Lsx swap rear end
Thread Starter
Teching In
Joined: Mar 2017
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From: Omaha, Nebraska
Lsx swap rear end I have a 1998 mustang v6 ill be swapping a 6.0 lq4 into soon, im wondering what rear end i should use? Is it a ok idea to run the stock one to get everything set up and upgrade when it goes out or would i need a different length driveshaft with another rear end compared to this one? Thanks for any info i know the stock one probably isnt rated for much but if i can get it moving under its own power with that rear i would be happy, also would i need to upgrade the whole diff or just the gears? if i can keep it in there for a little bit ill probably weld it or have it welded just because its a open diff and thats no fun at all, thanks again!!!!!
Last edited by boostedbuckets402; Mar 11, 2017 at 01:40 AM.
By "welding it", do you mean welding the spider gears? If so, that is a very bad idea for a street car and maybe even worse for the track! Welding the spider gears will eliminate any differential action in the rear end. When you make a turn, the real wheel on the outside of the turn must travel farther than the one on the inside, the differential action of the rearend allows this. Welding the spider gears will force the inside tire to travel the same distance as the outer and the only way that happens is by spinning the inner wheel.
If you are talking about "welding it" for the track, if the stock rearend isn't strong enough for the new power, welding the spiders won't make it stronger. Most likely, you will either break the spider gears at the weld, or you will break something else.
Your 6 cylinder car should have the 7.5" rearend, your best bet would be to buy an 8.8 out of a v8 powered mustang and put it in your car.
If you are talking about "welding it" for the track, if the stock rearend isn't strong enough for the new power, welding the spiders won't make it stronger. Most likely, you will either break the spider gears at the weld, or you will break something else.
Your 6 cylinder car should have the 7.5" rearend, your best bet would be to buy an 8.8 out of a v8 powered mustang and put it in your car.
Thread Starter
Teching In
Joined: Mar 2017
Posts: 19
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From: Omaha, Nebraska
By "welding it", do you mean welding the spider gears? If so, that is a very bad idea for a street car and maybe even worse for the track! Welding the spider gears will eliminate any differential action in the rear end. When you make a turn, the real wheel on the outside of the turn must travel farther than the one on the inside, the differential action of the rearend allows this. Welding the spider gears will force the inside tire to travel the same distance as the outer and the only way that happens is by spinning the inner wheel.
If you are talking about "welding it" for the track, if the stock rearend isn't strong enough for the new power, welding the spiders won't make it stronger. Most likely, you will either break the spider gears at the weld, or you will break something else.
Your 6 cylinder car should have the 7.5" rearend, your best bet would be to buy an 8.8 out of a v8 powered mustang and put it in your car.
If you are talking about "welding it" for the track, if the stock rearend isn't strong enough for the new power, welding the spiders won't make it stronger. Most likely, you will either break the spider gears at the weld, or you will break something else.
Your 6 cylinder car should have the 7.5" rearend, your best bet would be to buy an 8.8 out of a v8 powered mustang and put it in your car.
you can find a clutch type posi from an explorer 8.8 and put that in. they are very common.
ive run welded diffs before. not really a big deal with street tires.
but, i wouldnt do it in a c-clip rear again. launching an axle at speed is a highly ***-puckering experience
ive run welded diffs before. not really a big deal with street tires.
but, i wouldnt do it in a c-clip rear again. launching an axle at speed is a highly ***-puckering experience
Thread Starter
Teching In
Joined: Mar 2017
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From: Omaha, Nebraska
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Theres no need to figure this stuff out on your own. Theres thousands of swaps just like this lol
Edit: i believe the pinion flange is different 7.5 to 8.8 so if you find 1 grab the shaft too
Edit: i believe the pinion flange is different 7.5 to 8.8 so if you find 1 grab the shaft too
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TECH Fanatic
Joined: Jan 2010
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From: sarasota fl
Ok, (knuckles cracking......) while I'm no expert, I've done my fair share of 8.8 reserch, for my jeep(exorer 8.8) and the caddy(grand marquis/crown vic)
Do not do an explorer housing, the pumpkin is offset, the mustang 8.8's are centered.
Do use the explorer's posi unit, as truckdoug said, they will be easier to find along with a wide array of gears, the other benefit is they will be set up for 31 spline axles, witch I don't think your genration of mustang came with unless it was a cobra.
The axle in your car (edge mustang) was used from 98-04, the actual housing is wider than the previous years sn95 mustangs , not to say one out of an earlier gt wouldn't work, but You will have to consider your wheel/tire/offset combo to fit the car.
Do not do an explorer housing, the pumpkin is offset, the mustang 8.8's are centered.
Do use the explorer's posi unit, as truckdoug said, they will be easier to find along with a wide array of gears, the other benefit is they will be set up for 31 spline axles, witch I don't think your genration of mustang came with unless it was a cobra.
The axle in your car (edge mustang) was used from 98-04, the actual housing is wider than the previous years sn95 mustangs , not to say one out of an earlier gt wouldn't work, but You will have to consider your wheel/tire/offset combo to fit the car.
Thread Starter
Teching In
Joined: Mar 2017
Posts: 19
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From: Omaha, Nebraska
Ok, (knuckles cracking......) while I'm no expert, I've done my fair share of 8.8 reserch, for my jeep(exorer 8.8) and the caddy(grand marquis/crown vic)
Do not do an explorer housing, the pumpkin is offset, the mustang 8.8's are centered.
Do use the explorer's posi unit, as truckdoug said, they will be easier to find along with a wide array of gears, the other benefit is they will be set up for 31 spline axles, witch I don't think your genration of mustang came with unless it was a cobra.
The axle in your car (edge mustang) was used from 98-04, the actual housing is wider than the previous years sn95 mustangs , not to say one out of an earlier gt wouldn't work, but You will have to consider your wheel/tire/offset combo to fit the car.
Do not do an explorer housing, the pumpkin is offset, the mustang 8.8's are centered.
Do use the explorer's posi unit, as truckdoug said, they will be easier to find along with a wide array of gears, the other benefit is they will be set up for 31 spline axles, witch I don't think your genration of mustang came with unless it was a cobra.
The axle in your car (edge mustang) was used from 98-04, the actual housing is wider than the previous years sn95 mustangs , not to say one out of an earlier gt wouldn't work, but You will have to consider your wheel/tire/offset combo to fit the car.
thanks
Launching!
Joined: Aug 2012
Posts: 203
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From: harrisville R.I
I put a 8 inch in mine with a mini spool. the mini spools are so cheap I paid 25.00 and don't have to worry about the welds breaking. I swapped a l/s into a 74 MGB weighs about 2200 lbs and she is a convertible. fun fun fun. good luck with your swap.
Thread Starter
Teching In
Joined: Mar 2017
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From: Omaha, Nebraska
ill have to look into that thanks