B&M TH350 swap kit, discontinued bracket
Thread Starter
Supreme Member

Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
B&M TH350 swap kit, discontinued bracket
Welp, I get the kit start reading the instructions and trying to put stuff together. I need the "B" style bracket so I go online and look up part numbers ...Yup, discontinued. Just my luck.
So what am I supposed to do now? Is there any way around this? Any year car I might be able to find in a junkyard that would have that bracket? This really sucks... I need to get this car rolling in the next week or two. I'm almost tempted to buy a Spohn torque arm.
Thanks,
Chris
So what am I supposed to do now? Is there any way around this? Any year car I might be able to find in a junkyard that would have that bracket? This really sucks... I need to get this car rolling in the next week or two. I'm almost tempted to buy a Spohn torque arm.
Thanks,
Chris
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
got a pic of the bracket you need? i might have one laying around.
Thread Starter
Supreme Member

Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Here it is, apparently theres 3 or more different ones. Its called the "outer torque arm" bracket. According to the instructions I need the "B" style part# 10034259.
Looking at the pictures the bracket APPEARS to look the same on both. The bushing just looks different. I'm wondering if I can buy the "A" style one and put the bushing off my stock bracket (looks the same too) onto it... Hard to tell from the pictures though.
Looking at the pictures the bracket APPEARS to look the same on both. The bushing just looks different. I'm wondering if I can buy the "A" style one and put the bushing off my stock bracket (looks the same too) onto it... Hard to tell from the pictures though.
Supreme Member
iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
take that half of the bracket off the factory torque arm.
it's the same piece. glad to help.
it's the same piece. glad to help. Member
Joined: Feb 2003
Posts: 185
Likes: 0
From: nova scotia,canada
Car: 87 irocz
Engine: 406
Transmission: th400
Axle/Gears: 4.10
i bought the energy suspenion mount when i did mine ,all i did was drill the rivits out of the old outer bracket and bend the outer bracket to fit the es mount...works great took like 5 minutes
Well here's my experiences with this. My car is a 1989 IROC-Z, came stock with the 700R4. I swapped in a TH350-C with the long shaft and used the Hurst Torque Arm Conversion kit. It sounds like the instructions that came with the B&M kit are much better than the instructions for the Hurst kit. My instructions did not mention anything about two different styles of brackets, and after seeing that picture of both brackets I'm beginning to understand why my swap did not go smoothly. From looking at your picture my car had the B style outer clamshell bracket (matching up the bushing). I took the inner bushing part, drilled out the rivets and mounted it in the Hurst bracket. Then I used my B style outer bracket, mounted it up against the Hurst bracket and the bolt holes did not match up. A call to local parts suppliers got me nowhere, everyone said there was only 1 type of bracket (apparently they all suck). I ended up drilling my own holes in the Hurst bracket so that my B style outer clamshell bracket would bolt up. I did some searching on this website because I was so disappointed in the Hurst kit, saw another member used the same Hurst kit with his 82 Camaro and had no problems with the bolt holes lining up. So I can only guess that yes the two brackets themselves are different (as are the bushings). It looks like the A style bracket (I'm assuming from early model cars) there has a longer extention towards the top, might have given me the right fit, the holes I needed to line up fell short. Since my car is a later model 89 with the 700R4 and I had the B style bracket you need, I'm guessing you could probably find your part in a yard. If worse comes to worse just match them up and drill your own holes. Dont break down and drop $400 on a torque arm just because these brackets and bushings dont line up perfectly from the get go. You're almost there, keep going. Have you got to bending the cooling lines yet? Thats probably the scariest part of the swap IMO (the idea of kinking or cross threading those coolant lines and having to replace them yikes). I used a small tubing bender and went slow hahaha.
Thread Starter
Supreme Member

Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Theres 3 (or more) different outer brackets because the one that came off my stock 700R4 isnt A or B style. I'll take a picture of it next time I go over to my garage. It appears to have the same bushing but the bracket is bigger and shaped differently on the bottom. I was messing with it last night and there is almost NO way the bracket can be bent or re-drilled to accept the B&M bracket. You'd have to cut some sections out of it and weld it back together before it'd even come close to fitting properly.
I'm gonna do some junkyarding this weekend and see what I can come up with... I really hope I find the right bracket in a junkyard because I *need* this car to be done and running properly within the next 2 weeks.
I'm gonna do some junkyarding this weekend and see what I can come up with... I really hope I find the right bracket in a junkyard because I *need* this car to be done and running properly within the next 2 weeks.
Trending Topics
Thread Starter
Supreme Member

Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Update on this... Both brackets ARE the same! The only difference is the bushing. I bought the "A" style bracket from GM and got it in yesterday then I simply drilled out the bushing it came with and put the other style onto it. Works like a charm.
Energy Suspension bushing
Has anyone used a bushing like the one on this site? If so, how
did it fit? http://www.energysuspension.com/pages/cam2.html
did it fit? http://www.energysuspension.com/pages/cam2.html
Thread
Thread Starter
Forum
Replies
Last Post
Terrell351
Engine/Drivetrain/Suspension Parts for Sale
5
Jun 13, 2021 01:13 PM
ambainb
Camaros for Sale
11
Apr 25, 2016 09:21 PM
toronto formula
Engine/Drivetrain/Suspension Parts for Sale
15
Nov 10, 2015 06:17 AM
3rd, 89, arm, bm, bracket, camaro, changeover, directions, gen, installation, instructions, kit, swap, th350, thirg, torque





