Chevy & GMC Vans

ok what's the deal, why are yukons 4.1's twice the price of their 3.7's and why do most companies not even make 3.7's for the front....?

Cobra wrote:ok what's the deal, why are yukons 4.1's twice the price of their 3.7's and why do most companys not even make 3.7's for the front....?

Randys r&p prices are about the same on the rear gears.For the front,the 4.11's actually are much cheaper than the 3.73's. Where you getting your prices,work?

just roaming around the net and the 3.73 are all more the the 4.10 or 4.11 why...? i don't think i need to go as low as 4.10 since i intend to put a V8 in and i don't want to lose that much top-end speed

Ok gotcha,thought you were saying 4.11's were twice the price!
Try looking for some used GM 3.73,they were fairly common. In our vans and s10's.
I picked up a 4.11 rear r&p with a g80 on ebay for a pretty good deal.
I shopped around quite a bit over a period of a few months,ended up buying from several different sellers. But I did end up with some good bargains.

i actually did a quick search on ebay first was about the same as the normal stores but no fronts where listed... going to try phoning some locale places this week sortta wanna get it done before neco

oh one more thing what the difference between a series 2 and 3 diff carrier (this is still outta my league)

i gotta stop editting this but i'm excited again i think i found the diff i want and it has a gm part number 12471371 says it's for camaro or firebird right size and spline count

I don't know the difference between a series 2 or 3 carrier either!
Our rear diffs. are 7.625 or 7.5 I believe. I know mines a 7.625. Our front diffs are 7.2 or 7.25 same thing just depends who's listing them. I never did find any used gears for my front diff ,got a new set.

i think i figured out the diff carrier series
I believe series 3 is for 3.23-4.11 and series 2 is for2.73- 3.08 (please for god sake correct me if i'm wrong)

if that's right i already have a series 3 in my truck so all these gear that say MUST BE USE WITH SERIES 3 CARRIER will fit no problem as means that the new diff i want will fit since it's also a series 3 (in theory)

i just email someone who lists it for a bit over $500 to confirm the have it and that it is indeed a 7.6" 28 spline the description they have on there site is horrible (or should i say none existant)

oh boy now i'm really excided
wish i knew how to install this thing myself would save me so much money, my mechanic is going to freak out if i bring him all these parts......

Cobra wrote:I believe series 3 is for 3.23-4.11 and series 2 is for2.73- 3.08

This is correct.

Cobra wrote:i just email someone who lists it for a bit over $500 to confirm the have it and that it is indeed a 7.6" 28 spline the description they have on there site is horrible (or should i say none existant)

What are you getting for the $500?

LiftedAWDAstro wrote:What are you getting for the $500?

That's what I was wondering,hope its more than just the rear r&p! Maybe he found a locker too! I think I got about $500 in parts front & back with the G80. That's also including the bearing & shim install kits.

500 was just for the diff http://www.torsen.com/products/T-2.htm should be what i get but that why i had to email them to make sure that's what it is. the ring and pinion and install kits i haven't done the pricing yet damn price of the 3.73 are scaring me away

send me a message with exactly what you need, and I can propably get you a good price on it...

i'm torn the 4.1's are cheaper but i think they will be over kill since i have no intention of larget tires, i do however intend to tow but it'll mainly be city driving and a little highway on weekends. I also intend to put a V8 in either when my engine kicks the bucket (probably won't happen) or when i happen to find the donor vehicle for cheaper then i can pass up

so what do you think go with teh 4.1's or hunt down the 3.73's

I'm thinking 3.73 for myself, as I know I don't have the ability or tools needed to switch out the gears myself, but I could purchase a whole rear axle of about the same mileage and swap that myself, at least I think so. The 3.73s are common enough in full rear end assemblies at the wreckers, although they are pretty expensive from what I have seen. I might even be able to find one with a g80. What are you thinking/planning on towing with it. I guess that is the question. My pop-up at under 2000Lbs GVW is not going to need the 3.73s, even though they would be nice. If you are going to a larger trailer, or heavier loads being towed, base your choice on what you are planning on towing. I am inferring from what you said you are looking at heavier loads, so I would go 4.10s. If I purchased the larger trailer I keep considering, I would probably go the 4.10 route.

hmmm what i'd be towing in order of weight would be Cobra Spec Tramper, car trailer with Toyota MR2 (i intend to build a race car sortta ) and at least once and old thunder bird (my grandfathers car) on the car trailer

those are the only things i can think of that i know i'd tow

If you are towing loads like that, you will most certainly appreciate the 4.10s.