Let's buy a new rearend.
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Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Let's buy a new rearend.
Looking to purchase a S60 and possibly the short umi torque arm since the jegster isn't sold anymore. Does anyone have any suggestions for me. Car will be a street driven restomod 500 Hp
I thought CRP had a rearend/ T/A combo once, but cannot locate it anymore.
I thought CRP had a rearend/ T/A combo once, but cannot locate it anymore.
Last edited by BrutalGTA; 01-03-2016 at 04:31 PM.
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Let's buy a new rearend.
Midwest chassis 9" and crossmember/torque arm
or a moser 9" aluminum center and trutrac
umi crossmember mount TA setup
or a moser 9" aluminum center and trutrac
umi crossmember mount TA setup
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Let's buy a new rearend.
12 bolt will handle that without the power loss/weight of the S60.
#7
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Let's buy a new rearend.
Maybe even use a 8.8, cost, weight and power loss problems solved.
Last edited by TTOP350; 01-04-2016 at 02:51 PM.
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Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Re: Let's buy a new rearend.
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Let's buy a new rearend.
Get whatever your budget allows. Cheap, easy, simple and inexpensive is a basic 9" direct bolt in. A 12 bolt is nice and a S60 is big, heavy and way more diff than you need. In the end, you'll be spending close to $3000 for any of the diffs. It all depends on what internal options you use and what brakes you install.
I have a 9" in my race car with about twice as much power as you want to make. Other than the narrowed housing, everything is aftermarket. The aluminum center section, aluminum daytona pinion support and aluminum spool means I can lift the center section with one hand to put it in. Reduced unsprung weight is a huge advantage. I only run 31 spline axles but if I was using a 3 speed trans instead of a powerglide, I'd have 33 or 35 spline axles.
I have a 9" in my race car with about twice as much power as you want to make. Other than the narrowed housing, everything is aftermarket. The aluminum center section, aluminum daytona pinion support and aluminum spool means I can lift the center section with one hand to put it in. Reduced unsprung weight is a huge advantage. I only run 31 spline axles but if I was using a 3 speed trans instead of a powerglide, I'd have 33 or 35 spline axles.
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Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Re: Let's buy a new rearend.
I was thinking why not over build it and never have to touch it again.
So you think a 12bolt will hold a 3200lb car with 500+lbft tq I was thinking 35splines with trutrac, guess that's overkill too?
Down the road once it's all together for a while (few months) I'd like to supercharge it or dump a healthy shot of dope.
So you think a 12bolt will hold a 3200lb car with 500+lbft tq I was thinking 35splines with trutrac, guess that's overkill too?
Down the road once it's all together for a while (few months) I'd like to supercharge it or dump a healthy shot of dope.
Get whatever your budget allows. Cheap, easy, simple and inexpensive is a basic 9" direct bolt in. A 12 bolt is nice and a S60 is big, heavy and way more diff than you need. In the end, you'll be spending close to $3000 for any of the diffs. It all depends on what internal options you use and what brakes you install.
I have a 9" in my race car with about twice as much power as you want to make. Other than the narrowed housing, everything is aftermarket. The aluminum center section, aluminum daytona pinion support and aluminum spool means I can lift the center section with one hand to put it in. Reduced unsprung weight is a huge advantage. I only run 31 spline axles but if I was using a 3 speed trans instead of a powerglide, I'd have 33 or 35 spline axles.
I have a 9" in my race car with about twice as much power as you want to make. Other than the narrowed housing, everything is aftermarket. The aluminum center section, aluminum daytona pinion support and aluminum spool means I can lift the center section with one hand to put it in. Reduced unsprung weight is a huge advantage. I only run 31 spline axles but if I was using a 3 speed trans instead of a powerglide, I'd have 33 or 35 spline axles.
#18
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Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: Let's buy a new rearend.
The 5 phone calls totaled well over 2 hours and never once did I feel like I was being rushed or pushed to the side.
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Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Re: Let's buy a new rearend.
Customer service was top notch. Above and beyond really. I talked with them 3 times before I ordered my cage and twice afterwards. Even before the sale they went the extra mile to get me info I needed and help me down the right path. It was my first roll cage install and I had a lot of questions.
The 5 phone calls totaled well over 2 hours and never once did I feel like I was being rushed or pushed to the side.
The 5 phone calls totaled well over 2 hours and never once did I feel like I was being rushed or pushed to the side.
Hell yeah, that's good to know. I'll be calling them for sure, I appreciate your help.
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Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Re: Let's buy a new rearend.
Anyone have any recommendations for who to purchase from?
#21
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Re: Let's buy a new rearend.
like posted go with a 9" it will pay for its self. you can get a Detroit locker any gear. 31 spine the unit will bolt in in 40 min by your self for under $2300 shipped. youll never look back. gear sets in units that just drop out and drop in run about $500 ea after that. depending on what parts ya want in them..just did a 2nd one with bolt through alum housing with 4.56 gears and detroit locker for $750. just shop..
Last edited by articwhiteZ; 01-10-2016 at 12:10 AM.
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Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Re: Let's buy a new rearend.
like posted go with a 9" it will pay for its self. you can get a Detroit locker any gear. 31 spine the unit will bolt in in 40 min by your self for under $2300 shipped. youll never look back. gear sets in units that just drop out and drop in run about $500 ea after that. depending on what parts ya want in them..just did a 2nd one with bolt through alum housing with 4.56 gears and detroit locker for $750. just shop..
I've been shopping around, and cannot find the 9" for 2300.
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Car: 86 iroc, 02 v6 camaro
Engine: 350 HSR, 3800 V6
Transmission: T56, WCT5
Axle/Gears: 9in 4.11 posi, 3.23 LSD
Re: Let's buy a new rearend.
i went with a moser 9in
Moser housing fully gusseted and braced
1/2in screw in studs
fill/drain holes installed
stock width
31 spline axles
yukon aluminum third member
yukon trac-lok posi
4.11 gears
1350 yoke
third member assembled by quick performance.
rear brakes were upgrade to lt1 since the older third gen backing plates will not work without modifying them.
the install went fine, things fit perfectly. honest rookie mistake when pressing on the axle bearings.. i assembled them with the backing plates on the wrong sides (9in axles are different lengths). so that was a costly mistake with shop fees and the cost of new bearings. i also noticed the car does sit 3/4-1in higher than the rear due to the tall spring perches so i will have to get shorter springs for my weight jacks
havent really flogged on it yet, i really want to see how the car likes the gear. it is quiet with a slight whine on decel, kinda bummed about it but i will live with it.
overall i am happy with how it looks and now really cant wait for the racing season
Moser housing fully gusseted and braced
1/2in screw in studs
fill/drain holes installed
stock width
31 spline axles
yukon aluminum third member
yukon trac-lok posi
4.11 gears
1350 yoke
third member assembled by quick performance.
rear brakes were upgrade to lt1 since the older third gen backing plates will not work without modifying them.
the install went fine, things fit perfectly. honest rookie mistake when pressing on the axle bearings.. i assembled them with the backing plates on the wrong sides (9in axles are different lengths). so that was a costly mistake with shop fees and the cost of new bearings. i also noticed the car does sit 3/4-1in higher than the rear due to the tall spring perches so i will have to get shorter springs for my weight jacks
havent really flogged on it yet, i really want to see how the car likes the gear. it is quiet with a slight whine on decel, kinda bummed about it but i will live with it.
overall i am happy with how it looks and now really cant wait for the racing season
#24
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Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: Let's buy a new rearend.
You can do the ford 9" cheaper if you shop around. Here is what I done..
Moser housing and axles shipped to my door $1100
Ford iron case third member built by valley custom diff. in CA with motive gear set, timkin bearings, nascar take out Detroit locker, $735 shipped.
Second gen F body drum backing plates (free, I had them) and enlarged the hole to fit.
Second gen wheel cylinders, brake shoes, springs, etc $70
ES poly uni. sway bar end links and bushings, 3" exhaust clamps...$30
Around $1900 for my complete ford 9"
Moser housing and axles shipped to my door $1100
Ford iron case third member built by valley custom diff. in CA with motive gear set, timkin bearings, nascar take out Detroit locker, $735 shipped.
Second gen F body drum backing plates (free, I had them) and enlarged the hole to fit.
Second gen wheel cylinders, brake shoes, springs, etc $70
ES poly uni. sway bar end links and bushings, 3" exhaust clamps...$30
Around $1900 for my complete ford 9"
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