Summit rear end gears?

[marz442]

Just wondering how hard is it to swap out to a posi I have a 8.5 rear end what do I have to do to it?

 

[dogsht]

Cashmoneyspeed, I don't imagine you drive that car far & at speed. Like 80 mph on the interstate to the next large city. Despite the mild cam stock stall and short tires a 3.08, 3.23 or even 3.42 will really help get that thing get away from a light and up to speed quickly. If you spend much time at highway speed you will like the 3.08 or 3.23 better.

 

[cashmoneyspeed]

with all that extra weight are still looking for performance?

Performance as in speed? No. Car is a built lowrider mostly low n slow cruising. No burnouts, racing, etc. I just dont want it to be even more of a slug from a stop than it was before the new frame and 2 added batteries. Engine cooling is also a concern on hot summer days and cruising around in city traffic.

Cashmoneyspeed, I don't imagine you drive that car far & at speed. Like 80 mph on the interstate to the next large city. Despite the mild cam stock stall and short tires a 3.08, 3.23 or even 3.42 will really help get that thing get away from a light and up to speed quickly. If you spend much time at highway speed you will like the 3.08 or 3.23 better.

Actually a lot of the miles I put on are on the highway. Speed limits are usually 55 here so she cruises just fine with traffic at 60-65. Also good in the 85 mph range but haven't taken it past that and don't see a need to. I'm leaning towards the 3.08 since that's more of the middle ground between what I have and 3.42's. I've got 3.08's in my caprice, just wish I could use those so it would push me to finally install some 3.73's I picked up awhile back.

Anyone have any suggestions on brands to stay away from? I'd like to order from summit since I've for another list of stuff to order.

 

[cashmoneyspeed]

Alright well I've decided on the 3.08 gears. So I need to order the ring and pinion gear and what else? Planning on just using stock axles but do I need a new carrier also? Rear is a 10 bolt 7.5"

 

[cashmoneyspeed]

Alright well I've decided on the 3.08 gears. So I need to order the ring and pinion gear and what else? Planning on just using stock axles but do I need a new carrier also? Rear is a 10 bolt 7.5"

Anyone?

 

[techg8]

carrier break is 3.08 and down, 3.23 and up for the GM 7.5

http://www.differentials.com/technical- ... ier-breaks

If youre changing gearsets you may as well put a bearing and seal kit in the rear. I get stuff like that from www.JDrace.com