|02-25-2013 03:43 PM|
|28 coupe||I drove impala into shop and put on hoist and found cast iron powerglide looked like one in pontiac pulled it out and removed cover and screen looks good will change rear seal and install and should be back on the road. tks for all the input.|
|02-20-2013 10:32 PM|
|vinniekq2||Berts automotive Vancouver branch. Bruce Flodin Abbotsford. both are fluent in powerglides.There is a shop in Calgary I could find if that is better.Have to phone a friend though,,,|
|02-20-2013 09:32 PM|
|joshp83||theres a shop in toronto that spiecalizes in classics ill try to find there name thats the only source i know in canada|
|02-19-2013 07:04 PM|
thanks for all the input. I removed the tranny today it is a cast iron power glide put it one the bench and ripped it apart, found the hi clutch pack had been slipping, also found rear pump housing cracked. so far haven't found source for pump but I do have in my get to some day line of cars a 62 impala which has a 235 and an alumin case power glide so I think I will just pull that one and put in pontiac. when I get to impala I would like to put in sbc and turbo 350 anyway. this will give me a good reasin to do so.
|02-17-2013 09:46 AM|
|junior stocker||To mate any more modern transmission to the 261 (or the 216 and 235 engines) requires an adapter. Kits are sold through several vendors, but they are not very cheap; you'll probably actually pay less for the transmission (late model). Some come complete with the adapter, starter motor, flexplate, and fasteners. There will be a need to change the slip yoke, and possibly you'll have to shorten the driveshaft (the X-frame cars had 2 piece driveshafts). The trans mount location may need to be moved or modified. Then there's the shifter to deal with, unless you go with an aftermarket floor shifter; the stock column shifter will work, but the detents and display may be off. They make new displays for the tri-five cars so they are probably available for yours as well (I'm guessing it has the Chevrolet dash?). The kickdown linkage will need to be fabricated, but you can get by without that with a TH350; you'll just have to drop down to lower gears manually. It sounds like the direct clutches are burned up in the cast iron Powerglide; you can rebuild the trans, but rebuild kits cost more than the more modern transmissions, and rebuild shops will probably gouge you on the rebuild price(just my opinion here). If you have any real mechanical ability, you can do it yourself using an old MOTORS MANUAL, and a kit off of E-Bay. I'd try and keep the car as stock as possible; it's got to be rare, especially in Canada, and they did'nt make as many of them as say the 58 Chevrolets. One other consideration would be to use an Aluminum Powerglide, and I believe the detents of the cast iron Glide were changed in 58 and are the same as the aluminum Glide. They made an X-frame, aluminum Powerglide in 62-64 that may be closer to the right length, and would also bolt to the 261 with the same adapter. Butch/junior stocker.|
|02-14-2013 10:16 PM|
If your car has a 261 engine in it and it is stock that is a Canadian built automobile and probably has Hydramatic transmission similar to the one in the '58 Olds built in the US. I'm and old timer and when GM had a fire destroy their Hydramatic Plant they moved all of the automatic transmission assembly into a Buick Dynaflow plant. Then we started seeing some different combinations. I worked in a dealership shop in those days. I even saw several Cadillac's with the Dynaflow in them. I'll bet the owners never knew the difference. My suggestion is to get the car up in the air and look for any identifier tags. AND take photos of the transmission. Then get back to us here. I'll bet we can help you and maybe save you from having a bad experience.
|02-13-2013 07:07 AM|
|big gear head||
To replace the transmission that you have now will at least require changing the yoke on the drive shaft. The early transmissions had a coarse spline shaft. The TH350 and other later transmissions had a 27 spline shaft.
|02-13-2013 05:13 AM|
The problem you may have however is with the starter mounting on the 261 six....Might be time to drop a small block in it.
|02-12-2013 10:03 PM|
the power glide was built in 51 it was cast iron 57 had a turbo glide option it lasted til 59-60 it was based off the buick dyna flow 62 the aluminum case power glide came out
if you want a driver swap a th 350 in be the cheapest route if u can find a shop that build the old ones there getting scarce i build them at my shop im located in west virginia that a bit of a haul from canada
|02-12-2013 09:27 PM|
I dont know,just what I heard
|02-12-2013 12:14 PM|
|big gear head||Powerglide wasn't produced until '62. Earlier aluminum 2 speed was a Turboglide from '58 to '61.|
|02-12-2013 11:53 AM|
I drive a 58 pontiac more door for a daily driver stock 6 cal 261 chevy motor but the other day as I was going to town ( about 30 miles) the tranny started to slip and I limped home in low. long drive. my question is should I try to get power glide rebuilt or find a newer tranny and if so which one? all ideas suggestions appreciated.