certainly going to be a good fun idea, but it is in no way a requirement for 4:10's